Home Rewiring · San Francisco, CA
Home Rewiring in San Francisco, CA
Many San Francisco Victorians and Edwardians still have some knob-and-tube wiring, often alongside later cloth and modern cable. Rewiring is usually done during a remodel or before adding insulation, since insulating over active knob-and-tube is a concern.
- Call now to check electrician availability in your area
- Independent, licensed electricians
- Serving Mission, Sunset, Richmond and more
What's different about home rewiring in San Francisco
Multi-unit buildings need careful planning to keep tenants' power on during the work. Plaster and lath walls, narrow lots and shared walls make cable routing slower than in newer homes. Permits come from the Department of Building Inspection, and the work must be done by a California-licensed electrical contractor.
Multi-unit buildings often have several small services and a meter bank. Electrification projects, including heat pumps, induction cooking and EV charging where there is a garage, usually start with a service and panel assessment.
- Permits in San Francisco
- Electrical permits in San Francisco are issued by the Department of Building Inspection (DBI), and work must be done by a California-licensed electrical contractor.
- Where we connect you
- 51 ZIP codes in San Francisco, including Mission, Sunset, Richmond, Noe Valley, Bernal Heights, Excelsior
Signs it's time to call
- Knob-and-tube or cloth-insulated wiring
- Two-prong outlets throughout
- Aluminum branch wiring
- Frequent tripping or warm devices
- An insurer or home inspector flagged the wiring
How the job usually goes
1. Assessment
Wiring type, condition and circuit layout are documented.
2. Plan and permit
Circuits are prioritized and the work is permitted.
3. Rewire
New cable is fished through walls and ceilings with minimal openings.
4. Inspection and patching
Rough-in and final inspections, then wall openings are closed.
Full details on home rewiring, including what you can safely check yourself.
What moves the price in San Francisco
Electricians set their own prices. Local permit fees, utility coordination and the age of the home all play a part, along with:
- Home size and number of circuits
- Access through attic, basement or crawl space
- Plaster versus drywall
- Whether the panel is upgraded at the same time
- Patching and painting scope
Stop and call an electrician if
- ✕ Do not cover knob-and-tube with insulation
- ✕ Do not splice new wire onto old wiring
Home Rewiring in San Francisco: questions
Do I need a permit for home rewiring in San Francisco?
In most cases, yes. Electrical permits in San Francisco are issued by the Department of Building Inspection (DBI), and work must be done by a California-licensed electrical contractor. The electrician normally pulls the permit and arranges the inspection.
Do I have to rewire the whole house at once?
No. Many homeowners rewire in phases, starting with kitchens, baths and bedrooms.
Is aluminum wiring dangerous?
Aluminum branch wiring can overheat at connections. Approved repairs (such as rated connectors) or replacement reduce the risk; an electrician can advise which fits.
What electrical issues are common in San Francisco homes?
Electricians in San Francisco most often see: knob-and-tube in Victorian and Edwardian buildings; small services in multi-unit flats; earthquake-related checks on panels and service equipment.
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Need home rewiring in San Francisco?
Call now, or send a request and a licensed electrician who serves your ZIP code will contact you.