City and County of San Francisco
Plumber in San Francisco, CA
San Francisco's dense Victorian and Edwardian housing, hills and earthquake risk make its plumbing unusual. Many buildings are more than 100 years old, and sewer laterals often run under sidewalks to mains in the street.
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San Francisco homes and their plumbing
Victorians and Edwardians in the Mission, Noe Valley and Pacific Heights have cast-iron and older drains, often with plumbing added over decades. The Sunset and Richmond have 1920s–1950s row homes with garages at street level.
Water and sewer
The San Francisco Public Utilities Commission (SFPUC) supplies Hetch Hetchy water and runs the city's combined sewer system.
Permits
Plumbing permits are issued by the San Francisco Department of Building Inspection (DBI).
Local plumbing issues in San Francisco
Owner-responsible laterals
Property owners are responsible for the sewer lateral to the main, including under the sidewalk, which is often clay or cast iron in older homes.
Combined sewer system
San Francisco's combined sewers can back up into low basements and garages during heavy rain.
Seismic requirements
Water heaters must be strapped, and gas shutoff valves are common upgrades.
Hills and water pressure
Pressure varies a lot across San Francisco's hills, and some homes need pressure reducing valves or booster pumps to protect fixtures and water heaters.
Find a plumber near you in San Francisco
Plumbers on Thawline work across San Francisco and City and County of San Francisco, including Mission, Sunset, Richmond District, Noe Valley, Bernal Heights, Pacific Heights. Check your ZIP code below; if it's covered, one call reaches a licensed plumber who works in your neighborhood.
San Francisco ZIP codes: 94102 · 94103 · 94104 · 94105 · 94107 · 94108
Common plumbing calls in San Francisco
Also available in San Francisco: emergency plumbing and every plumbing service.
San Francisco at a glance
- County
- City and County of San Francisco
- Neighborhoods
- Mission, Sunset, Richmond District, Noe Valley, Bernal Heights, Pacific Heights
- ZIP codes
- 94102, 94103, 94104, 94105, 94107, 94108
- Water provider
- The San Francisco Public Utilities Commission (SFPUC) supplies Hetch Hetchy water and runs the city's combined sewer system..
- Availability
- Call now to check plumber availability
- Common calls
- Sewer line repair, Sewer camera inspection, Drain cleaning
San Francisco plumbing questions
Who provides water in San Francisco?
Who issues plumbing permits in San Francisco?
Is there a plumber near me in San Francisco?
Which San Francisco ZIP codes are covered?
Guides for San Francisco homeowners
Nearby towns
Plumbing problem in San Francisco?
Tell us what's going on and your ZIP code. You'll be connected with a licensed plumber who serves your area.
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