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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon46
    Verified sump pump installation services reviews

Verified Reviews for Sump Pump Installation pros in Knapp, WI

*The Angi rating for Sump Pump Installation companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.

*The HomeAdvisor rating for Sump Pump Installation companies in Knapp, WI is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Sump Pump Installation needs.

Last update on January 23, 2026

Find Sump pump installation pros in Knapp

Avatar for Groundworks
Groundworks
4.3(
226
)

Serving Knapp, WI and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2005

Free estimates

Warranties offered

"David K. sold and installed a sump pump/backup pump combo for us all in one day. The sale information given us was fine. Work was done promptly and courteously in prompt manner and with friendly demeanor. Wen wouyld gladly recommend him to a friend or relative."
Foundation
Foundation
Foundation
Foundation
Foundation

+16

126 neighbors recently requested a quote
Recommended by86%of homeowners
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Avatar for Choice Home Warranty
Choice Home Warranty
4.0(
5,676
)

Serving Knapp, WI and surrounding areas

In business since 2008

Emergency services offered

Credit card accepted

"Our technician, Dameyan Jackson, called the night before the day of service to let me know the time that he would be here to service our system. On Friday, he called to let me know that he was available to come earlier than scheduled, if I would like. He arrived shortly after the phone call, came in and quickly recognized that the pump had failed. He was very knowledgeable and professional. I was very pleased with his service and look forward to him returning to install a new pump."
Recommended by82%of homeowners
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Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Knapp, WI and surrounding areas

In business since 1971

Credit card accepted

"They have been out for the electrical. They have been out for the pool. They have been out for the sump pump. Its the fee for the service call. We have used them for the last 3 years. If you have an appliance that you think needs replaced they will not replace it they will repair it to death. They are very responsive. Some of the people they send out are great, some are okay."
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Additional Photos

+2

Recommended by65%of homeowners
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Goettl & Verbracken Plumbing, Inc.
5.0(
3
)

Serving Knapp, WI and surrounding areas

In business since 1998

Free estimates

"Goettl & Verbracken did a very competent job for us under difficult conditions in an older home. Working side by side was helpful for both parties, as questions always come up. Location of installed flex gas line (next to and in the same opening as the metal dryer vent) was not anticipated. I drilled a new hold with spade bit and extension and rerouted the gas line. Otherwise, we are happy with the work done and would hire again!"
Recommended by100%of homeowners
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Avatar for Split Rock Excavating
Split Rock Excavating
5.0(
2
)

Serving Knapp, WI and surrounding areas

In business since 2017

Free estimates

Emergency services offered

Split Rock Excavating is an owner operated Excavating service providing work in the Cadott, WI and surrounding areas. We provide free estimates for all of our customers and would love to take a look at what we can do for your home today. Please give me a call to send a message for a free quote today. \n-grading\n-site work\n-demolition\n-rip rap\n-septic and water\n-driveways\n-clearing and grubbing

Rip Rap and a culvert
Clearing and Grubbing for access trails
Weeps
Rip Rap
Stripping and grading

+19

Recommended by100%of homeowners
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Sump Pump Installation questions, answered by experts

Installing a battery backup for your sump pump is recommended, particularly if you live in an area with frequent power outages or severe rainstorms. A sump pump requires electricity to function, and a battery backup ensures it can continue to move water out of your home if the power goes out, providing crucial protection against flooding. Additionally, frequent power outages can create electrical surges that might damage the sump pump's motor. A battery backup system offers an additional layer of protection, ensuring your basement stays dry.

The most common cause of a clogged sump pump is natural debris buildup. As water enters the sump pit, it can carry small pieces of debris that build up over time, or the debris can get caught in the filter. If you forget to cover the pit after cleaning the sump pump and pit, debris can also collect in the pit. Corrosion on the metal discharge pipe can also clog the pump. Additionally, if your pipes freeze, it can prevent water from draining properly and cause a clog.

A small sump pump running infrequently uses an average of 10 kilowatt-hours (kWh) of electricity per month. The average cost for electricity is $0.171 per kWh. The size and use frequency affect how much electricity it uses. Sump pumps average one-third to one horsepower (hp) motors. One hp is equal to 745.7 watts. Watts multiplied by the time your pump is running divided by 1,000 equals your average kWh. Multiply kWh by your average cost of electricity. In areas with high rain or a marsh basin, the average cost can be as high as $15-$25 a month.

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.

A sump pump battery backup can typically run for 6 to 24 hours. The factors that affect its runtime include the battery capacity and pump usage. 

When purchasing your backup system, take these factors into consideration to determine which system is best for your home. If you live in an area with frequent and long-lasting power outages, consider a longer-lasting backup battery.

The Knapp, 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.

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