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TRUSTED BY LAGUNITAS-FOREST KNOLLS, CA HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon81
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Lagunitas-Forest Knolls - Updated Nov 2026

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

Serving Lagunitas-Forest Knolls, 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
11 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for GoFlow Plumbing
GoFlow Plumbing
5.0(
7
)
Sump Pump or Interior Foundation Drains - Install

Serving Lagunitas-Forest Knolls, 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

33 neighbors recently requested a quote
Avatar for Marin Plumbing, Brian S. Cooke Enterprises
Marin Plumbing, Brian S. Cooke Enterprises
4.4(
24
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved

In business since 1991

Emergency services offered

Warranties offered

"I would echo most of what I have read in the reviews about Brian. He is prompt, courteous, and professional. Though he is a bit on the expensive side, I believe he is well worth it. An honest, experienced plumber is like money in the bank as far as I'm concerned. Because, while I could have found someone less expensive, experience has shown me that when it comes to plumbers, you definitely get what you pay for. And Brian is worth every penny."
the work force
Recommended by85%of homeowners
Avatar for Groundworks
Groundworks
4.6(
19
)
Sump Pump or Interior Foundation Drains - Install

Serving Lagunitas-Forest Knolls, CA and surrounding areas

Approved (Corporate)

In business since 2023

Free estimates

Warranties offered

"Several months ago, I noticed that doors in my house were no longer closing and latching. Specifically, my front door no longer locked completely. Once I got it fully locked I could no longer open my front door anymore, so I knew I had foundation issues. I called Bay Area Underpinning to come look at my foundation and do some measurements. We discovered that my front living room was sinking approximately one and a half to 2 inches. The crew, Lance Sladek, Jake Hall, and Eddie Shaw, crawled under my house and dug 30 to 40 foot holes in the ground to install piers that would lift my foundation. These gentlemen worked in very cramped dirty conditions in 90-100° weather. I was extremely happy with their work and their dedication to doing the job correctly. My after the foundation lift, my front door as well as several other doors in my home were able to close and latch again."
Basement
Basement
Basement
Basement
Foundation

+16

163 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 Lagunitas-Forest Knolls, 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.

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+8

49 neighbors recently requested a quote
Avatar for Bay Area Moisture Control, Inc.
Bay Area Moisture Control, Inc.
4.6(
8
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Lagunitas-Forest Knolls, CA and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"The crawl space under our house always filled with water during the rainy season. They performed a crawl space encapsulation and since that time we have no water under the house. When we called them, they came and gave us a price proposal - out of many reasons it was over a year later when we returned to this project; nevertheless they honored their old proposal and performed a great (and really not easy) job."
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.
.
Response time2 days
Recommended by87%of homeowners
Avatar for Fire & Water Damage Recovery
Fire & Water Damage Recovery
4.7(
69
)
Sump Pump or Interior Foundation Drains - Install

Serving Lagunitas-Forest Knolls, CA and surrounding areas

In business since 1997

Free estimates

Emergency services offered

"The experience with Justin at Fire & Water Damage Recovery was excellent. They were referred by the plumbing company that serviced my sump pump. We still got 3 estimate, Justin's estimate was in the middle but I felt good with Justin based on our phone conversation and the referral so we went with this company. Justin did tell me that he might have estimated on the high side because he does not like to surprise the homeowners. What a surprise when I go the final invoice. The final invoice came in much lower and was very close or lower than the lowest estimate I got. Justin and his team also took pictures of how the place was before and after for me to see. They even took pictures of the pathway that they took to get to the crawl space to assure me that they kept the place clean when they got in and out. I was very satisified with Justin and his company."
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+27

Recommended by88%of homeowners
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Sump Pump Installation FAQs, answered by experts

Sump pump repairs are typically handled by plumbers or waterproofing specialists who are experienced in handling basement and foundation-related issues. Plumbers can address issues like clogs, electrical problems, and mechanical failures, and waterproofing professionals may be ideal if the sump pump is part of a larger drainage or waterproofing system. 

Some people may also call on a general handyperson for minor sump pump repairs. However, for complex problems, hiring a certified plumber or waterproofing expert ensures the work is done correctly and prevents further issues.

To maintain your sump pump, start by checking it every three to four months to ensure it’s in working order. Clear any debris from the pit because blockages can prevent the pump from operating efficiently. You should also test the pump by pouring a bucket of water into the pit. If it turns on automatically and drains the water, it’s functioning correctly. Inspect the discharge line for clogs, and ensure it directs water away from your home. Once a year, clean the pump itself, and consider having it professionally serviced for optimal performance.

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.

Yes, many providers offer warranties for new pumps and labor. Confirm terms before scheduling.

Thankfully, you do have a few sump pump backup options in case it fails. One option is a battery-powered backup sump pump. Another option is using a portable backup generator as a power supply for your sump pump. Unlike a battery-powered backup which has limited power, a generator can run around the clock for as long as you need it. 

Or you can opt for a water-powered backup pump, which uses your home’s water supply as a source of power. However, this may not be the best option if you find your house frequently has low water pressure.

The Lagunitas-Forest Knolls, 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.