How-to library
Small electrical jobs, explained properly
Honest, UK-specific walk-throughs for jobs a careful homeowner can safely tackle - and equally, a plain statement of when to stop and call a qualified electrician. Every guide includes a helpful video picked because it gets the UK-specific parts right.
How to replace a fan oven element (UK)
A safe UK guide to replacing a fan oven heating element: isolating at the mains, finding the correct replacement part by model number, fitting it and testing. Clear on when to call an electrician.
Read the guideEV charger not working: common fixes (UK)
Step-by-step fault-finding for a home charger that won't start a charge session, shows error lights or has stopped working: status LEDs, consumer unit checks, vehicle side, power-cycle and cable inspection.
Read the guideBathroom extractor fan not working: fault-finding (UK)
A UK electrician's guide to a bathroom fan that won't run, hums without turning or runs continuously: MCB checks, capacitor testing, wiring inspection and when to call an electrician.
Read the guideHow to replace a storage heater
A step-by-step UK guide to replacing a storage heater on a dedicated Economy 7 circuit: isolating safely, disconnecting the FCU, removing the old unit and fitting the new one.
Read the guideWire a dimmer in a two-way lighting circuit
A UK guide to fitting a dimmer switch in a two-way lighting circuit: choosing a two-way compatible dimmer, the C/L1/L2 connections and testing both switch positions safely.
Read the guideReplace a ceiling pull cord light switch
A UK guide to replacing a ceiling pull cord light switch: safe isolation at the consumer unit, checking the rating, transferring the wires and testing before restoring power.
Read the guideFox ESS Cube battery storage system installation (UK)
What a Fox ESS Cube installation involves: PAS 63100 site survey, AC or DC coupling choice, DNO notification under G98/G99, CT clamp metering and Fox Cloud commissioning.
Read the guideWhat to expect from an Indra Smart Pro EV charger installation (UK)
A UK guide to the British-made Indra Smart Pro: dedicated circuit sizing, internal DC fault protection, V2G readiness and commissioning via the Indra app.
Read the guideHow to install a Wallbox Pulsar Max EV charger (UK)
A UK guide to Wallbox Pulsar Max installation: why Type A RCBO suffices, dedicated circuit sizing, mounting, wiring and commissioning via the Wallbox app.
Read the guideSolar panels, battery storage or a heat pump: which to get first?
The order matters for your savings and grant eligibility. A plain UK guide to sequencing home electrification in 2026: heat pump first, then solar, then battery storage - and when to break those rules.
Read the guideWhat to know before getting solar panels (UK checklist)
Six things to check before signing a solar PV quote: roof orientation and shading, consumer unit capacity, DNO notification rules, MCS certification, Smart Export Guarantee rates and 0% VAT eligibility.
Read the guideWhat to expect from a Tesla Powerwall 3 installation (UK)
The Powerwall 3 combines a 5 kW solar inverter and 13.5 kWh battery in one unit. A plain guide to the G99 DNO process, Gateway 2 commissioning, PAS 63100 compliance and the certificates to keep.
Read the guideHow to move a consumer unit
What moving a domestic consumer unit actually involves: DNO notification, isolating circuits, extending cable runs and the certification required. Honest about when you need a registered electrician.
Read the guideFault-find a sparking or hot socket outlet
A sparking socket or one that runs warm is a warning sign. Safe checks in the right order, including opening the faceplate to inspect terminals, with honest advice on when to call a qualified electrician.
Read the guideEV charging in a flat or without a driveway
Options for EV charging without a driveway in 2026: Mode 2 from a 13A socket, on-street chargers, communal block charging and the OZEV flat grant for allocated parking spaces explained.
Read the guideHow to diagnose a broken neutral
When a neutral conductor breaks on a ring circuit, odd voltages appear and appliances behave strangely. This UK guide covers the voltage checks, continuity testing and how to trace the break accessory by accessory.
Read the guideBathroom fan wiring methods: 2-plate and 3-plate
A UK guide to the two standard bathroom extractor fan wiring methods, how the overrun timer fits in, and when you need an FCU rather than a socket supply.
Read the guideTest a lighting circuit: the 3-plate method
The standard UK method for measuring R1+R2 on a lighting circuit under BS 7671 using a shorting link at the consumer unit, with polarity checks and earth fault loop impedance testing.
Read the guideHow to install outdoor festoon lights safely
A safe UK guide to hanging outdoor festoon party lights: choosing a weatherproof supply point, checking IP ratings, confirming RCD protection and testing before guests arrive.
Read the guideCan you charge an electric car from a 3-pin socket?
A UK guide to Mode 2 charging from a 13A socket: what the EVSE cable does, the socket checks you must make, how fast it charges and when to upgrade to a dedicated wallbox.
Read the guideHow to fit a Cat5e or Cat6 data socket
A UK guide to terminating a Cat5e or Cat6 RJ45 data socket: stripping carefully, punching down in T568B order and testing every pair before the patch lead goes in.
Read the guideHow to test mains smoke and heat alarms
Monthly testing, the correct press-and-hold technique, checking the interlink and hush function, and when to replace a unit that fails the test.
Read the guideHow to trace an intermittent electrical fault
Log the pattern, narrow the circuit, inspect accessible accessories and use a multimeter to find a fractured conductor before deciding when to call an electrician.
Read the guideChoosing the right RCD for a heat pump (Type A, B and F)
A UK guide to the RCD type selection for an air source heat pump supply -- why Type A often causes nuisance trips, what the Heat Pump Association recommends, and how to use the manufacturer data sheet.
Read the guideUnderstanding the Smart Export Guarantee (SEG)
The government-backed scheme that pays solar owners for electricity exported to the grid -- who qualifies, how to find the best rate, and what you need to register with a licensed supplier.
