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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon1.1k+
    Verified sump pump installation services reviews

Top-Rated Sump pump installation pros in Waunakee - Updated Nov 2026

Avatar for KJM Plumbing
KJM Plumbing
4.9(
27
)
Sump Pump or Interior Foundation Drains - Install

Serving Waunakee, WI and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"KJM Plumbing, Kurt, responded quickly to my request for a quote on replacing our leaking water heater. He quoted installing a high quality, Bradford White unit at a reasonable price. The plumber who did the full installation was a very skilled, professional and friendly worker. The final invoice had no unexpected charges and included a nice breakdown of the major portions of the project. I highly recommend KJM Plumbing, for work in the Madison, WI area."
Response time1 day
5 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Cardinal Heating & Air Conditioning
Cardinal Heating & Air Conditioning
4.8(
165
)
Sump Pump or Interior Foundation Drains - InstallSump Pump - Repair or Replace

Serving Waunakee, WI and surrounding areas

Approved

In business since 1984

Free estimates

Emergency services offered

"I purchased a new HVAC system from Cardinal. Everything about the job went as planned, in the amount of time we were promised. The installers were professional and cleaned up the work space very well when they were finished. I would use Cardinal again without hesitation."
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air

+15

98 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Kegonsa Plumbing
Kegonsa Plumbing
4.9(
14
)
Sump Pump or Interior Foundation Drains - Install

Serving Waunakee, WI and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"Lucas was amazing to work with. Got us a deal on a new kitchen sink and offered a match on the faucet when we found it cheaper elsewhere. Very prompt and excellent service. Will definitely hire again in the future."
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+9

1 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Advanced Home Services
Advanced Home Services
4.6(
137
)
Sump Pump or Interior Foundation Drains - Install

Serving Waunakee, WI and surrounding areas

Approved

In business since 1985

Free estimates

Customers say: Quality work

"AHS was very responsive to my inquiry for services and willing to work with my schedule. They were professional and punctual in their approach. He was a hard and smart worker with all the tools required and a ton of common sense gained through years of experience, The work was of high quality and fairly priced."
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+1

Response time1 day
Response rate100%
Recommended by86%of homeowners
Adler Plumbing, LLC
New to Angi
Sump Pump - Repair or Replace

Serving Waunakee, WI and surrounding areas

Approved

In business since 2023

Free estimates

Offers commercial services

Welcome to Adler Plumbing, LLC! In business since 2023, we are a full service plumbing company who takes great pride in the quality of our work and guarantees customer satisfaction. We specialize in all service and repair for both residential and commercial properties, and no job is too big or too small. Serving Cross Plains and its surrounding areas, be sure to give us a call today!

Response time3 hrs
14 neighbors recently requested a quote
Avatar for Hooper Corporation
Hooper Corporation
4.6(
115
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Waunakee, WI and surrounding areas

In business since 1913

Free estimates

Credit card accepted

"Hooper Corp. did an excellent job. They worked with us to install what "we" wanted - no sales pitch, no specific brand, etc. Everyone was professional and experienced, from project management to installers. We will certainly contact them again."
U-Haul Trench Drain
Memorial Union
Drain Cleaning in a Clean Room
Gordon Commons Kitchen Drains
Service Truck Fleet

+3

Response time7 hrs
Response rate86%
Recommended by95%of homeowners
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Sump Pump Installation FAQs, answered by experts

No. Sump pumps have different capacities, which refers to the volume of water that they can remove. They also come in various horsepower ratings, which measure the size of the pump’s motor. For many homes, 1/3 horsepower is enough. But if you live in an area that floods often, you might need a more powerful model.

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 drain wastewater and solid waste into the municipal sewer system or a septic tank. For fixtures below this level, like those in a basement, gravity cannot move the waste upward. The ejector pump provides the force needed to pump the sewage up to the main line. Without one, wastewater from below-ground fixtures would back up, potentially causing a sewage overflow and flooding. If all of your plumbing is on the main floor or higher, gravity is sufficient and an ejector pump is not needed.

Sump pumps remove excess water from the lowest point of your home, which prevents flooding. When a sump pit fills with water, a sump pump pushes that water outside of the basin and into an exterior discharge pipe. From there, the water flows away from your home, so it doesn’t damage your foundation.

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.

Several indicators suggest it's time for a sump pump replacement. A key factor is age; if the pump is over 10 years old, its lifespan is likely ending. Performance issues are also clear signs, such as the pump running constantly, cycling on and off frequently, making unusual noises or vibrations, or failing to function at all. A faulty or burnt-out motor is another definite sign a replacement is needed. Additionally, if you notice any signs of incorrect installation, the pump should be replaced. For a definitive diagnosis, a vetted plumber can assess the pump and confirm whether a replacement is necessary.

The Waunakee, WI homeowners’ guide to sump pump installation services

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