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TRUSTED BY THOMPSON, CT HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon14
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Thompson

Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)

Serving Thompson, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"We just had American Dry Basement install a waterproofing system in our basement. We've had issues with water in our basement and needed a total solution so we can sleep at night and go away without worrying about flooding. Steve T from American Dry came to our house and presented us with what the solution will look like and thoroughly explained the entire process. He also answered all our questions and was always available to talk to. He is extremely knowledgeable and an excellent professional to work with. Then Wilson and his two-man crew came to do the work and they were all professional, extremely hard working and respectful of our home. They always started early and worked all day long to get the job completed. They wrapped up all items that were still exposed after we cleaned out most of our basement, used vacuums and filters to minimize all the dust and left our basement cleaner than it was before. We highly recommend American Dry Basement Systems and we're so happy we chose them over the others we received estimates from. And their price was more than competitive for what we believe is a much better solution."
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time10 hrs
5 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Groundworks
Groundworks
5.0(
7
)

Serving Thompson, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Aaron Lenker add Corbin Gillichbauer of Groundworks leveled concrete walks around my corner lot in Montoursville Pa. They arrived around noon time and were finished about 5 1/2 hours later. They did their work very professionally. They did an excellent job. I would rate their work 5 of 5 stars."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

326 neighbors recently requested a quote
Avatar for New London Home Improvements LLC
New London Home Improvements LLC
5.0(
2
)

Serving Thompson, CT and surrounding areas

Approved

Free estimates

Warranties offered

Small jobs welcome

"We had a leak in our foundation that flooded our finished basement newlondonhomeimprovements came to our property and took a look at what we had going on. They did there inspection and found a solution for the issue. They came out dug the out side of the foundation found the issues with our foundation and then sealed our foundation with a drainage system Now our basement is completely dry thanks again newlondonhomeimprovements"
2 neighbors recently requested a quote
Avatar for Cowan Family Plumbing LLC
Cowan Family Plumbing LLC
5.0(
7
)

Serving Thompson, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"He came over and did the rough-in for finishing my basement. Took the time to think about what was the most logical things need for me as a homeowner (access to pipes, shut off valves, hook up locations, etc..) very professional and showed quality work."
Bathroom Install
Bathroom Install
Master Water Conditioning System Install
Master Water Conditioning System Install
8 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for Stonecare Paving and Masonry
Stonecare Paving and Masonry
4.7(
64
)

Serving Thompson, CT and surrounding areas

In business since 1990

Free estimates

Emergency services offered

"Fantastic. I can't recommend them enough. The owner is one of the most honest, conscientious and dependable workers I've ever had the pleasure of hiring, and his crew was the same. These are expert craftsmen, and the work is stunningly beautiful. They are worth every penny (good masonry doesn't come cheaply)."
New patio with design in center using granite and charcoal colors to highlight
Sealed and waterproof basement
Basement fully waterproofed
Patio done in Holland stone
Damp proof drainage

+918

Recommended by96%of homeowners
Avatar for The BullBag
The BullBag
5.0(
15
)

Serving Thompson, CT and surrounding areas

In business since 2001

Credit card accepted

"Great! This company is professional, easy to work with, and offers a great value for the service. I did the leg work and compared them and their pricing with that of several dumpster companies and will continue to use the BullBag. Their pricing always blows the dumpsters away - BullBag doesn't charge by how much it weighs like a dumpster does AND I get to keep my BullBag. I don't have to wait for a dumpster to be delivered either."
The BullBag truck in MA
The BullBag truck in NY
Toys for Tots
Recommended by100%of homeowners
Avatar for Set In Stone
Set In Stone
4.3(
23
)

Serving Thompson, CT and surrounding areas

In business since 1982

Free estimates

"Ray and his team were incredibly professional, kind and courteous throughout all of the home projects. Their work on my basement foundation, installation of French drains and the rebuilding of an exterior wall were all phenomenal and at a very fair price. I highly recommend their services 10/10"
Recommended by86%of homeowners
Showing 1-10 of 41
Basement Waterproofing questions, answered by experts

A vapor barrier keeps moisture out of the crawl space, while insulation reduces the amount of unconditioned air—and sometimes moisture—that enters the space. Coupling a vapor barrier with insulation can help prevent humidity and related moisture damage in a crawl space while also making your home more energy-efficient. Just be sure to use insulation that won’t get damaged from moisture, like rigid foam board or expanding spray foam insulation.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

Yes, slab leaks are fairly common, especially in older homes and places that are prone to earthquakes which can move home foundations.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

Yes, you can technically make a crawl space liveable, but the only way to do so is by converting it into a basement. While some crawl spaces are big enough to walk through and store large items, they lack appropriate insulation and space to be liveable.

The Thompson, CT homeowners’ guide to basement waterproofing services

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