Read the guidePlug-in solar in the UK: what the 2026 rules mean for homeowners
BS 7671 Amendment 4 came into force in April 2026, creating a new route for 800W plug-in solar units -- but installation still requires a hard-wired circuit from a registered electrician.
Read the guideHow DC and AC electricity work in a home solar system
A plain-English UK guide to DC and AC for solar and battery owners - what each type is, how an inverter converts between them, and what AC versus DC coupling means for battery storage.
Read the guideWhy does my AFDD keep tripping?
A safe step-by-step UK guide to finding out why an arc fault detection device keeps tripping - from nuisance trips caused by appliances to genuine wiring faults that need an electrician.
Read the guideIs home battery storage worth it?
A realistic UK cost and payback guide - typical system prices, solar self-consumption savings, time-of-use tariff arbitrage and honest payback periods without the marketing spin.
Read the guideUnderstand current UK wiring colours (post-2004)
A plain guide to the harmonised BS 7671 wiring colours in use since 2004: brown live, blue neutral, green-yellow earth - plus three-phase colours, flex, and how old pre-2004 wiring relates to the current system.
Read the guideReplace an immersion heater element
A UK guide to replacing a failed immersion heater element: isolating the supply, draining the cylinder, removing the old element, fitting the replacement with the correct BSP thread and setting the thermostat to 60°C.
Read the guideChoose and fit a bathroom extractor fan safely
A UK guide to selecting the right extractor fan for the bathroom zone and extraction rate required, removing the old unit safely, and fitting the replacement with the correct IP rating and duct connection.
Read the guideFault-find a night storage heater
A systematic UK approach to diagnosing a night storage heater that won't charge or won't release heat - checking the Economy 7 MCB, FCU fuse, input and output controls, and testing elements with a multimeter.
Read the guideFit a TV aerial coaxial cable connector
A UK guide to stripping coaxial cable and fitting a Belling-Lee plug or F-connector for terrestrial or satellite TV - the three connector methods explained, with guidance on adding a coaxial wall plate socket.
Read the guideInstall an Andersen EV charger
What a correct Andersen A2 or A3 7.4 kW home charger installation involves: consumer unit check, cable sizing, mounting, wiring, CT clamp load balancing and commissioning via the Andersen Home app.
Read the guideWhat is V2H bidirectional EV charging?
V2H lets your EV battery run your home circuits. A plain UK guide to how it works, which cars support it in 2026, compatible chargers and what installation involves.
Read the guideFit a pop-up socket in a kitchen worktop
Most pop-up units plug in and need no electrician. This UK guide covers positioning rules, hole cutting, when hardwired units need a qualified electrician, and what to test before use.
Read the guideWire a central heating programmer
How to replace a wired central heating programmer safely: isolating at the consumer unit, photographing existing wiring, transferring conductors one at a time to the new unit and testing the heating and hot water response.
Read the guideReplace fusewire in a rewireable fuse box
How to safely replace blown fusewire in a Wylex or similar BS 3036 rewireable fuse box: identifying the blown carrier, fitting the correct current rating and testing before restoring power.
Read the guideRun cable in steel conduit
How to measure, cut, deburr and bend steel conduit, fix it with saddle clips, pull single-core PVC conductors through and earth the conduit system correctly under BS 7671.
Read the guideInstall an Easee One EV charger
What a correct Easee One 7.4 kW home charger installation involves: consumer unit check, cable sizing, mounting, wiring and commissioning via the Easee Charge app.
Read the guideInstall a Myenergi Eddi solar diverter
How to install a Myenergi Eddi solar diverter: CT clamp position, wiring to the immersion heater, powering up and getting it talking to the myenergi app.
Read the guideFault-find electrical problems in a new-build
How to spot and document electrical faults in a new home, test what is safe to test yourself, and build the evidence trail that gets defects fixed under the NHBC warranty.
Read the guideWire a batten lampholder (BC and ES)
How to wire a BC (bayonet cap) or ES (Edison screw) batten holder safely: identifying conductors, the live-and-neutral terminal assignment that matters, earthing plastic and metal holders, and testing.
Read the guideFault-find garden lighting
A systematic UK approach to diagnosing dead or flickering garden lights: checking the RCD, FCU, cable joints, connectors and fittings in the right order before calling an electrician.
Read the guideCarry out electrical second fix
Fitting accessories, dressing conductors, connecting sockets and switches after plastering, and the dead tests required before the board goes live under BS 7671.
Read the guideRun cable under a floating floor
Threading twin and earth cable under laminate or engineered boards using a cable rod, protecting conductors at entry and exit points, and the tests required before relaying the floor.
Read the guideUse a multifunction tester (MFT)
An MFT goes beyond a basic multimeter to carry out the full BS 7671 Chapter 61 test suite: continuity, insulation resistance, earth fault loop impedance, prospective fault current and RCD trip time.
Read the guideWire a conservatory electrical supply
A dedicated circuit from the main consumer unit, SWA armoured cable and a small RCD sub-board - what the standard conservatory electrical installation involves, and why Part P notification is required.
Read the guideFault-find an electric shower
A systematic approach to diagnosing a non-working electric shower: testing the MCB, element, solenoid valve, thermal cut-out and pressure switch in the right order before calling an electrician.
Read the guideInstall a GivEnergy All-In-One home battery
What a GivEnergy All-In-One AC-coupled battery installation involves: assessing the supply, mounting the unit, wiring the AC connections, fitting the Giv-Gateway and commissioning on the GivEnergy app.
Read the guideHow to replace an electric shower
A UK guide to replacing an electric shower: isolating the circuit, removing the old unit, checking the existing circuit capacity, fitting the new shower and making safe electrical connections.
