Drain Cleaning
Fast drain clearing for sinks, showers, tubs, and main lines — available 24/7.
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Licensed South City plumbing from a crew based right here — Westborough, Sign Hill, downtown, and Oyster Point. A price before we start, same-day help, and the shortest drive we make.
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Fast response — no obligation
10% OFF
Limited Time Offer
Any plumbing service
Call (415) 728-6391 — cannot be combined with any other offer or coupon.
24/7
Emergency availability
Same-day
Service across the Bay
5.0★
Rated by 269 homeowners
Licensed
& fully insured crews
South San Francisco isn't just another pin on a county map for us. The shop is here. We drive El Camino, Grand Avenue, and Westborough Boulevard every day. Hillside laterals in Westborough, older galvanized under Sunshine Gardens bungalows, and tight mechanical rooms in Oyster Point offices all land on the same week's schedule.
Slow shower in Sign Hill, a water heater that quit on a Sunday, or a main-line backup downtown — you get our own licensed technician, a price before we start, and a warranty after we leave.
Expert plumbing, done fast
Emergency plumbing, drain cleaning, and fixture repair — available 24/7 in South San Francisco. Pick a service below and book when you're ready.
Drains & Sewer
Fast drain clearing for sinks, showers, tubs, and main lines — available 24/7.
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High-pressure hydro jetting for stubborn clogs, grease buildup, and tree roots.
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Video sewer camera inspections to locate blockages, breaks, and root intrusion.
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Sewer line repair and full replacement for cracks, bellies, and collapsed pipes.
Book nowFixtures & Water
Water heater repair and replacement for tank and tankless units — no hot water solved fast.
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Running toilets, leaks, clogs, and full toilet replacements done right.
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Leaky faucets, worn cartridges, and full faucet replacements for kitchen and bath.
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Garbage disposal repair, replacement, and new installs for your kitchen.
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Leak detection and repair for hidden pipe leaks, slab leaks, and fixture drips.
Book nowASAP Plumbing Pros is based in South San Francisco. When you call from South City, the truck isn't coming from another county — it's already here.
Burst pipes and backups don't wait for business hours. Neither do we — nights, weekends, and holidays included.
You get the price before we start, and the number we quote is the number on the invoice.
Fully licensed (CA Lic. #1133310) and insured on every job, residential or commercial.
The Better Business Bureau rates us A. Every repair and install carries a workmanship warranty on top of it.
No subcontractors. The technician who diagnoses the problem is the one who fixes it — and the one who comes back if anything's off.
Tell us you're in South City and what's happening. You'll get a real arrival window on the call — usually a short one.
A licensed technician heads over in a truck stocked to finish most jobs in one visit.
We show you what we found, walk through the options, and price the fix before any work starts. No guesswork, no pressure.
We finish the job, clean up after ourselves, and back the work with a warranty. If something's not right later, we come back.
Call or request online
Tell us you're in South City and what's happening. You'll get a real arrival window on the call — usually a short one.
A truck that's already nearby
A licensed technician heads over in a truck stocked to finish most jobs in one visit.
Upfront diagnosis & quote
We show you what we found, walk through the options, and price the fix before any work starts. No guesswork, no pressure.
Fix it, backed by warranty
We finish the job, clean up after ourselves, and back the work with a warranty. If something's not right later, we come back.
A
BBB Rating
Trusted & verified
Rated A by the Better Business Bureau
ASAP Plumbing Pros holds an A rating from the Better Business Bureau, based on our complaint history and how we handle customer concerns. We are also fully licensed (CA Lic. #1133310) and insured on every job.
View our BBB profilePlumbing emergency? We're already in town.
Burst pipes, sewer backups, and no-hot-water calls don't wait for a good time. We stage in South San Francisco, so when water is actively doing damage here, the window we give you is short and honest — day or night, weekday or holiday.
Real Google reviews from customers in and around South City.
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
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
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
I called ASAP Plumbing Pros for an emergency sewer lateral backup at our house and Don was nice, professional and easy to work with. He was able to get a hold of the senior plumber on call, Z, to be at our house within 20 minutes when the other plumbers in the city estimated a later time at night and others estimated the next day. Z was thorough and seemed to really care about solving our issue with the roots in our pipes. I would 💯 recommend them. Thank you both for making it easy for us.
Ling Wu
Jul 30, 2026
I've been looking for a plumber for probably 4 years now. They either don't show or Pad the quote or double the estimate, or ask such a ridiculous price that I end up buying the equipment. And doing the job myself. I was so pleasantly surprised by ASAP plumbing!... the representation, the quick call back, the professionalit, the price, the promptness and the immediate response, everything everything was amazing. I already called them back to do another job.
Gena Starkweather
Nov 6, 2025
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
Fantastic experience! I reached out to ASAP Plumbing via a Thumbtack and they got back to me immediately. They scheduled the appointment based on a specific timeframe I needed. Donald, the Plumber, showed up right on time and was very knowledgeable and a pleasure to deal with. Definitely might go to Plumber's from now on!
Marcie Elias
Jul 23, 2026
We're based in South City, so Westborough to Oyster Point is everyday dispatch — plus Daly City, San Bruno, and Brisbane. Call (415) 728-6391 to confirm same-day service at your address.
Neighborhoods & nearby
Westborough, Sunshine Gardens, Sign Hill, Downtown South City, Oyster Point, Avalon, Paradise Valley, Winston Manor, Lindenville, Brisbane.
Don't see your neighborhood? Ask us — chances are we already cover it.
Yes — Westborough, Sunshine Gardens, Sign Hill, downtown South City, Oyster Point, Avalon, Paradise Valley, Winston Manor, and Lindenville, plus nearby Brisbane. Call (415) 728-6391 if you want to confirm your street.
We're based in town, so South City is our shortest run. Most calls get a same-day window, and an emergency jumps the line for the closest truck we've got.
Locals call it South City. Same place, same 94080 — and whichever name you use, you've got the right plumber.
Yes, 24/7/365. Ring any hour — a real person picks up and gets a technician moving.
Yes. ASAP Plumbing Pros is fully licensed (CA Lic. #1133310) and insured, with an A rating from the Better Business Bureau.
All of it, and being based here means we see the full range: emergency plumbing, drain cleaning, sewer cleaning and repair, hydro jetting, camera inspections, water heater repair and replacement, toilet and faucet repair, garbage disposals, and leak detection — including commercial work around Oyster Point and Lindenville.
Yes. Every repair and installation is backed by a workmanship warranty. If something isn't right after we leave, call us and we'll come back and make it right.
Our shop is at South San Francisco, CA 94080. South City is home — this is the shop your technician leaves from. Call (415) 728-6391 any hour and a real person picks up.
Ready when you are
Plumbing emergency? We're on the way.
Call (415) 728-6391 or request service online — 24/7, every day of the year.