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TRUSTED BY SAN ANSELMO, CA HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon339
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in San Anselmo - Updated Nov 2026

Avatar for Quality Pump Service
Quality Pump Service
4.5(
50
)
Sump Pump - Repair or Replace

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Small jobs welcome

"Use these folks if you can. I set a meet with Ramiro. He was on time, masked and using good Covid protocol. He checked out an existing well for a pump installation. He did a trial run & was excellent explaining the factors he was considering before recommending I NOT go ahead with the project. Honest enough not to sell you something you won't be happy with & you don't need. That's real service. Thanks Ramiro. Bennett K"
Response time5 hrs
13 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.4(
721
)
Sump Pump or Interior Foundation Drains - Install

Serving San Anselmo, CA and surrounding areas

Approved (Corporate)

In business since 1981

Free estimates

Warranties offered

"The service was prompt and professional, but overall very expensive for what was done. The cost was over $700 for less than 3hrs work from one person, plus the cost of the estimate. They replaced burned out main and backup sump pumps . Through no fault of theirs, the backup was faulty. So, in fact the backup did not get installed. The next day I purchased a new one and called back to ask if they would install the back up and if I had to pay more for them to do it. This would have been less than an hour to do. Even after several calls to them and speaking with several people, they never called me back or answered my question. If I had it to do all over again, I wouldn't pay them until the full service was complete. I felt like once they got my payment, they really couldn't be bothered to call me back. Although the actual workers that came out were great, I won't be using them in the future."
Living room Mini-Split
Aquasana home Filtration
Almost no disturbance at EBMUD meter
Navien with filtration to protect the heat exchanger
New house valve and Pressure Reducing Valve

+73

Response time8 hrs
Response rate100%
42 neighbors recently requested a quote
Avatar for Starving Plumbers
Starving Plumbers
4.5(
102
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving San Anselmo, CA and surrounding areas

Approved

In business since 1978

Free estimates

Small jobs welcome

"Had a small sump pump go out in an after market sink that had been installed by the previous tenants. Very competent, returned my call right away, came out with in a couple of hours and fixed the next day after obtaining another pump! Truly a good experience as I had called another plumber that took over a week just to call back"
50 gallon Water heater installation
Tankless Water Heater Installation
Tankless Water Heater Installaton
Installed new kitchen faucet
Response time6 hrs
27 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for GoFlow Plumbing
GoFlow Plumbing
5.0(
7
)
Sump Pump or Interior Foundation Drains - Install

Serving San Anselmo, CA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

Your plumbing problem becomes our problem to solve.\n\nThat’s not just a tagline, it’s how we operate. When you call GOFLOW, you’re getting a team that knows this area, knows plumbing, and genuinely cares about doing the job right.\n\nWe’re not a franchise. We’re not a call center routing you to whoever’s available. We’re a local company built by plumbers who got tired of watching customers get treated like transactions instead of people.

Kept existing config
Min visual impact
Moen Flo Install
Backflow Preventer
Backflow Preventer

+2

34 neighbors recently requested a quote
Avatar for Divine Electric, Inc.
Divine Electric, Inc.
4.5(
35
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2003

Warranties offered

Credit card accepted

"No work done, but He seemed capable and honest about the fact it was not necessary to proceed, and I appreciate the way the company kept me posted on times and arrangements-will definit4ely use them when needed."
Service Marin since 2003!
The team!
The team!
The team!
The team!

+4

Response time1 day
105 neighbors recently requested a quote
Recommended by81%of homeowners
Avatar for Groundworks
Groundworks
4.6(
19
)
Sump Pump or Interior Foundation Drains - Install

Serving San Anselmo, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Everything looks good after the work was done. I can finally close my bathroom door. I appreciated the fact that the foreman Erick Baez, went over what was done as they were done. I also appreciated that the two installers Manny Erickson and Jesus Villagomez also communicated with me after they were done to reassure that they did a proper job installing the jacks. Very good to know how the process was going. Great job."
Basement
Basement
Basement
Basement
Foundation

+16

168 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Same Day Plumbing, Heating, Cooling
Same Day Plumbing, Heating, Cooling
5.0(
1
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving San Anselmo, CA and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

Family-owned Same Day Heating, Cooling, Plumbing operates out of Windsor, just north of Santa Rosa. We offer fast, reliable AC repair and installation services, heater repair & installation, and plumbing services, in the North Bay area of California. Our promise to you is always that if we do not fix your system the SAME DAY we arrive… you DON’T pay the service fee. Our home service experts are licensed and insured with more than 100 years of leadership experience. Additionally, we back all of our installation and replacement services with a 24-month, 100% satisfaction guarantee.

Additional Photos
Additional Photos
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Additional Photos
Additional Photos

+8

53 neighbors recently requested a quote
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Sump Pump Installation FAQs, answered by experts

One common reason a sump pump stops working is improper sizing. Different locations need different sizes and power ratings of sump pumps depending on the typical amount of water the pump needs to manage. If your sump pump is too small for the quantity of water, it can overwork and either burn out or reduce the life of the unit. If the pump is too big, it can overwork and burn out early. 

Yes, it’s normal (and beneficial) to have a small amount of water in the bottom of your sump pit. It shows that your system is collecting groundwater, rain, and excess water from around your property—just like it’s supposed to. However, if the sump pit is always full, you might have a leak or a faulty sump pump.

If your water pump fails, the first step is to turn off the power to the pump to prevent any further damage. Check for common issues such as clogs, electrical problems, or mechanical failures. If you cannot identify the problem, contact a professional who specializes in pump repairs. Prompt action can help minimize damage and repair costs.

A sewage ejector pump is necessary if you have any plumbing fixtures, such as a bathroom, laundry room, or sink, located below the level of your home's main sewer line. Standard plumbing relies on gravity to move wastewater and solid waste to the municipal sewer or septic tank. However, for fixtures located below grade (e.g., in a basement), gravity is not sufficient.

The purpose of a sewage ejector pump is to actively pump this wastewater and solid waste upward into the main sewer line. Without an ejector pump in this situation, wastewater would have no way to exit and would eventually back up, causing a sewage overflow or flooding in your basement. If all of your home's plumbing is on the main floor or higher, gravity can handle the drainage, and an ejector pump is not needed.

Yes, it’s possible to install a sewage ejector pump outside rather than in a basement. However, there may be some extra steps involved, including running pipes from the inside to the outside of your home and digging (and re-filling) a hole for the basin. If you aren’t comfortable with this type of work, contact a plumbing pro to handle it for you.

The San Anselmo, CA homeowners’ guide to sump pump installation services

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