Read the guideCarry out initial verification on a new installation
The full sequence of dead and live tests required by BS 7671 Chapter 61 before energising any new circuit or consumer unit in the UK, from visual inspection to loop impedance and RCD trip times.
Read the guideTest continuity of a circuit
R1+R2 protective conductor continuity testing under BS 7671 - the link method, nulling test leads, recording values and what an open-circuit reading means before you energise new work.
Read the guideWire a separate hob and oven to one circuit
How to use a twin outlet unit to connect a built-in hob and fan oven to a single 32A cooker circuit - diversity calculation, cable sizing and step-by-step connections.
Read the guideFit a 2-gang dimmer switch
Replacing a standard 2-gang plate with a 2-gang dimmer - LED compatibility checks, isolating both circuits, wiring each gang separately and verifying earth connections on the new plate.
Read the guideWire an electric gate motor supply
A UK guide to the dedicated circuit for a domestic gate operator: SWA underground cable, IP66 controller enclosure, gate frame earthing and the mandatory BS EN 12453 warning sign every electrically operated gate must carry.
Read the guideWhat is a smart home energy panel?
Smart home panels add per-circuit monitoring, app control and time-of-use automation to your consumer unit. This UK guide covers how they work, which systems suit which homes and what Part P installation involves.
Read the guideUnderstand voltage drop in UK domestic wiring
BS 7671 Regulation 525 limits voltage drop to 3% on lighting circuits and 5% on power circuits. A plain calculation with the mV/A/m table shows whether your cable is adequate - critical for long runs to garden rooms, loft conversions and workshop supplies.
Read the guideUnderstand IP ratings for UK electrical equipment
The two-digit IP code on a light fitting or socket tells you exactly how well it resists dust and water. Know what the digits mean and you can pick the right fitting for any bathroom zone or outdoor location under BS 7671.
Read the guideHow to measure prospective fault current (PFC)
PFC is the worst-case fault current at the origin of your installation. BS 7671 Regulation 434.5.1 requires every MCB and RCBO to be able to break it safely. Here is what the test involves and what the reading means on your EICR.
Read the guideInstall a loft light
Most loft spaces have no fixed lighting. This UK guide covers running 1.0 mm² twin and earth from the landing lighting circuit, fitting a switch near the hatch, connecting a batten fitting and testing safely before switching on.
Read the guideFit an immersion heater time switch
Swapping the plain on/off switch on a hot water cylinder circuit for a programmable 24-hour or 7-day time switch is one of the most cost-effective small electrical jobs in a home. This UK guide covers safe isolation, identifying supply and load terminals, wiring the new switch and setting the programme.
Read the guideInstall a positive input ventilation (PIV) unit
A PIV unit in your loft gently pressurises the house to push out damp, stale air -- one of the most effective fixes for condensation damp. This UK guide covers positioning the diffuser, routing the duct, wiring the fused connection unit and confirming airflow.
Read the guideWire a backup generator changeover switch
Connecting a generator without a proper changeover interlock is dangerous and illegal. This UK guide explains the back-feed risk, the three common domestic interlock methods, how to size the inlet socket and what Part P certification is required.
Read the guideWire a dedicated storage heater circuit
Each storage heater needs its own radial circuit, not a shared ring. This UK guide covers reading the data plate, sizing the cable and MCB, Economy 7 metering arrangements, fitting the fused connection unit and the polarity, earth and insulation resistance tests required before switching on.
Read the guideWire the electrics in a house extension
From first fix cable runs through consumer unit connections, second fix and dead testing to issuing the Electrical Installation Certificate under Part P -- a full walk-through of a house extension electrical installation.
Read the guideWire up a consumer unit
Dressing circuit cables, identifying every conductor, connecting CPCs to the earth bar, neutrals to the neutral bar and lines to the MCBs or RCBOs, then dead testing before the meter tails go on.
Read the guideFit IP65 fire-rated bathroom downlights
Understanding bathroom electrical zones, choosing a fitting with the right IP rating and fire resistance, cutting safely, connecting with lever connectors and testing -- with guidance on when to stop and call an electrician.
Read the guideUnderstand open PEN conductor fault protection
What a broken PEN conductor means on a TN-C-S (PME) supply, the danger it creates to earthed metalwork outside, and how BS 7671 Section 722 requires open PEN protection on every new EV charger installation.
Read the guideUnderstand diversity and maximum demand
Why your home's connected load far exceeds your 100A service fuse yet the fuse never blows, how BS 7671 Chapter 31 defines maximum demand, and how an electrician sizes your consumer unit and meter tails correctly.
Read the guideInstall an Ohme Home Pro EV charger
What an Ohme Home Pro installation involves -- supply and earthing check, dedicated 32A circuit, Type B RCBO and commissioning with live tariff integration via the Ohme app.
Read the guideFault-find a flickering light
A systematic UK approach to diagnosing a flickering or intermittent light -- checking the lamp, dimmer compatibility, loose connections and when to call an electrician.
Read the guideInstall a Hypervolt Home 3 EV charger
What a Hypervolt Home 3 installation involves -- load assessment, earthing arrangement, dedicated 32A circuit, Type B RCBO and commissioning with the Hypervolt app.
Read the guideReplace an immersion heater thermostat
How to replace a faulty immersion heater thermostat safely: isolating the circuit, testing dead, swapping the stat and setting the correct temperature to prevent Legionella.
Read the guideInstall a 600x600mm LED ceiling panel
A UK guide to fitting a recessed or surface-mount LED ceiling panel: isolating the circuit, cutting the aperture, connecting the driver and testing the CCT switch.
