What homeowners usually notice
- A breaker that never tripped before now trips regularly.
- Outlets in rooms next to the remodel lost power.
- New recessed lights or fixtures flicker, buzz or go out.
- A switch or outlet near the new work feels warm or crackles.
What to do right now
- Write down which rooms and devices are affected and when the trouble started.
- Reset any tripped breaker or GFCI once, and check GFCIs in nearby rooms.
- Contact the contractor who did the work and describe what you are seeing.
- Stop using any device that is warm, sparking or smells hot.
Likely causes
Cable damaged behind new walls
A drywall screw or trim nail through a cable can cause trips, dead outlets or intermittent power, and the damage is hidden by the new finish.
Connections disturbed during demolition
Pulling out cabinets or walls can loosen connections in boxes that stayed in place, especially in older homes with brittle insulation on the wiring.
Overloaded existing circuits
New lighting, an added bathroom fan or a kitchen appliance may have been tied onto an existing circuit instead of getting its own.
Incomplete or unpermitted work
Splices hidden in walls without a box, reused old wire or skipped connections cause problems that show up weeks later.
Incompatible dimmers and new lighting
New LED fixtures on old dimmers can flicker or buzz. That is often a matching problem, not a wiring fault.
Safe checks you can make
- Note whether problems are limited to the remodeled room or spread to rooms sharing the same circuit.
- Look for new screw heads or nail holes near the path where a cable would run to an affected outlet.
- Check whether new fixtures are on dimmers and whether the dimmers are rated for LEDs.
- Find out whether permits were pulled and inspections passed.
Leave outlet covers, switch plates and the panel cover in place. Noting what you see and hear is enough; testing inside boxes belongs to an electrician.
Is this something you can fix yourself?
Some post-remodel problems are simple. A GFCI in the new bathroom or kitchen may be protecting outlets elsewhere, and resetting it can bring them back. Flicker from new LED lights on an older dimmer may stop once the dimmer is swapped for a compatible one by whoever installed the lights. Beyond that, work behind new walls is not a homeowner job. Resist the urge to cut open fresh drywall or tighten wires yourself; call the contractor first, and bring in a licensed electrician if they cannot find it or the work was done without permits.
When professional help is the right call
- Breakers trip in rooms that were never touched by the remodel.
- An outlet or switch plate near the new work is warm or discolored.
- Power comes and goes as doors close or people walk nearby.
- The work was done without permits or by someone who is not a licensed electrician.
- The contractor's repairs have not stopped the problem.
Safety first. A cable damaged by a screw can overheat inside a finished wall with no warning other than a trip or a faint smell. If you smell burning, hear crackling in a wall or see scorching, turn that circuit off and call an electrician. If there is smoke or flame, get out and call 911.
What an electrician typically checks
An electrician will trace the affected circuits, test for damaged cable, and check connections in boxes near the renovation. They will also check that new loads are on appropriate circuits and that kitchens, baths and laundry areas have the GFCI and AFCI protection current code expects.
In older Birmingham homes, a remodel often uncovers wiring that was already near the end of its life. The electrician may recommend remodel electrical work done to current standards, or rewiring for sections that cannot be safely reused. The page on new home electrical problems covers related ground.
Keeping it from coming back
Plan the electrical scope before walls close, ask for permits and inspections, and make sure new appliances and lighting get the circuits they need. Walk each room before paying the final bill, testing every outlet and switch.