New circuits vs. wiring repairs
Adding a circuit means running new cable from the panel to where power is needed, sized correctly for the load and protected by the right breaker. Kitchens, bathrooms, laundry rooms, garages and outdoor areas each have their own requirements for circuit count and GFCI/AFCI protection.
Repair work is about fixing what's already there: cable chewed by rodents in the attic, a run nicked during a remodel, splices made outside a junction box, or undersized wire feeding a big load. When problems are widespread rather than isolated, home rewiring may be the better long-term answer.
What the work typically involves
Plan the route
Decide the path from the panel, wire size, breaker type and box locations.
Run and secure cable
Fish or run cable through walls, attic or crawl space with minimal openings.
Terminate and protect
Make connections in approved boxes and add GFCI/AFCI protection where required.
Test and inspect
Test the circuit under load and arrange inspection if the work is permitted.
Common reasons homeowners call
- Dedicated circuits for microwaves, freezers or window units
- Outlets for a home office or entertainment wall
- Repairing wiring damaged by rodents in the attic
- Correcting open splices and extension-cord wiring
- Adding power to a garage, shed or workshop
Signs it is time to call an electrician
- Wires spliced with tape outside a box
- Extension cords used as permanent power
- Cable that's brittle, cracked or chewed
- Outlets that are warm or discolored
- Breakers that trip when a specific appliance runs
Safety considerations
Hidden mistakes cause fires. Wiring mistakes often aren't obvious until they overheat. Undersized wire, missing grounds and loose splices are common fire causes. New circuits typically require a permit.
What an electrician will check
- Wire gauge versus breaker size
- Box fill and approved enclosures
- Grounding continuity
- GFCI/AFCI requirements
- Panel capacity for the new circuit
Related electrical problems
Local pages for this service
Related residential services
Home Rewiring
Replacing outdated, damaged or unsafe wiring throughout a home — knob-and-tube, ungrounded or deteriorated cable.
Attic Electrical Wiring
Repairing and running wiring through attics — rodent damage, attic fans, junction box corrections and new circuits.
Electrical Outlet Installation
Adding outlets where you need them — including USB, 240-volt, outdoor, countertop and dedicated appliance outlets.
Electrical Remodeling
Electrical planning and wiring for kitchen, bathroom, basement and whole-home remodels.
Frequently asked questions
Many large appliances — microwaves, dishwashers, disposals, freezers, window AC units and space heaters — work best on dedicated circuits. The manufacturer's instructions and electrical code guide what's required.
Often. Electricians fish cable through existing cavities from the attic or crawl space and use small access holes. Some runs, like across ceiling joists, can require more patching.
Clues include mismatched cable types, splices outside boxes, cable stapled across open surfaces and outlets wired with no ground. An inspection can identify these issues.