Read the guideInstall a Pod Point Solo 3S EV charger
What a Pod Point Solo 3S home EV charger installation involves: supply assessment, cable routing, Type B RCBO, Part P notification and commissioning via the Pod Point app.
Read the guideWire an induction hob
How to connect an induction hob to an existing cooker circuit - checking cable and cooker connection unit rating, isolating safely at the consumer unit, making the terminations and testing every zone.
Read the guideFit a 16A commando socket in a garage or workshop
Installing a blue BS EN 60309 16A socket on a new dedicated circuit - RCBO selection, cable sizing, surface-mounting the enclosure and testing under BS 7671 with Part P obligations explained.
Read the guideWhat is a Minor Electrical Works Certificate?
Every time an electrician adds a socket or makes a small alteration to an existing circuit, they should hand you a Minor Electrical Works Certificate. Here is what it covers, what the condition checks mean, and why it matters when you sell.
Read the guideWhat is an Electrical Installation Certificate?
When a new circuit or consumer unit is installed, the electrician must provide an Electrical Installation Certificate. Here is what the Schedule of Inspections and Schedule of Test Results contain, and what to do if yours is missing.
Read the guideHow to use a plug-in socket tester
A plug-in socket tester can tell you in seconds whether a socket is correctly wired -- polarity, earth presence, and the most dangerous fault of all, live and earth reversed. UK brands, indicator legends explained, and when to call an electrician.
Read the guideInstall an infrared heating panel
A UK guide to fitting an infrared heating panel - choosing the right wattage for the room, planning the electrical supply, mounting on solid structure and adding thermostat control.
Read the guideUse Wago 224 connectors for light fittings
The Wago 224 is a pendant connector with push-in terminals for fixed wiring and screw-clamp terminals for lamp flex - the right choice for connecting a pendant luminaire to a fixed lighting circuit.
Read the guideWire a Y-plan central heating system
The Y-plan uses a single 3-port mid-position valve to serve both central heating and hot water. Understanding the mid-position logic helps you diagnose zone faults accurately and know when to call a qualified electrician.
Read the guideUse a multimeter for electrical testing
A UK guide to using a digital multimeter for domestic electrical testing - choosing the right safety category, measuring mains voltage, checking continuity and resistance, and when to stop and call an electrician.
Read the guideUse crimp connectors for electrical cables
A UK guide to crimping bootlace ferrules and butt-splice connectors onto electrical conductors - selecting the right crimp size, stripping correctly, using a ratchet crimp tool and enclosing the joint under BS 7671.
Read the guideUse Wago 221 lever connectors
A UK guide to making safe cable joints with Wago 221 lever connectors - choosing the right pole count, stripping to 11 mm, securing the conductor and housing the connection correctly under BS 7671.
Read the guideWhen to use 3-core and earth cable
Twin and earth is not enough for two-way switching, intermediate light switches, or fans needing a permanent live and a switched trigger. Three-core gives you brown, black and grey conductors - here is when each job calls for it and how to mark the cores correctly.
Read the guideWire a dusk-to-dawn photocell switch
A photocell switch turns outdoor lights on at dusk and off at dawn automatically. Choosing the right lux threshold, identifying L in, N and L out, making the connections, and positioning the sensor away from the light it controls.
Read the guideWire a solar CT clamp for smart EV charging
A current transformer clamp on the grid import conductor lets a solar-aware EV charger detect surplus generation. Where to clip it, how to run the signal cable to the charger, and how to commission solar mode in the app.
Read the guideWire a no-neutral smart light switch
Why no-neutral smart switches exist in UK homes, which modules work behind a standard plate, how to wire the bypass correctly and configure the switch for your lighting circuit.
Read the guideWire kitchen appliance isolators
BS 7671 Reg 537.3.1 requires a local isolator for every fixed kitchen appliance. How to wire a 13 A or 20 A FCU for a fridge, washing machine or dishwasher on a UK kitchen ring circuit.
Read the guideHow to PAT test appliances
Class 1 and Class 2 appliances explained, the four tests a portable appliance tester runs, how to record results correctly and when an item fails and must be taken out of service.
Read the guideHow to use a clamp meter at home
Clip the jaw around a single live conductor and read the current in amps - without breaking the circuit. Use it to check whether a ring circuit is overloaded or a new appliance is drawing what you expect.
Read the guideMain protective bonding explained
What bonding is, which services must be connected under BS 7671 Regulation 411.3.1.2, why 10 mm² conductor is the minimum in most UK homes, and how to spot missing or disturbed bonding after plumbing work.
Read the guideHow to use a non-contact voltage tester (volt stick)
Prove the tester before you use it, hold the tip near the cable sheath, and never trust the reading without a two-pole tester to confirm. What phantom voltage is and why it matters.
Read the guideFit an AFDD to a consumer unit
An arc fault detection device detects the electrical arcing signature that can cause fires before a conventional MCB or RCD trips. Here is how one clips into a Crabtree Starbreaker board and what BS 7671 Amendment 2 says about where they are needed.
Read the guideWire a Drayton motorised zone valve
The actuator head on a Drayton or Honeywell 2-port zone valve is the most common zone valve failure in UK S-plan heating systems. Replace the powerhead without draining the system using this step-by-step wiring guide.
Read the guideWire a wired room thermostat
How to replace a Drayton RTS2 or Honeywell T6360 wired room thermostat: which terminals take which conductors, where to mount it, and how to confirm the boiler responds correctly.
Read the guideHow to save money on a house rewire
Practical advice from an electrician: timing your rewire to coincide with other building work, preparing access yourself, comparing itemised quotes and the payment schedule that protects you.
