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The 10 Best Plumbers in San Francisco (2026)
This list ranks the best plumbers in San Francisco based on Google ratings using a Bayesian approach that balances average score with review volume; the results were updated for 2026. We focused on businesses categorized as plumbers on Google and gave more weight to well-reviewed profiles so long-standing local favorites rise to the top. Plumbing needs in San Francisco range from apartment repairs to service for older houses and dense urban buildings, so customer feedback and review counts help signal reliability and experience. Use this guide as a starting point when comparing providers in the city and nearby Daly City.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Flow Masters Plumbing, Drain and Water Heater
Flow Masters Plumbing, Drain and Water Heater tops our ranking thanks to a perfect 5.0 Google rating combined with a very large review base of 712 entries, which gives it strong Bayesian support. The company name explicitly references drains and water heaters, which aligns with common plumbing needs reflected in Google’s category. High rating plus substantial review volume is why it emerges as our number one pick.
The full ranking
ZAYA Plumbing Maintenance LLC.
ZAYA Plumbing Maintenance LLC. holds a 5.0 Google rating based on 120 reviews and is listed as a Plumber in San Francisco. The review count gives it strong standing among local plumbers.
120 reviews
Red Wrench Plumbing, Inc.
Red Wrench Plumbing, Inc. is rated 5.0 on Google from 82 reviews and appears as a Plumber in San Francisco. Its rating and review total put it among the highly rated small businesses on the list.
82 reviews
Five Star Plumbing & Rooter
Showing a 5.0 Google rating with 55 reviews, Five Star Plumbing & Rooter is categorized as a Plumber in San Francisco. The name and rating suggest strong customer feedback in the city.
55 reviews
Rapidfix Plumber San Francisco
Rapidfix Plumber San Francisco carries a 5.0 Google rating from 17 reviews and is listed under the Plumber category in San Francisco. Its smaller review count is still paired with a perfect average score.
17 reviews
Flow Masters Plumbing, Drain and Water Heater
Listed twice on Google, this name appears as the top-ranked entry with a 5.0 rating from 712 reviews in Daly City, classified as a Plumber. The same name also shows up separately in San Francisco at Embarcadero Center with a 5.0 rating from 15 reviews, both entries appearing under the Plumber category.
15 reviews
Expert Plumbing Solutions
Expert Plumbing Solutions has a 5.0 rating on Google drawn from 14 reviews and is presented as a Plumber in San Francisco. The listing shows solid ratings despite a modest review tally.
14 reviews
Discount Plumbing Rooter Services
Discount Plumbing Rooter Services is rated 4.9 on Google with 3,226 reviews and appears as a Plumber in Daly City. Its very large number of reviews gives that 4.9 score significant weight in our ranking.
3226 reviews
Magic Plumbing Heating & Cooling
Magic Plumbing Heating & Cooling holds a 4.9 Google rating based on 1,931 reviews and is listed as a Plumber in San Francisco. The review volume supports its high position among city providers.
1931 reviews
Heise’s Plumbing
Heise’s Plumbing posts a 4.9 Google rating from 1,786 reviews and is categorized as a Plumber in San Francisco. A substantial review count helps validate the near-five-star average.
1786 reviews
Frequently asked questions
How should I choose a plumber in San Francisco?
Start by checking online reviews and the number of reviews to balance score and sample size. Confirm licensing and insurance, ask for written estimates, and make sure the plumber provides a clear scope of work and expected timeline before hiring.
What should I check before a plumber starts work?
Verify the plumber’s identification, license, and insurance coverage and get a written estimate that itemizes parts and labor. Ask about warranties or guarantees on work and whether permits will be required for the job.
When is it appropriate to call an emergency plumber?
Call an emergency plumber for gas smells, major flooding, sewage backups, or when a failure poses immediate risk to health or property. For slow drains or minor leaks, scheduling a regular service call during business hours is usually sufficient.
How was this ranking of plumbers built?
This ranking uses Google review data and a Bayesian-style score that weighs average rating by the number of reviews, updated in 2026. The method favors businesses with high ratings supported by substantial review counts rather than tiny sample sizes.