Electrical repair guides

You can safely find and fix an overloaded circuit yourself by unplugging and moving appliances. If the breaker trips instantly, feels hot, buzzes or smells of burning, stop and call a licensed electrician.

Finding the cause (a wet outlet, a faulty appliance, a tripped breaker) is safe to do yourself. Replacing a GFCI outlet is only for confident DIYers with the power off and verified; RCDs in the consumer unit are electrician work.

Most dead outlets are fixed without tools by resetting a breaker or GFCI or flipping a wall switch. Opening the outlet is only safe with the circuit switched off and verified dead, and any sign of burnt or loose wiring means calling an electrician.

Replacing a standard single-pole switch is a manageable DIY job if you switch off the breaker and verify the wires are dead with a tested voltage tester. Three-way, four-way and smart switches are trickier; call an electrician if the wiring doesn’t match what you expect.

Flicker in one light is usually a bulb, dimmer or socket issue you can fix safely. Flicker across the whole house, or lights dimming when big appliances start, can mean a loose neutral or supply fault: call an electrician or your utility.

Swapping a like-for-like ceiling or wall light is a common DIY job if you switch off the breaker, verify dead with a tester and use a steady ladder. Heavy fixtures, fans, aluminum or cloth wiring and any damaged wire are jobs for an electrician.

Tightening screws and balancing blades is a safe DIY job with the fan switched off at the breaker and a steady ladder. If the mounting box or bracket is loose, or the fan isn’t on a fan-rated box, call an electrician before using it again.

Buttons, batteries and chime wiring on low-voltage doorbells are safe to work on. The doorbell transformer is usually connected to mains power, so switch off the breaker before touching it, and call an electrician if its mains wiring needs work.

Yes. Replacing a battery, resetting or cleaning a smoke alarm is a safe DIY job. Never remove the battery just to silence it, and treat a full alarm (loud, continuous) as a real fire until you know otherwise.

Tightening a loose outlet with spacers, or replacing a worn outlet like-for-like, is manageable DIY with the circuit off and verified dead. If you see heat damage, scorched wires or a broken box, call an electrician.