Read the guidePlan your solar PV installation
The electrical checks every UK homeowner should make before signing a solar quote: DNO permissions, MCS certification, consumer unit readiness and the Smart Export Guarantee explained.
Read the guideMCB selectivity and discrimination
Why some consumer units trip the whole board when one circuit faults, how shared RCDs cause unnecessary blackouts, and why all-RCBO boards give inherent selectivity on every circuit.
Read the guideStrip and terminate twin and earth cable
How to correctly strip PVC twin and earth cable, sleeve the circuit protective conductor in green-and-yellow sleeving, and make secure terminations at sockets, switches and ceiling roses.
Read the guideDrill through joists and run cable safely
The BS 7671 rules for drilling holes in floor and ceiling joists - safe drilling zones between 25% and 40% of the span, maximum hole size of 25% of joist depth, and protecting cables with grommets.
Read the guideElectrical first fix: planning cable runs before the walls go up
What first fix electrical work involves in a house rewire or extension - agreeing positions, running cables in safe zones, securing correctly and labelling every run before the walls are plastered.
Read the guideFit an MCB or RCBO to a consumer unit busbar
How to clip a replacement MCB or new RCBO onto a Wylex-type busbar, make the conductor connections correctly and confirm everything tests clean before restoring power.
Read the guideUK electricity supply: cutout, meter and consumer unit
Who owns the service head, the meter tails, the meter and the consumer unit in a UK home, who to call when each part develops a fault, and what an electrician can and cannot do.
Read the guideChoose an EV charger to work with your solar panels
What makes a charger solar-aware, CT clamp sensing versus inverter integration, smart tariff compatibility and the grant eligibility checks to make before you buy.
Read the guide7 common reasons homes fail an EICR inspection
The faults UK inspectors most commonly find: missing RCD protection, deteriorated old wiring, inadequate bonding, oversized fuses and more. Understand what is on the checklist before your inspection.
Read the guideType AC, A and B RCDs for home EV chargers
Why a standard plug-circuit RCD is not sufficient for a dedicated home charger, what Type A and Type B devices detect differently, and what BS 7671 requires for Mode 3 installations on PME supplies.
Read the guideWhat goes inside a modern UK consumer unit (2025)
Steel enclosure, 100A main switch, surge protection device, individual RCBOs and possibly arc fault detection devices: what each component does and why it is there in a correctly specified 2025 board.
Read the guide10 common DIY electrical mistakes to avoid
Ten wiring mistakes that UK homeowners make when taking on electrical work themselves - from working live to skipping the earth - and what to check at every step.
Read the guideUK kitchen electrical rules: sockets, cooker circuits and Part P
Where BS 7671 says sockets must go in kitchens, how high above worktops, how close to a sink or gas hob, what circuit a cooker needs, and why any kitchen work is Part P notifiable.
Read the guideUnderstand Part P: what electrical work you can do yourself
What Part P of the Building Regulations actually says about DIY electrical work in England: which jobs are non-notifiable, which need building control, and how to get work certified legally.
Read the guideFit a dry lining back box in a stud wall
How to cut an accurate hole in plasterboard, fit a dry lining box, secure the wings and prepare for a socket or switch - without cracking the surrounding board.
Read the guideTest circuit polarity
Using a plug-in tester and multimeter to confirm live and neutral are connected the right way round on every socket and light fitting in a circuit.
Read the guideEICR requirements for landlords
The Private Rented Sector Regulations 2020 explained: five-year inspection cycles, who can carry them out, remediation deadlines and fines up to £30,000 per breach.
Read the guideUnderstand old UK rewireable fuse boxes
What the ceramic Wylex and MEM rewireable fuse boards still found in many UK homes actually are, why they offer less protection than a modern board, and when an upgrade is worth considering.
Read the guideUnderstand cable safe zones (prescribed zones)
Where BS 7671 requires electricians to run concealed cables in walls and ceilings -- and why knowing these zones matters before you drill into any wall in your home.
Read the guideFault-find a ring circuit
Step-by-step method for tracking down why a socket circuit keeps tripping, from the unplug test to checking for corroded terminals in back boxes -- with clear stop-and-call advice.
Read the guideFit a kitchen heat alarm
Why kitchens need a heat alarm rather than a smoke alarm, how to choose a Grade D mains-powered unit, position it correctly and wire it into your interlinked alarm system under BS 5839-6.
Read the guideChoose the right consumer unit
Split-load, all-RCBO or AFDD board: what each type means for your home, why the SPD requirement matters under Amendment 3, and what questions to ask before you accept a quote.
Read the guideWire a PIR occupancy switch
Choosing the right wall or ceiling PIR switch, confirming neutral is available, identifying the three conductors and setting the time-delay and lux controls once fitted.
Read the guideUnderstand UK earthing systems (TT, TN-S and TN-C-S)
How the three UK earthing types differ, what each one means for RCD protection and consumer unit work, and how to identify which system your home has.
Read the guideReplace a 45A shower pull cord isolator switch
A like-for-like swap of the ceiling pull cord switch above your electric shower: isolating safely, photographing terminals, wiring the new switch and testing before restoring power.
Read the guideWire a gas boiler electrical supply
The fused spur, programmer wiring and zone valve connections that make up a boiler's electrical supply -- what each part does and where the line falls between DIY and Part P work.
Read the guideFault-find a tripping MCB
How to tell overload from short circuit, the step-by-step unplug test that isolates a faulty appliance, how to calculate whether your circuit is overloaded, and when to stop and call an electrician.
Read the guideFit an RCD socket outlet
When an RCD socket beats a standard 13A socket, back box depth explained, how to wire the In and Out terminals correctly, and the test button check that confirms it is working.
