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Find Sump pump or interior foundation drains installers in Danville

Avatar for Albert Nahman Plumbing, Heating, and Cooling
Albert Nahman Plumbing, Heating, and Cooling
4.63(
622
)

Angi Approved

In business since 1981

Warranties offered

Customers say: Super punctual

"The crew from Albert Nahman did a great job from start to finish. The project was to replace the original ductwork in our 60 year old house. Tom provided excellent advice for the estimate then Bryan’s crew did the job, 2 days, within a week of my acceptance of the proposal. Great work."
34 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Valley Plumbing Home Center, Inc
Valley Plumbing Home Center, Inc
4.76(
242
)

Angi Approved

Super Service Award Winner

In business since 1982

Emergency services offered

Warranties offered

"Fabulous service from start to finish. The office team, the communication and getting the job done quickly. Upfront about timing and costs. I really enjoyed the text and email with Carl's picture and bio. Carl was clearly experienced, knowledgeable and professional. I hope to hire him when we do the remodel of our 1960s bathroom in the coming year!"
Recommended by94%of homeowners
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CROCIANI CONSTRUCTION CO
5.00(
2
)

In business since 1947

Free estimates

Emergency services offered

Recommended by100%of homeowners
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H&H Services
New to Angi

Free estimates

Emergency services offered

Warranties offered

A personalized home remodeling company. We do it all from A to Z. Everything from forms and framing to finish work including plumbing and electrical.

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Avatar for Leegwater Building & Development, Inc.
Leegwater Building & Development, Inc.
5.00(
1
)

In business since 2001

Free estimates

Warranties offered

As a design-build company, we manage your project from inception to warranty. With a proven team of professional designers, architects, and dependable subcontractors at our disposal, we make the process easy for you. We handle every phase of the design/build process.\n\n-Idea generation\n-Budgeting\n-Project design\n-Approval and permit process \n-Construction\n-Warranty\n\nWe take responsibility for the entire process, communicating with you every step of the way. We provide you with your own project portfolio complete with a timeline, and support materials to help you with any design and purchasing decisions you need to make.

Recommended by100%of homeowners
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Plumbing Works
5.00(
3
)

In business since 1995

Free estimates

Warranties offered

Owner operated, no employees, check or cash upon completion of work

Recommended by100%of homeowners
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FAQs for sump pump or interior foundation drains installation projects in Danville, 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 Danville, 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.

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