General Contractors
Estimating, plan review, assigned lead electricians and organized field execution for professionally managed construction.
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415-682-7582Chasov Electrical, Voice & Data — San Francisco electrical contractor
Electrical expertise for the buildings that make
San Francisco.
Residential precision. Multifamily experience. Commercial capacity. One established team for projects from repairs and remodels to complex service upgrades.
26years serving
the Bay Area
the Bay Area
2000Established
1,700+SF electrical permits
18 yearsDiamond Certified
785830CSLB C-10
Electrical work across San Francisco
1,395 selected completed electrical permits · 11 work categories
Part of our 1,700+ San Francisco electrical permits.
- Kitchen Remodels
- Bathroom Remodels
- Other Remodels & Additions
- Service Upgrades
- Panel Replacement
- Rewiring
- Condo Conversions
- 3R Report Corrections
- Commercial Work
- Circuits Lighting & Equipment
- Repairs & Other
Split-color dots show every category recorded at that location, not proportions. Repeated permits share a dot. Categories follow the permit register; mixed-scope permits count once in the overall total.
Sources: DataSF electrical permits, street centerlines and analysis neighborhoods. Snapshot: September 9, 2026. “Complete” is the electrical-permit status, not proof of whole-project completion.
Find your project
The full range of electrical work.
Whether you need one electrical repair or are planning work throughout an entire building, start with the project type closest to your needs.
Electrical Service Upgrades
200A residential upgrades and larger multifamily, multi-meter and commercial services.
Explore this serviceCommercial & Tenant Improvements
Electrical construction, lighting, power and controls for restaurants, retail, offices, medical and showroom spaces.
Explore this serviceLights, Switches & Outlets
Recessed lights, fixtures, dimmers, lighting controls, switches and electrical outlets for existing homes and remodels.
Explore this serviceHome Electrification
New circuits and capacity planning for electric ranges, heat pumps, water heaters and gradual home electrification.
Explore this serviceRemodeling & Additions
Electrical work for kitchen, bathroom, apartment, whole-house remodels and residential additions.
Explore this servicePanel Replacement
Replacement of obsolete, damaged and insurer-flagged fuse panels and electrical panels.
Explore this serviceKnob & Tube Rewiring
Investigation and replacement of old knob-and-tube wiring in San Francisco homes and multifamily buildings.
Explore this serviceTroubleshooting & Repairs
Diagnosis and repair of power outages, dead outlets, lighting problems, switches and tripping circuit breakers.
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Electrical service upgrades
The right service for your building’s next chapter.
Replacing obsolete equipment or planning for more electrical capacity? We handle service upgrades for San Francisco homes, multifamily buildings and commercial properties.
- 200A residential service upgrades
- Larger services and multi-meter equipment
- PG&E applications and project coordination
For general contractors
An electrical team you can count on.
We work with San Francisco general contractors on residential remodels, multifamily buildings and commercial spaces. Our electricians listen, explain the options and work well with your clients and designers.
Multiple crews when schedules get tight
Clear estimates and prompt change pricing
Coordination with designers and other trades
Longstanding contractor relationships
About Chasov
Technical knowledge. Practical judgment. Consistent execution.
Michael Chasov founded the company in San Francisco in 2000. Today, Chasov Electrical, Voice & Data operates multiple crews across residential, multifamily and commercial projects.
Many members of the team immigrated from Russia and other former Soviet republics, and many hold electrical-engineering backgrounds. That technical foundation shapes how we diagnose problems, explain options and execute complex work.
Read 335 verified customer surveys“They were good at coming up with solutions for problems that other contractors couldn't come up with.
Verified Diamond Certified customer
Start a conversation
Tell us what you're planning.
Send a short description of your project. We'll follow up to discuss the scope and arrange a walkthrough when appropriate.