Whole House Rewiring in California: Cost Factors, Timeline and Minimizing Wall Damage
Rewiring is the biggest electrical project a homeowner can take on, and the questions are always the same: what will it cost, how long will it take, and how much of my house will be torn up? Here are straight answers from our whole house rewiring team.
When does a home need rewiring?
Common triggers include knob and tube wiring replacement for pre-1950 homes, aluminum wiring replacement for 1965 to 1975 homes, cloth-insulated wiring that is crumbling, repeated shorts, ungrounded two-prong outlets throughout, or a major remodel that opens the walls anyway.
What drives the cost
- Square footage and number of circuits. More rooms and more devices mean more cable and labor.
- Access. Homes with attics and crawlspaces are far easier to rewire than slab homes with finished ceilings.
- Panel work. Most rewires include an electrical panel upgrade to modern capacity.
- Finish work. Drywall patching and paint are usually handled by a separate trade we can coordinate.
- Extras. Adding recessed lighting, smart switches or EV circuits during a rewire is cheaper than doing it later.
Timeline
A typical three-bedroom home takes one to two weeks. We work room by room so you can keep living in the house, and power is restored to living areas each evening.
Minimizing wall damage
Experienced electricians fish new cable through existing stud bays, use the attic and crawlspace as highways, and open only small, patchable holes near devices. Full wall removal is rare.
Is a partial rewire enough?
Sometimes. If only one wing of the home has old wiring, or only kitchen and bathroom circuits need updating, a targeted rewire plus electrical inspection of the rest can be the smart move. We will tell you honestly which approach fits.
Want a written rewiring quote for your home? Call (888) 592-6466 to schedule a walkthrough anywhere in California.