Works Plumbing has served San Francisco homeowners since 2009 with full-service residential plumbing built on fast response, transparent pricing, and repairs that are documented and backed by a clear warranty. We hold a California Contractors State License, carry full general liability and workers compensation insurance, and answer calls 24 hours a day, 7 days a week for emergency service.
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THIS MONTH’S BEST DEAL
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$75 OFF Any Plumbing Repair Over $500
One-time use. Combine with our 24/7 emergency service and pay only when the job is done. Mention this offer when you book.
We are licensed and insured (CSLB #982663) and family owned and operated since 2009. Every job is priced before work starts. Schedule a San Francisco plumber for same-day service, or reach us at any hour for an emergency.
At a Glance
Same-day service and 24/7 emergency repair across San Francisco, including the Richmond and Sunset districts.
Upfront pricing and free estimates. You approve the price first.
San Francisco runs a combined sewer, so storm water and sewage share the same pipes.
The SFPUC Floodwater Grant can reimburse owners of flooded properties for backwater valves and sump pumps.
Plumbing services we provide in San Francisco
Here is how our San Francisco work breaks down, group by group, with a link to the full page for each service.
Leaks and supply piping. We find hidden leaks with acoustic, thermal and pressure testing, then repair the failed section or replace the line from the meter. In a compact house with one bathroom, we plan the work so the household is without water for as short a stretch as we can manage.
Gas. Our gas line repair covers leaks, new branches for ranges and dryers, and safe capping of lines left by removed appliances.
Storm water. For garages and lower floors that take on water in heavy rain, we repair and install sump pumps in San Francisco with a legal discharge route.
Emergency Plumber in San Francisco, CA, Any Hour
We take emergency calls 24/7, nights, weekends, and holidays included. Treat these as emergencies:
A burst or split pipe
A water heater leaking from the tank
Sewage rising in a tub, shower, or floor drain
A gas smell near an appliance or line
While our plumber is on the way:
Turn off the water at the fixture valve or the main shutoff.
Stay clear of outlets and cords near standing water.
Stop flushing and running water if a drain is backing up.
Leave the building if you smell gas, and report it from outside.
A sewer backup here can start in the part of the lateral the city looks after. SFPUC says the owner owns the whole lateral, but it inspects and, under most circumstances, repairs the lower section from the curb to the main after a 311 report. We find which side the problem is on before you pay for a fix. Our page on sewer line repair in San Francisco explains that split.
How Your Plumber in San Francisco, CA Works a Repair
Every repair follows the same five steps, from a dripping valve to a split pipe.
Listen first. You tell us what you saw, where, and when it began.
Trace the source. Water often appears far from the leak, so we follow it back.
Quote before work. You get an upfront price and decide.
Fix and test. We repair the fault and run the line to confirm it holds.
Explain the result. You hear what failed and what to watch for.
The Department of Building Inspection requires a plumbing permit before pipes are cut into or replaced, especially concealed or buried pipes. The San Francisco Plumbing Code lists the exemptions. We confirm whether your repair needs a permit and handle the permit and inspection when it does.
When a drain or sewer line needs a camera, the recording is available on request.
Some sewer work leaves your lot. A lateral installed in the public right of way, from the trap to the City main, needs a Public Works Side Sewer Permit, and the City limits who can hold it by license class. We coordinate that street-side side sewer work with a contractor holding the class the City requires.
San Francisco Water and Older Service Lines
Most of the city’s water comes from Hetch Hetchy Reservoir. SFPUC’s 2025 water quality report says it supplies up to 85 percent of deliveries. The treated water is soft, with hardness averaging 62 ppm in 2025 and pH averaging 9.3.
With water that soft, we look past mineral scale when a faucet or valve fails. SFPUC disinfects with chloramine, so when we replace washers, seals, and flappers, we use chloramine-resistant parts when they are available.