Read the guideInstall a solar PV diverter (Solar iBoost)
What a solar diverter does, how the CT clamp detects surplus generation, what an electrician must connect, and how to confirm the system is diverting correctly once commissioned.
Read the guideUnderstand old UK wiring colours (pre-2004)
What red, black and green mean in old UK cable, how they map to current brown and blue, and what to check before working on any pre-2004 circuit.
Read the guideFault-find a dead socket outlet
A step-by-step method from consumer unit check through to opening the socket - finding whether the fault is a tripped MCB, a loose terminal, or a blown fused spur.
Read the guideLabel your consumer unit correctly
What labels BS 7671 requires, how to identify circuits safely with a plug-in tester, and how to produce a circuit schedule for inside the consumer unit door.
Read the guidePlan the electrics for a home extension
Socket and light positions, cable routes, Part P notification, and what first and second fix involves - a planning guide for homeowners adding an extension.
Read the guideUnderstand EICR condition codes
What C1, C2, C3 and FI actually mean on your electrical inspection report, which codes make a report unsatisfactory, and what action each one requires.
Read the guideAdd a spur from a ceiling rose
How to take a new cable from an existing ceiling rose to power an extractor fan or add a second light, including terminal identification and the right cable choice.
Read the guideFit a ceiling fan with light
From checking the ceiling box is fan-rated to wiring live, neutral and earth, with guidance on remote-control receivers and separate fan and light control.
Read the guideInstall a home electric hook-up point
Everything about fitting a 16 A commando socket for a caravan or motorhome: cable sizing, RCD protection requirements and the Part P rules that apply.
Read the guideInstall and test an earth electrode
How a copper-clad earth rod is driven in, connected and tested in a TT installation, and what the loop impedance reading tells you about whether the earthing is sound.
Read the guideWire an immersion heater circuit
From MCB sizing and 2.5 mm² cable run to double-pole switch wiring and connections at the heater head: the complete UK guide to a dedicated immersion heater circuit.
Read the guideFit a carbon monoxide alarm
Where to position a CO alarm under BS EN 50292, what the 2022 rental legislation requires, battery versus mains-connected types, and when to call an electrician.
Read the guideInstall an electric panel radiator
Plug-in versus hardwired options, FCU sizing, bracket fixing, cable routing, and the Part P question answered for dedicated circuits above 2 kW.
Read the guideRun cable in PVC conduit
When conduit is the right choice for an exposed cable run, how to choose the right diameter, fix clips at correct spacings, form bends and draw cable without damaging the insulation.
Read the guideWire a kitchen cooker hood
Connecting a kitchen extractor hood safely: the plug-in versus FCU spur decision, choosing the right fuse, staying outside the gas appliance zone, and testing every function before finishing.
Read the guideReplace fluorescent with LED batten
Swapping a fluorescent strip fitting for an LED batten: isolating safely, identifying the cable colours, making off the terminal block and the check that confirms the circuit is ready to use.
Read the guideWire a garden room or summer house
Armoured cable burial depth, sub-consumer unit requirements, earthing arrangement (PME or TT), Part P notification and what the electrician needs to certify before the supply is switched on.
Read the guideWhat to expect from an ASHP electrical installation
Supply cable sizing for a heat pump, isolator switch requirements, wiring centre connections and the certification the installer must hand over - explained for homeowners.
Read the guideWire a hot tub electrical supply
Understanding the PME earthing question, sizing the dedicated circuit, installing an outdoor isolator and 30 mA RCD protection in line with BS 7671.
Read the guideFit a surge protection device (SPD)
Installing a Type 2 SPD in a domestic consumer unit - choosing between TN-C-S and TT earthing types, DIN rail mounting, wiring sequence and reading the status indicator on completion.
Read the guideWire an LED illuminated bathroom mirror
Bathroom zone rules under BS 7671, FCU positioning outside Zone 2, choosing the right fuse rating for a demister mirror, and the wiring sequence from ring circuit to mirror supply.
Read the guideWire a Ring wired video doorbell
Transformer voltage checks for Ring models, bracket fitting, bell-wire connections and the clear line between low-voltage DIY work and the Part P mains side of the transformer.
Read the guideInstall armoured cable (SWA) underground
When and why to use steel wire armoured cable, correct burial depth under BS 7671, SWA gland termination, armouring as the CPC, and Part P notification for outbuilding circuits.
Read the guideWire an air conditioning isolator switch
BS 7671 local isolation requirements for domestic split-system air con units, rotary isolator ratings, safe isolation procedure and correct conductor connections explained.
Read the guideFault-finding dead conservatory sockets
A systematic method for tracing why conservatory sockets have lost power - consumer unit checks, FCU inspection, socket-by-socket testing, and the moisture-related faults most common in UK conservatories.
Read the guideUnderstand BS 7671 Amendment 4 (2026)
What changed in the April 2026 update to the UK wiring regulations, why Section 745 matters if you have battery storage, and what the six-month transition means for homeowners getting electrical work done.
Read the guideSelect the right cable size for UK domestic wiring
Design current, MCB rating, the On Site Guide method, correction factors for grouped or insulated cables, and the standard sizes used in east Kent homes - explained plainly.
Read the guideWire a lighting circuit using junction boxes
The joint box method for lighting circuits - mounting an accessible box, connecting the supply, wiring the switch drop and fitting, and the BS 7671 accessibility rule that every junction must meet.
Read the guideWhat to expect from a consumer unit upgrade
From the initial EICR through to certification: what the electrician does at each stage, what 18th Edition requires, and the three documents you must receive at the end.
Read the guideTest earth fault loop impedance (Zs)
What Zs measures, how to take a live reading with a multifunction tester, the BS 7671 maximum values by device type, and what a high reading means for the installation.
