Toilet repair and replacement in San Francisco for running tanks, weak flushes, wax ring leaks, and stubborn clogs. Most repairs finish in a single visit. When replacement saves money long term, we set the new toilet level, test the flush, and verify the supply and drain connections.
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A running toilet can waste hundreds of gallons daily. Flappers, fill valves, and floats are inexpensive fixes when caught early ? we stock common parts for same-visit repairs.
Water at the base after flushing often means a failed wax ring or loose flange. Left alone, it damages subfloor and creates mold. We reset or replace the toilet and verify the seal.
Cracks in the porcelain, recurring leaks, or outdated high-flow units may cost more to keep than replace. We install water-efficient models and haul away the old toilet.
Every job is completed by licensed plumbers with full liability coverage.
Running toilets, leaks, and clogs — we fix what we can and replace when it saves money.
Most toilet repairs are completed same-day.
Homes, rentals, and small offices all depend on working toilets. We respect occupied spaces and clean up after every repair.
Fixing a running toilet often pays for the visit within a month on metered water. We test flush volume after adjustments.
Replacements can include comfort-height bowls and soft-close seats when you upgrade.
Donald from ASAP Plumbing was super quick and responsive. Helped me out in both San Francisco and South San Francisco. On the first occasion, he was able to unclog the drain in no time! On the second occasion, he was able to push out the "thing" that was stuck in the pipes, saving me from having to potentially replace the toilet entirely!! Super professional and easy going. 100% recommend.
Vinson Xia
Jul 16, 2025
If you’re looking for a reliable plumber, Don should definitely be on speed dial! I’ve been using his services for 2 years. He’s fixed everything from clogged sinks to toilet clogs and also replaced my toilet and garbage disposal. I live in an older home in San Francisco and some of those drain clogs were extremely difficult to fix but nothing Don can’t handle. Give him a call!
Marcos Cutino
Dec 29, 2022
I worked with Don for a few years now. Over the years, he had helped me install a toilet, garbage disposal, and fix a few emergency nasty sewer drain clogs. He never fails to fit me into his schedule. Don is one of the most honest plumbers I have dealt with. Ask your questions and he will be more than happy to help. I switched a lot of different plumbers over the years but Don is definitely my first call now. Go with DDD Plumbing San Francisco Drain Cleaning!
행운목
Dec 23, 2022
Don was wrapping up a job in Redwood City and heading to San Francisco, so he offered to stop by my place (on the way) immediately and get things done. I like that. He did a great job and got it done and confirmed everything was working and cleaned up before he left. I honestly don’t know the going rate for such work, so I cannot comment on the “good value” button, but I was very satisfied. He was OK with being paid with cash. That’s slowly becoming a good business advantage.
Chris Cavigioli
Jul 28, 2023
DDD is my first choice for plumbing issues! Don picked up immediately, listened to my issue and asked questions to narrow down a solution. He was able to come out almost immediately and was very professional and quick with his repairs. He re-assessed the situation and suggested a simple upgrade to reduce future failures instead of replacing the toilet which was cost-effective to go along with his great rates!
Piranavan Selvanandan
Feb 22, 2023
Don did a few jobs for us, and we kept coming back to him for our plumbing needs. After a great experience fixing and installing our rusted old garbage disposal, we thought of him for our toilet replacement. He goes above and beyond to make sure there aren't and issues, and even came back to do the caulking without extra charge. He brought someone to help him with the toilet and they both did a great, clean, professional job. Thanks so much Don!
Eric Daudenarde
Jan 8, 2023
I’ve been using Don since his business began. Don always offers the best prices for all San Francisco draining needs. I’ve used him for faucet installations, garbage disposal, drain clogs, outdoor and indoor plumbing needs, plumbing leaks, sewer cleaning, among other services for my properties. My neighbors also raved about his coverage in the San Francisco bay area region for shower installation, water tank needs, drain cleaning, sink draining, etc. He far and away exceeds my expectations especially in the San Francisco Bay Area region where prices are exorbitant. With Don, you get bang for your buck for professional plumbing and drainage needs with free warranty for the first month! I’ll be using Don for years to come! Hey Don, time to start a loyalty program?!
liqun jiang
Dec 22, 2022
We needed a toilet replaced and found Don, gave him a call to get a quote. Reasonable price, scheduled with him same day. He showed up, did a fantastic job and cleaned up afterwards too! He was also very cautious with our home and us, he wore a mask and booties. Pleasant experience working with Don. Would use his services again.
Colleen Lau
Dec 19, 2022
A running toilet quietly raises water bills. A leak at the wax ring stains flooring. A weak flush leaves waste behind. ASAP Plumbing Pros fixes these problems daily in San Francisco — usually in one visit — and replaces units when porcelain cracks or chronic leaks make repair a bad bet.
Flappers, fill valves, and supply lines are inexpensive compared to a month of wasted water. We stock common parts and test flush performance before we leave. Visit toilet repair & replacement for more on how we work.
New toilets need a level flange, fresh wax or wax-free seal, and leak-tested supply connections. We haul away the old unit and verify the shutoff holds.
If water backs up in the shower when you flush, the blockage may be downstream in the drain system — not the toilet itself. We diagnose the whole path.
Call (415) 728-6391 or use the contact form for toilet service in San Francisco. Describe running water, leaks at the base, or weak flush so we plan the right visit length.
Running toilets and leaks are often handled same-day.
Yes when the model is in stock or you provide a customer-supplied unit.
Usually a worn flapper, fill valve, or misadjusted float ? inexpensive repairs.
Often a wax ring failure; fix promptly to protect flooring and subfloor.
We check rim jets, flapper chain, tank level, and venting symptoms.
Yes on compatible toilets with accessible supply stops.
Simple repairs are modest; replacements quoted with haul-away included.
We serve San Francisco, Daly City, San Mateo, South San Francisco, San Bruno, Millbrae, and communities throughout San Mateo County. Call (415) 728-6391 to confirm service for your address.
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Call (415) 728-6391 or request service online — 24/7, every day of the year.
