San Francisco & nearby cities
Electrical services for San Francisco homes and apartments
Panel upgrades, knob-and-tube replacement, EV chargers, heat pumps and everyday repairs — explained for the Bay Area's older buildings. Call to talk through your project with an electrical professional.
Services
Electrical services
Every service page explains common situations, what an electrician evaluates, permits, and San Francisco-specific considerations.
Electrical panel upgrades
Capacity, condition and planning for modern loads.
Fuse box to breaker conversion
Replacing fuse-based systems with a modern breaker panel.
Electrical load management
Using available capacity before upgrading service.
Knob-and-tube wiring replacement
Evaluating and replacing legacy wiring in pre-1950 homes.
Historic wiring services
Assessing older wiring systems in pre-war buildings.
Heritage home renovation
Modern capacity in Victorian and Edwardian homes.
EV charger installation
Dedicated circuits, capacity checks and permits for home charging.
Shared garage EV charging
Charging for condos and apartment buildings.
Heat pump connections
Circuits and disconnects for heat pumps and water heaters.
Induction cooking power
Dedicated 240-volt circuits for induction ranges.
Laundry power connections
Dryer circuits and laundry wiring in older buildings.
Electrical troubleshooting
Breaker trips, flickering lights and dead outlets.
Lighting control installation
Dimmers, LEDs and recessed lighting in older homes.
Apartment electrical repairs
Outlets, lighting and circuits in condos and rentals.
Multi-unit electrical upgrades
Shared infrastructure and building capacity.
Service areas
San Francisco and nearby cities
Electrical help for San Francisco and these nearby Peninsula and East Bay cities. Each page covers local housing, common electrical issues and who issues permits.
-
Daly CityPost-war tract homes, foggy coastal conditions and electrification in Daly City neighborhoods.
-
South San FranciscoOlder homes near downtown, mid-century neighborhoods and newer multifamily buildings.
-
San BrunoMid-century single-family neighborhoods and electrification planning.
-
PacificaCoastal homes, marine exposure and mid-century housing along the Pacific coast.
-
BrisbaneA small hillside city with varied homes and steep lots.
-
AlamedaVictorian-era homes, a municipal electric utility and older housing stock on the…
-
OaklandVictorians, Craftsman bungalows, hillside homes and apartment buildings across a large and…
-
BerkeleyEarly-twentieth-century brown-shingle and Craftsman homes, apartments and electrification.
Have a question about your electrical system?
Call to talk through your project — what you are seeing, what you are planning, and what kind of assessment makes sense.
Local context
Why older San Francisco homes often need electrical attention
Roughly half of San Francisco's housing units were built before 1940, according to city and Census-derived housing data. Many of those buildings have been rewired in stages over a century, so it is common to find a mix of original knob-and-tube, mid-century cloth-insulated cable and modern wiring in the same home.
The issues that come up most often are:
- Legacy wiring without a ground conductor, sometimes buried in insulation it was never designed for.
- Limited service capacity — 60- or 100-amp services sized for a different era of appliances.
- Panels and fuse boxes that are full, outdated or modified over the years.
- Small, shared spaces in flats and apartments where electrical work affects neighbors.
None of this means an older building is unsafe. It means questions are best answered by a qualified electrician who can see the actual system.
Guides
Useful guides for Bay Area residents
Plain-language explanations written for San Francisco property owners, renters and HOA boards.
Understanding Knob-and-Tube Wiring in Older San Francisco Homes
What knob-and-tube wiring is, why it is common in San Francisco, the real concerns, and how to approach evaluation and replacement.
When Does an Electrical Panel Need an Upgrade?
Signs, capacity, load calculations and alternatives — how to think about panel and service upgrades.
Planning EV Charging in a Shared Apartment Garage
Approvals, power sources, metering, load management and building-wide planning for EV charging in condos and apartments.
Electrical Capacity for Heat Pumps and Induction Ranges
How to plan electrical capacity when replacing gas heating, water heating and cooking with electric equipment.
Understanding Electrical Work in Historic Homes
How electrical work is planned in Victorian and Edwardian homes to modernize safely while protecting original features.
Electrical Load Management for Older Buildings
How load management helps older homes and multi-unit buildings add EV chargers and electric appliances within limited capacity.
Electrification
EV charging and electrification
Replacing gas appliances with electric ones — an EV charger, a heat pump, an induction range, a heat pump water heater — adds load to electrical systems that were often sized decades ago. Before committing to equipment, it helps to know:
- whether your panel has capacity and space for new circuits;
- whether load management could avoid or postpone a service upgrade;
- in shared buildings, who must approve the work and how electricity will be metered.
Heritage homes
Historic home wiring
Victorian and Edwardian homes bring specific challenges: lath-and-plaster walls, decorative ceilings, limited access between floors, and owners who want modern capacity without damaging original details. Experienced electricians plan routes through closets, attics and basements, and phase work to limit openings.
If your home is a designated landmark or in a historic district, some exterior changes may also involve review by San Francisco Planning.
Neighborhood guides
San Francisco neighborhoods
How building stock differs across the city, and what that means electrically.
-
Pacific HeightsLarge Victorian and Edwardian homes, early apartment buildings, and the electrical complexity…
-
Richmond DistrictEdwardian flats and early-twentieth-century homes in the Inner Richmond, 1920s–1940s houses farther…
-
Sunset DistrictMid-century rowhouses over garages, original small services, in-law units and electrification in…
-
Marina District1920s–1930s homes and apartment buildings on reclaimed land, seismic retrofits and multi-unit…
-
Mission DistrictVictorian and Edwardian flats, mixed-use corridors, small unit services and older multifamily…
-
Noe ValleyVictorians and Edwardians, extensive renovations and expansions, and electrification in remodeled homes.
-
CastroVictorian homes and flats in the Castro and Eureka Valley, condo conversions…
-
Bernal HeightsSmall cottages and varied homes on steep, narrow streets — with small…
Quick check
Does your electrical panel need attention?
Four quick questions, one at a time. At the end you get a practical answer: what to check, what to ask an electrician and what to prepare.
Runs entirely in your browser. Your answers are not sent anywhere or saved.
Questions
Frequently asked questions
Answers to common electrical questions from Bay Area residents.
How do I check an electrician's license in California?
Ask for the contractor's license number and look it up with the Contractors State License Board (CSLB). Electrical contractors are generally licensed under the C-10 classification. The lookup shows license status, classification and bonding.
Do I need a permit for electrical work in San Francisco?
Most electrical work beyond simple like-for-like replacements — new circuits, panel changes, EV chargers, service upgrades — requires an electrical permit from the Department of Building Inspection (DBI) and an inspection. The contractor performing the work normally pulls the permit.
Is knob-and-tube wiring dangerous?
Not automatically. Original knob-and-tube in good condition can still work, but it has no ground, was not designed to be buried in insulation and has often been modified. An electrician can assess its condition and whether partial or full replacement makes sense.
Can I add an EV charger without upgrading my panel?
Often, yes. A load calculation shows how much capacity is available. Lower-amperage charging, a load management device or circuit sharing can avoid a service upgrade in many homes.
What should I do in an electrical emergency?
If there is smoke, fire, sparking or a burning smell, leave the area and call 911. If it is safe to do so, switch off power to the affected circuit. Contact a qualified electrician once everyone is safe.
Which cities near San Francisco are covered?
Daly City, South San Francisco, San Bruno, Pacifica, Brisbane, Alameda, Oakland and Berkeley, in addition to San Francisco itself. Call to confirm availability for your address.
Talk to an electrical professional about your property
Call to discuss your situation. A professional can evaluate your home, explain options and provide a quote.