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    Average homeowner rating
  • Verified reviews icon612
    Verified sump pump installation services reviews

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

Avatar for Traditional Plumbing, LLC
Traditional Plumbing, LLC
4.8(
97
)
Sump Pump - Repair or Replace

Serving Oconomowoc, WI and surrounding areas

Approved

In business since 2010

Emergency services offered

Credit card accepted

"we hired traditional plumbing ( john) 4 times now, and one of the 4 times was recently, to do various projects for us. We had quite a list for him, and he did an excellent job. One of the projects was to get our main water shut off- to work. It was old, and corroded and frozen. He had to call our city water dept, and have them come out to go into our lawn, to find the main valve out there, to go down 6-7 feet, to shut it off. While the city was doing that, john went to a supply store to pick up the necessary parts he would need to fix it. John then made the necessary repairs, putting in new parts, and he did a great job. He also put in a new dual sump pump that we had purchased- ( he helped us to find a good one-) basement watch dog, and so, we asked him to put that in for us too. and he hooked up the battery for us, and showed us how it worked- plus he also made a new shelf for that battery to sit on, above the sump pump. We also had him install a new vanity top and faucet we had previously purchased, and then also we had him unhook an old water softener for us, and cap the pipes. We also wanted him to put on a new turn valve ( which got broken) on the pipe for our toilet. He really did such a good job, and we are happy that we found him through Home Advisors. He is a very nice man, and his pricing is fair too. We would recommend him very highly."
Water Heater install
Prep work
Prep Work
Final Product
Final Product

+1

Response time5 hrs
1 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Groundworks
Groundworks
4.6(
917
)
Sump Pump or Interior Foundation Drains - Install

Serving Oconomowoc, WI and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Small jobs welcome

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Basement
Basement
Basement
Concrete
Concrete

+13

50 neighbors recently requested a quote
Recommended by93%of homeowners
Cardinal Heating & Air Conditioning
4.8(
164
)
Sump Pump - Repair or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Oconomowoc, WI and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

Cardinal Heating, Cooling, Plumbing & Electric has provided full-service HVAC, plumbing, and electrical work to homes and businesses throughout the Madison area since 1984. Homeowners call us for furnace and air conditioner repair, water heater replacement, drain cleaning, and electrical panel upgrades, along with the everyday plumbing and electrical work every home needs. We take the time to listen to every customer and explain the options clearly, and our licensed technicians bring years of hands-on experience to routine maintenance, unexpected repairs, and full system installations alike. Call Cardinal today to schedule your free estimate.

Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air
Cardinal Heating & Air

+15

Recommended by90%of homeowners
Avatar for VINCENT PLUMBING & HEATING
VINCENT PLUMBING & HEATING
4.7(
32
)
Sump Pump or Interior Foundation Drains - Install

Serving Oconomowoc, WI and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Excellent service, extremely responsive, much better price than others we called, great installation, took extra time to answer questions when purchasing and when installing. Vincent Plumbing has been our plumbing/heating company for years. We highly recommend them!"
Touchless faucet
Kitchen
Bathroom
A/C
Additional Photos

+1

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Crawlspace / Basement Waterproofing Solution
Crawlspace / Basement Waterproofing Solution
4.4(
256
)
Sump Pump - Repair or Replace

Serving Oconomowoc, WI and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"This review is well over due. Now that we have the drain tile system we have not received any flooding The day he began Brian's team came to our house promptly in the morning at 8am. They immediately started jack hammering the floor around the perimeter of the basement. While two men jack hammered on opposite ends the rest of the team followed behind them clearing debris and bringing the large pieces to a truck to be hauled away. They then installed the drain pipe, sump pumps, and poured cement. They were able to compete the project within 8 hours. I was definitely impressed! Now that it is a year later with 3 seasons behind us we cannot complain about his installation of the drainage system. Furthermore, one year later he still provided us with exceptional customer service. Oddly enough our pipes connected to our sump pump that takes the water from the drain tile to the backyard became detached. He responded asap with putting the detached pipes from the sump pump back together and making sure what happened will not happen again. What I liked about him in comparison to the other companies was his approach. No sales techniques, nothing gimmicky just genuine and straight shooter type of guy. He believes in his service, no thrills and whistles to the product. Just common sense solutions with quality service. It's your house your investment. Call this guy, no "BS" to it. He won't let you down.
"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by90%of homeowners
Avatar for Capital Heating & Cooling
Capital Heating & Cooling
4.2(
204
)
Sump Pump or Interior Foundation Drains - Install

Serving Oconomowoc, WI and surrounding areas

In business since 2001

Free estimates

Emergency services offered

"Brain and Alexander were great and explained everything as they installed. Contact person was Justin. Be careful though as once I got the bill, the loan wasnâ t what I was promised."
Dirty furnace fliter
AC Repair in Brookfield
AC Replacement
Geothermal Heating System Installed
Capital HVAC Geothermal installer

+34

Response time10 mins
108 neighbors recently requested a quote
Recommended by83%of homeowners
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Sump Pump Installation FAQs, answered by experts

Costs range from $300 to $1,200, depending on the pump type, issue, and installation complexity.

Sewer ejector pumps need to be cleaned at least once a year by a professional. You shouldn’t attempt to clean it yourself because it can release sewer gasses that are toxic to humans and can be fatal. But to keep the system as clean as possible between professional inspection and cleaning services, be sure to only flush human waste and toilet paper. Avoid flushing items that can clog the system, like paper towels, grease, oil, or menstruation products.

There are several things you can do to maintain your sump pump and prevent sump pump problems. For instance, keeping a lid on your sump pit goes a long way in protecting your pump system from silt, sand, dirt, and other debris. When water drains from the outside, such as along your foundation, or with melting snow, water runoff often brings sediment with it. 

Also be wary of corrosion, particularly if your sump pump system is made of metal. Keep an eye out for rust and have it inspected regularly by a plumber or sump pump technician.

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.

To test for toilet leaks, use water coloring in the water tank and see if the water slips into the bowl from the tank. This test will indicate if there’s a problem with the flapper or refill tube. You can also put water coloring in the bowl of the toilet to see if there is a leak there. If there is, you should see the colored water on the outside of the toilet bowl or on the floor. 

The Oconomowoc, 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.