Read the guideWire a smart thermostat (Hive or Nest)
Combi boiler, S-plan and Y-plan installations explained: safe isolation, photographing existing wiring, connecting the receiver, and what to do when the boiler does not fire after commissioning.
Read the guideCarry out safe isolation
The correct BS 7671 procedure for proving a single-phase circuit dead before starting any electrical work - live indicator test, MCB lock-off, dead test, and the second live check that confirms it all.
Read the guideRing and radial socket circuits explained
What makes a ring final circuit different from a radial, how to tell which type your home has, why the UK settled on ring mains, and what changes when you add new sockets.
Read the guideWire an S-plan central heating system
The five components explained, how the programmer, room thermostat, cylinder stat and zone valves connect at the wiring centre, and the Part P rules that apply to central heating electrical work.
Read the guideChase walls and run cable
Safe zone rules under BS 7671, choosing the right cutting tool for the wall type, cable protection requirements and how to photograph the runs before making good.
Read the guideWire a media wall
Planning socket positions, chasing recesses, separating mains from data cables and testing every outlet before the wall is boarded up for the last time.
Read the guideInstall garden lighting
Choosing the right supply route, IP ratings for outdoor fittings, SWA burial depth, weatherproof connections and RCD protection rules for every outdoor circuit.
Read the guideFault-find a lighting circuit
A systematic method for diagnosing why a lighting circuit has stopped working or started flickering - consumer unit checks, testing at the switch and rose, working along loop-in circuits, and the point at which to hand over to an electrician.
Read the guideWire an electric towel rail
Bathroom zone rules under BS 7671, fused connection unit selection, cable sizing, connecting the element, earthing the rail body, and the Part P notification question answered honestly.
Read the guideTest insulation resistance
What the test checks, the 500 V DC MFT procedure, the three standard measurements, minimum pass readings under BS 7671 Table 64, and why a healthy circuit reads far above the minimum.
Read the guideHome battery storage: what to know before buying
Capacity vs usable energy, MCS certification, DNO notification, smart tariff compatibility, 0% VAT rules, and the questions every quote must answer before you commit.
Read the guideFind an electrical short circuit
How to read the symptom, unplug and test methodically, use the half-and-half split to narrow it down, check with a multimeter, and decide when to call an electrician.
Read the guideWire a garage consumer unit
Metal enclosure requirements, MCB ratings, mandatory 30mA RCD protection on every circuit, labelling and the pre-energisation tests that Part P certification requires.
Read the guideUpgrade a single socket to a double
Back box depth explained, fitting a deeper or surface-mount box, transferring the conductors correctly and testing both outlets - the details that make the difference between a sound job and a fault.
Read the guideInstall an outdoor wall light
IP rating selection, weatherproofing the wall entry, wiring L N E on a fixed fitting, earthing metal bodies and the Part P rules on new cable runs explained plainly.
Read the guideFit a new socket outlet
Back box selection for masonry or plasterboard, correct conductor strip length, proper earth sleeving, metal back box earth tails and how to test with a socket tester before use.
Read the guideLoft conversion electrical requirements
New circuits, Part P notification, mains smoke alarms and the fire hoods that go above every downlight -- what a loft conversion needs from an electrician and why planning it early saves money.
Read the guideUnderstand TT earthing in UK homes
What a TT earthing system is, how it differs from TN-C-S (PME), how to identify which type your home has, and why TT properties need an earth rod and full RCD protection on every circuit.
Read the guideWhat to expect from a house rewire
The five stages of a full UK house rewire from initial survey to Part P certificate -- timescales, disruption, what the plasterer needs to finish before second fix, and the paperwork to ask for at the end.
Read the guideReplace a bathroom pull cord switch
When pull cord switches fail, zone rules under BS 7671, 6A vs 45A ratings, safe isolation and a step-by-step swap - plus when a new position means calling an electrician.
Read the guideRun cable in surface trunking
When to use PVC surface trunking instead of chasing walls, cable fill limits under BS 7671, fixing the base, making joints in accessible enclosures and what makes a tidy compliant run.
Read the guideWire an intermediate light switch
Three-switch lighting circuits for stairs and landings - the four-terminal switch body, three-core cable colours, making the connections and testing all switching positions.
Read the guideUnderstand arc fault detection devices
What AFDDs are, how they differ from RCDs, what BS 7671 Amendment 2 says about socket circuits in UK homes, and what to expect when one is fitted in your consumer unit.
Read the guideUse a WagoBox maintenance enclosure
When to use a WagoBox or maintenance-free junction enclosure, how to select the right Wago connector size, the correct strip length, and the BS 7671 rules on accessible electrical joints.
Read the guideWire electric underfloor heating
Supply circuit sizing, mandatory 30 mA RCD protection under BS 7671 Section 753, thermostat wiring, floor sensor installation, and the cold resistance test you must do before tiling.
Read the guideUnderstand surge protection devices
What SPDs do, why 18th edition Amendment 2 made them the default for new UK work, the three types, and what to check when getting quotes for a consumer unit upgrade.
Read the guideUnderstand bathroom electrical zones
The BS 7671 zone system explained - what equipment can go where, IP ratings, heated towel rail connections, shaver sockets, and the Part P rules for bathroom electrical work.
Read the guideHardwire LED tape lighting
Choosing the right driver and tape, planning the cable route, fitting a fused connection unit, and connecting the driver to a mains circuit safely.
Read the guideWhat to expect from a solar battery installation
MCS certification, G98 and G99 DNO notification, PAS 63100 fire safety, and what a proper home battery installation involves from first quote to final sign-off.