Service lines are the other local factor. SFPUC removed all known lead service lines in the 1980s, and its plumbers have never observed a customer-owned lead service line. It still recommends replacing some customer-owned galvanized lines that may have been connected to old lead pipes. If low pressure or a yard leak traces back to that pipe, see our page on water line repair in San Francisco.
Richmond District and Sunset District Plumber
Our Outer Richmond location keeps us close to homes on both sides of Golden Gate Park. We work as a Richmond District plumber and a Sunset District plumber every day, and we cover Parkside, Golden Gate Heights, Stonestown, and the rest of the city.
Much of the Sunset was built between 1925 and 1950 on former sand dunes, according to SF Planning. We do not assume what is inside a wall from the age of a house. We open, test, and confirm before we recommend a repair.
Why San Francisco Homeowners Choose Works Plumbing
A staffed San Francisco location in the Outer Richmond
Licensed and insured, family owned and operated since 2009
Upfront pricing and free estimates before any work begins
Same-day service and 24/7 emergency repair citywide
Works Plumbing repairs leaks, clogs, broken pipes, and storm backups across San Francisco with upfront pricing, same-day service, and 24/7 emergency repair. Request service from your San Francisco plumber and we will get your home working again.
Why San Francisco homeowners call Works
Stocked trucks already in the area, so we arrive fast
Upfront, flat-rate pricing approved before any work
Expert plumbing in Pacifica in Pacifica & the Peninsula
From Pacifica bungalows to hillside homes, our licensed techs handle every plumbing job with upfront pricing and true 24/7 response. Book a free estimate any time, no obligation.
How the job goes
We diagnose the issue and show you a flat price upfront.
You approve it, then our tech gets to work from a fully-stocked truck.
We test the fix twice and leave your space cleaner than we found it.
Our crew at the Golden Gate Bridge
Pro tip
Snap a photo of the problem before you call, it helps us bring the right parts on the first visit.
See how we handle it:
Ready to get it fixed?
Upfront pricing, licensed techs, and a real human on the phone 24/7 across the Peninsula.
Frequently Asked Questions About Plumbers in San Francisco, CA
How do I know if my San Francisco home is in the flood risk zone?
Check the SFPUC 100-Year Storm Flood Risk Map. It covers stormwater flooding only, not Bay, ocean, or sea level rise flooding. Since 2019, sellers and landlords must disclose when a property is in the zone, so buyers and tenants should see it in their paperwork.
Will the SFPUC help pay for a backwater valve or sump pump?
The SFPUC Floodwater Grant offers up to $100,000 to owners whose property flooded from the combined sewer system or the public right of way. It pays by reimbursement, and work done before a signed agreement is not covered. Apply first, then we schedule the installation.
Who fixes my sewer lateral in San Francisco?
You own the whole lateral. The upper lateral, from the building to the curb, is yours to repair. For the lower lateral, from the curb to the main, report the problem through 311, and SFPUC inspects it and repairs it under most circumstances.
Do plumbing repairs in San Francisco need a permit?
The Department of Building Inspection requires a permit before plumbing pipes are cut into or replaced, with exemptions listed in the San Francisco Plumbing Code. We confirm what your job needs and pull the permit when one applies.
Is San Francisco water hard on my fixtures?
No, it is soft. SFPUC reported average hardness of 62 ppm in 2025. The water is chloraminated, so we use chloramine-resistant washers, seals, and flappers when they are available.
Does Works Plumbing handle emergency plumbing calls at night and on weekends in San Francisco? Yes. Works Plumbing provides 24 hour emergency service every day of the week. Our emergency plumbing team responds to burst pipes, sewer backups, active leaks, and gas odors. Call 415-873-0307 at any hour and a live staff member will answer and dispatch a technician to your San Francisco address.
We’ve earned our reputation one happy homeowner at a time.
“Thank you again for another job well done, and thank you for responding right away. I will continue to recommend Works Plumbing because they respond right away and get the job done efficiently.”
DK
David K.
San Mateo Google Review
Google reviews
Yelp reviews
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Google rated. CSLB #982663.
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