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TRUSTED BY SHERMAN, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon803
    Verified foundation drain installation services reviews

Top-Rated Foundation drain installation pros in Sherman - Updated Nov 2026

Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sherman, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"I posted an initial review on 2/21/19 on a job done on 1/11/19 to fix groundwater from coming into our basement. The drainage system and sump they installed was not collecting all the water that was coming in, as we had leaking from several areas along an uneven rock ledge. I had reached out to our salesperson by phone and email and never heard back, so I was very frustrated. About 3 weeks after I posted the review, I did get a call from Jeff Allen, one of the supervisors. To make a long story short, he sent out one of their waterproofing specialists to look at the problem. We had already hired an independent mason to try to remedy the problem but he had not yet had a chance to do the job. Jeff convinced me that CT Basement systems would do absolutely whatever it took to fix my water problem. I cancelled the independent mason. Danny, a mason from CT Basement Systems came out and used a very ingenious method to divert all the water to the originally installed water guard trough and then to the sump. It is working beautifully!! I think Danny is a genius and I am so impressed and thankful for Jeff's perseverance and kindness in making this happen. I am now a very happy customer."
Additional Photos
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+12

161 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Sump Pump or Interior Foundation Drains - Install

Serving Sherman, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

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

Foundation
Foundation
Foundation
Concrete
Concrete

+16

385 neighbors recently requested a quote
Avatar for AG Property Maintenance, LLC
AG Property Maintenance, LLC
4.6(
12
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Sherman, CT and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

"Pedro and team solved an ongoing pond drainage issue that was able to be resolved. Many companies came and charged us money for half a job and this was not the case with AG. They were professional, proficient and quickly got to the source of the problem in one day. Prices were fair and they did not have to come back as they had all the supplies they needed to start and finish the job which is very rare for a major culvert issue like this one."
Brookfield ct
Brookfield ct
Brookfield ct
Brookfield ct
Brookfield ct

+4

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Atomic Rooter Inc
Atomic Rooter Inc
4.5(
126
)
Sump Pump or Interior Foundation Drains - Install

Serving Sherman, CT and surrounding areas

Approved

In business since 1977

Free estimates

Emergency services offered

"Someone called back right away and schedule to come to our home at 10am. They were 4 hours late. Two guys, one seem to be professional and knew what he is doing. They checked 3 bathrooms and drain pipe, and suggested I replace the flappers, seal one of the toilets, and put epoxy around the possible crack in one of the drain pipes. The whole job took less than an hour and cost me 620 dollars. I am new a home owner and don't have much experience, and I did not request a quote in writing, but I was told in the beginning that smoke test will cost 550, if it comes to it. They did not do it. I feel they used my inexperience to gain. Not to mention, that the problem of smell remained unfixed and I did not see any changes in how toilets work."
Additional Photos
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+6

Response time8 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for Cassidy Plumbing and Heating, Inc
Cassidy Plumbing and Heating, Inc
4.5(
32
)
Sump Pump or Interior Foundation Drains - Install

Serving Sherman, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Emergency services offered

Warranties offered

"Cassidy is professional, punctual, and clearly communicate. Thank you for guidance and repairing our corroded pipe. Thanks for installing the valve for the expansion tank too! I didn’t realize how much money that will save us in the future. ??"
Heating System
Heating System
Plumbing
The Team
Navien Water Heater

+3

Response time2 days
Response rate100%
8 neighbors recently requested a quote
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Foundation Drain Installation FAQs, answered by experts

The cost to install landscape drainage varies widely based on the scope of the project and the severity of the drainage issues. Typically, this project’s cost falls somewhere between $2,000 and $7,000 overall. Small-scale projects or simple fixes may start at the lower end, while more extensive and complex solutions could reach the higher end of the range. To get an accurate estimate, you should obtain quotes from multiple companies, as they will assess your specific needs and provide a customized cost estimate based on the work required.

DIY is possible for small systems like French drains. Professional installation ensures proper grading and long-term effectiveness.

French drains, sump pumps, and exterior waterproofing systems are common options. Choose one that best suits your property’s needs.

No, you can’t drain your sump pump into your home’s sewer system. In fact, it’s against the law in many places because dumping extra water into a municipal water system can disrupt or overwhelm the treatment process. And for similar reasons, you shouldn’t discharge a sump pump into your septic system, either.

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.

The Sherman, CT homeowners’ guide to foundation drain installation services

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