Many California homes built before 1970 still have original wiring. Some of it is fine. Some of it is a fire risk. Here's how to tell the difference and what Whole House Rewiring involves.
Wiring types that raise concern
- Knob and tube (pre-1950): no ground, brittle insulation, can't be covered by insulation.
- Aluminum branch wiring (1965–1973): prone to loosening and overheating at connections.
- Cloth-insulated wiring: insulation crumbles with age.
Signs you need rewiring
Two-prong outlets everywhere, frequent tripping, flickering, discolored outlets, or an insurance company asking questions. Start with an electrical inspection in Berkeley or your city.
The process
We map circuits, plan new runs, fish new cable through walls, set new boxes, install AFCI/GFCI protection, and often pair the job with an Electrical Panel Upgrade. Access holes are kept small and patched.
How long it takes
Three to ten working days for most homes. Power stays on to key rooms.
Cost factors
Square footage, number of circuits, attic and crawlspace access, and finish level. Get a written quote from your local team in Pasadena, Alameda, San Diego or any California city.