Read the guideUnderstand Economy 7 storage heaters
How the dedicated overnight circuit works, setting the input and output controls correctly, and what common faults mean before reaching for the phone.
Read the guideExtend a ring final circuit
Adding sockets by extending the ring rather than adding a spur: confirming the ring is healthy, breaking in correctly, looping back, and testing before restoring power.
Read the guideUnderstand your lighting circuit
Loop-in wiring, junction boxes and switched lives explained - so you know what you are looking at before touching a ceiling rose, switch or light fitting.
Read the guideInstall a Zappi EV charger
What a MyEnergi Zappi installation involves: consumer unit assessment, cable sizing, RCBO selection, solar CT clamp, and commissioning the app.
Read the guideFit an RCBO
How to swap a plain MCB for an RCBO to give a single circuit its own RCD protection - isolating the board, handling the neutral bar correctly, and testing the device.
Read the guideFit a ceiling light fitting
How to replace a pendant ceiling rose with a semi-flush or direct-wired fitting - identifying your wiring arrangement, connecting L N E, and the one check that matters for metal fittings.
Read the guideTest a ring final circuit
What continuity, insulation resistance and polarity tests involve for a UK socket ring, what readings a healthy circuit gives, and what a homeowner can check themselves before calling an electrician.
Read the guideWire a UK plug
Correct terminal positions for a BS 1363 13A plug, how to choose the right fuse, and the wiring mistake that can make an appliance dangerous even when it appears to work.
Read the guideWire a doorbell transformer
Band 1 and Band 2 separation under BS 7671, running bell wire to the push and chime, and the clear line between DIY bell-wire work and the mains connection that needs an electrician.
Read the guideFit a bathroom shaver socket
Why standard 13A sockets are banned in bathrooms, how the isolating transformer works, zone rules under BS 7671 Section 701, and when a new cable run becomes Part P notifiable work.
Read the guideFit a USB charging socket
Choosing between USB-A and USB-C, why back box depth (25 mm vs 35 mm) is the first thing to check, transferring L N E connections, and testing the USB ports after power is restored.
Read the guidePower a shed or outbuilding
SWA armoured cable, the earthing assessment that requires test equipment, RCD protection requirements, and why getting it right matters when you come to sell.
Read the guideFit a PIR security light
IP ratings, wiring L N E correctly, understanding the dusk sensor and sensitivity dials, and when a new cable run steps into Part P territory.
Read the guideWire a cooker circuit
Cable sizing, the cooker connection unit, the diversity rule explained, and the clear line between connecting a new cooker yourself and Part P work that needs an electrician.
Read the guideWire a two-way lighting circuit
Common, L1 and L2 terminals explained, three-core cable colours, and the checks that confirm both switching positions are safe before you put the covers back.
Read the guideWire a fused connection unit
How to identify the Line In and Line Out terminals, choose the right fuse, and connect a switched or unswitched FCU to a fixed appliance safely.
Read the guideCheck main bonding conductors
What the green and yellow cable on your gas and water pipes does, what to look for during a visual inspection, and when missing bonding becomes a C2 on an EICR.
Read the guideWire a shower circuit
Cable sizing, RCBO selection, routing through ceiling voids, and the Part P notification requirement - what a new electric shower circuit involves from start to certificate.
Read the guideBathroom supplementary bonding
What supplementary equipotential bonding is, when BS 7671 allows it to be omitted with RCD protection, and how to test existing bonds with a multimeter.
Read the guideTest an immersion heater
How to diagnose a failed element or thermostat with a multimeter, what the resistance readings should be, and when replacing the part is a job for an electrician.
Read the guideWire a bathroom extractor fan
Bathroom zones under BS 7671, switching options including light-switch trigger and humidistat, over-run timer setup, and the IP rating your fan must carry.
Read the guideInstall an outdoor socket
Choosing an IP-rated weatherproof socket, RCD protection requirements, cable routing and conduit, drilling through the wall, and the Part P question answered honestly.
Read the guideInstall LED downlights
Marking out, cutting apertures, fire hoods in timber-joist ceilings, running the wiring, connecting the fittings, and what makes bathroom downlights different.
Read the guideHome EV charger installation
What to expect when getting a 7.4 kW charger fitted: consumer unit checks, CT clamp load-balancing, OZEV paperwork and how to spot a quote that is cutting corners.
Read the guideFault-finding a tripping RCD
A systematic method for tracking down why an RCD or RCBO keeps tripping, from unplugging appliances to the half-and-half split - and when to hand over to an electrician.
Read the guideFit mains smoke alarms
BS 5839-6 explained, alarm positions on each floor, wiring options for hardwired and radio-interlinked systems, and the Part P question answered plainly.
Read the guideFit a dimmer switch
Check lamp compatibility, choose the right dimmer type, isolate properly and make the connections.
Read the guideWire a ceiling rose
Loop-in wiring explained, switched live identified, new rose fitted and tested.
Read the guideWhat to expect from an EICR
What an electrician inspects and tests, what the C1/C2/C3 codes mean, and what to do next.
Read the guideAdd a spur socket
How to safely extend a ring main with a spur, including load checks and when a spur is not the right answer.
Read the guideUnderstand your consumer unit
What each device in the board does, what modern RCBO protection looks like, and why older boards get flagged on EICRs.
Read the guideReplace a plug socket
A like-for-like socket swap done safely: isolate, photograph, transfer wires and check the earth.
Read the guideChange a light switch
Safe isolation, identifying one-way and two-way configurations, and the earth check that matters.
Read the guideTest an RCD
How to press the test button correctly, what a healthy trip response looks like, and what to do if it does not trip.
Read the guideReset a tripped breaker
How to identify a tripped MCB or RCD and reset it safely, and when not to keep trying.
Read the guide