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Find Sump pump or interior foundation drains installers in San Francisco

Avatar for Amesos Plumbing Inc
Amesos Plumbing Inc
5.0(
1
)

Angi Approved

In business since 1977

Free estimates

Warranties offered

"So far so good. Snaking of kitchen sink with very old pipes. Hopefully snake did not poke pipes. Only time will tell. Keeping fingers crossed. They did a good job explaining and triple checked for leaks before they left. Of course they tried to upsell and gave us a metal trap they did not quote us upfront for. We would have chosen it over plastic, but price difference would need to be cleared upfront. That's the only negative. Otherwise, thus far we are very happy with the result. Thank you for coming on such short notice and on time! Super appreciated. 4.5-5 stars."
Recommended by100%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.5(
686
)

Angi Approved

In business since 1981

Warranties offered

Customers say: Super punctual

"The plumbing technicians came out as promised to assess the leak. They were both very courteous and kind and assessed the damage. I am giving three stars because they estimated the cost to be almost 250% higher than what the actual cost was to fix the issue. I am sure there are customers out there that would just accept any bid however, please get multiple beds for these projects, especially when working with this company as they will inflate the cost to take advantage of the situation. I ended up only paying for the $79 estimate."
26 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Peter Levi Plumbing, Heating, Cooling, Drains
Peter Levi Plumbing, Heating, Cooling, Drains
3.0(
13
)

Angi Approved

In business since 1990

Free estimates

Warranties offered

"It went very well; the thorough HVAC system checkup revealed some questionable component that were best suggested to be replace with new ones. I am not confident that my HVAC system is set for more that good performance going forward. I appreciated the non-pressured advice and suggestions in coming to my decisions. Thank you, Joaquin Ortiz."
7 neighbors recently requested a quote
Recommended by53%of homeowners
Custom sculpting Signs and More
New to Angi

I do custom sculpting and 3D signs for small businesses or large businesses I've done many sculptures for Vans shoe stores, Hot topic stores even Las Vegas casinos my artwork is variable according to my client's needs, I can custom make totem poles, smoke shop wooden Indians, driveway entrances you name it anything is possible I do chainsaw art as well as fine sculpting

Avatar for Facilities Plumbing & Drain
Facilities Plumbing & Drain
4.8(
5
)

Free estimates

Emergency services offered

"They recommended a good solution for the occasional shallow flooding in the garage (installing a sump pump) They started soon after we submitted the request and they did a good job. Most importantly, the pump kept the garage dry through our seemingly endless rains this winter. There are 2 reasons I rate the job with 4 stars rather than 5. (1) The job did not pass the city’s inspection and a critical connection had to be reconfigured (after which it passed) and (2) there was some weirdness around payment on the last day of the actual work (before the inspection) in which the crew seemed unwilling to leave without a check and then were slowly driving around the neighborhood afterwards. When I brought this up with my contact at the company, he denied that the van was theirs (which it definitely was) and didn’t really explain or defuse the bad feeling this created. But … they did a good job and in this day and age that’s really important and can’t be taken for granted. I recommend this company with the suggestion that paperwork, permitting, terms of payment etc should be clearly settled in advance."
Recommended by80%of homeowners
Avatar for Steven Bailey Plumbing
Steven Bailey Plumbing
5.0(
1
)

In business since 2024

Emergency services offered

"great,the best"
Recommended by100%of homeowners
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FAQs for sump pump or interior foundation drains installation projects in San Francisco, CA

Most residential pumps draw approximately 1,300 to 2,900 watts when they first start, then settle at roughly 800 to 1,050 watts during normal operation. The exact number depends on the motor’s horsepower and how often the float switch tells the pump to run. Even at the high end, the electricity cost is minor compared with the expense of cleaning up a flooded basement.

Grab a ruler and an empty 18‑inch‑wide pit. During a steady rain, time how much the water rises in one minute. Multiply that depth (in inches) by 60 to calculate gallons per hour, then add 50% for safety. If the result tops 2,100 gallons per hour—about 35 gallons a minute—you’ll need a 3/4‑horsepower unit. Anything lower, and a 1/3- or 1/2-horsepower pump should do the trick.

Loud rattling, constant cycling, or shuddering vibrations are the pump’s way of telling you it’s on its last legs. Musty smells, higher electric bills, and visible rust are other red flags. If the unit is 10 years old or older and exhibits any of these symptoms, replace it before the next heavy rain turns your basement into a wading pool.

You don’t have to hire a licensed plumber, but you should still bring in someone who installs sump pumps for a living—whether that’s a plumber, basement‑waterproofing specialist, or experienced handyman. They know the local codes, can wire the pump safely, and will test the system before they leave. Skipping professional help might void the warranty and could leave you with a pump that fails when you need it most.

Not every basement needs a pump, but if your home sits in a floodplain, has a high water table, or has ever taken on water during a storm, a sump pump is inexpensive insurance. For basements that only struggle with condensation or the occasional damp spot, sealing cracks and improving drainage may be all that is needed.

The San Francisco, CA homeowners’ guide to sump pump or interior foundation drains installations

From average costs to expert advice, get all the answers you need to get your job done.