Licensed & Insured · CA LIC #982663
Open 24/7 · Mon-Sun
Pacifica, San Francisco, Burlingame, CA · Serving the Bay
PACIFICA, CA • LIC #982663 • 24/7
We answer the phone day, night, weekends, and holidays, with same-day service across the Peninsula.
Works Plumbing provides toilet repair in San Francisco, CA for toilets that run, leak, rock, or clog. We find the failed part, quote the repair before we start, and in most cases finish in one visit.
Upfront pricing. Same-day service. No obligation.
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THIS MONTH’S BEST DEAL
One-time use. Combine with our 24/7 emergency service and pay only when the job is done. Mention this offer when you book.
Expires soon Cannot be combined
In many San Francisco homes, the toilet we are fixing is the only one in the house. We plan our visits with that in mind.
Schedule toilet repair in San Francisco
Most toilet calls come down to a handful of failures. Here is what each symptom usually means:
| Symptom | Likely cause |
|---|---|
| Tank refills on its own or runs nonstop | Worn flapper or a failing fill valve |
| Weak or incomplete flush | Low water level, a worn flush valve, or a partial clog |
| Water on the floor at the base | Failed wax ring or a loose closet flange |
| Toilet rocks when you sit | Loose bolts or a damaged flange |
| Drip from under the tank | Loose tank bolts or a worn tank-to-bowl gasket |
| Slow drain or repeat clogs | Blockage in the trap or further down the line |
A running toilet is easy to ignore, but it can waste water around the clock. A leak at the base is more urgent, because the water goes into the floor before you see it.
We check the tank parts, the flush, the seal at the floor, and the supply connection. A wobble or a stain gets traced back to its source before we name a fix.
You get the repair and the price before any work begins. If a part has failed but the toilet is sound, we repair it. If the bowl or tank is cracked, we tell you.
After the repair, we flush and refill several times and check for drips at every joint. We also check that the shutoff valve closes fully, so you can stop water quickly next time.
A base leak almost always means the wax ring has failed or the flange underneath has shifted. The fix is to lift the toilet, inspect the flange, set a new seal, and bolt the toilet down level.
Signs to watch for:
If the flange is cracked or corroded, we repair it before resetting the toilet. A new wax ring on a broken flange will fail again.
Most clogs sit in the toilet’s built-in trap and clear with a closet auger. If the toilet clogs again soon after, or the tub gurgles when it flushes, the blockage is likely further down the line.
San Francisco owners own the sewer lateral from the house to the city main. When a toilet keeps backing up, our team checks whether the problem is in the toilet or in the lateral. If it is the lateral, our San Francisco sewer line repair team takes it from there.
The small hose and valve behind the toilet fail more often than people expect. A braided supply line can kink or bulge with age, and an old shutoff valve can seize open.
We replace worn supply lines and shutoff valves as part of a toilet repair when they show wear. In a house where the bathroom sits over the garage, a failed supply line is not a small leak for long.
Most toilets can be repaired. Replacement makes sense only when:
We give you an honest repair option first. If repair does not make sense, we explain why and quote the alternative.
A toilet that refills by itself every so often, with no one using it, has a slow leak from the tank into the bowl. The usual culprit is a flapper that no longer seals.
A loud hiss or a refill that takes a long time points to the fill valve. Both are quick part replacements, and both stop water waste right away.
A few simple steps can limit damage while you wait:
If water reached the garage ceiling below, let us know when you call so we can check it on the same visit.
We repair toilets across San Francisco, including the Outer Sunset, Parkside, and Golden Gate Heights. If your shower is acting up too, see our shower repair in San Francisco. For other fixture problems, visit our plumbing repair services.
My Sunset home has only one bathroom. How fast can you fix the toilet?
We offer same-day service, and we treat a failed toilet in a single-bathroom home as a priority. Most repairs are finished in one visit because we carry common parts.
There is a stain on my garage ceiling under the bathroom. Is it the toilet?
It often is in San Francisco’s garage-under homes, where the bathroom sits above the garage. A failed wax ring or supply line is a common cause. We trace the leak from the bathroom side and check the floor.
Does San Francisco’s water wear out toilet parts?
SFPUC water is soft, with an average hardness of 62 ppm in its 2025 report. Heavy mineral buildup is less common than in hard-water areas, so worn flappers and valves are usually age and use. We check both when we diagnose.
My toilet keeps backing up. Is it the toilet or the sewer?
If other drains also gurgle or back up, the cause is likely in the sewer lateral, which San Francisco owners own. We check the toilet first, then the line, and tell you which it is.
Do I need a city permit for toilet repair in San Francisco?
A standard repair of the toilet’s own parts does not involve cutting into pipe. If a repair requires opening concealed piping, the Department of Building Inspection’s plumbing permit rules apply, and we handle that for you.
A running, leaking, or clogged toilet will not fix itself. Works Plumbing repairs it with a clear price and a careful test before we leave.
Request toilet repair in San Francisco
Weak and incomplete flushing are often symptoms of rust, debris, and mineral buildup within the rim feed and jet holes of your toilet bowl that are restricting and blocking water flow. If your toilet is unable to complete flushes well, call us right away to schedule an expert inspection and repair.
Every job comes with upfront pricing, licensed and background-checked technicians, and a 100% satisfaction guarantee . No surprises, no pressure, ever.
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:
Upfront pricing, licensed techs, and a real human on the phone 24/7 across the Peninsula.
A look at real Works jobs around the Peninsula.
Much of the Sunset District was built as tract housing, and that design shapes how a toilet failure plays out. The Sunset District historic context statement adopted by SF Planning describes the area’s main building era as 1925 to 1950, on land once mapped as the “Great Sand Waste.”
The typical house from that period had five rooms, just under 1,000 square feet, two bedrooms, and a single bathroom. Kitchen and bathroom sat near the center of the plan. Almost all of these tract homes put the garage at ground level with the living space above.
Two practical effects follow:
Builders such as Henry Doelger put up thousands of these homes, and many still have that original floor plan.
We at Works Plumbing work with that layout in mind. We carry common flappers, fill valves, wax rings, and supply lines so most repairs finish on the first visit. When a base leak is suspected, we also look at the garage ceiling below the bathroom to judge whether the subfloor took on water.
We also serve these neighboring Peninsula towns.
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.”
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