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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
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Thompson, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"I had a great experience with American Dry Basements. From start to finish, their team was professional, knowledgeable, and easy to work with. They took the time to explain everything clearly and made sure the job was done right the first time. What really stood out to me was their fair and affordable pricing—no surprises, just honest work at a reasonable cost. It’s not always easy to find a company that combines quality service with good value, but they definitely delivered on both. If you’re looking for reliable basement waterproofing with a team you can trust, I highly recommend giving them a call."
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
9 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Groundworks
Groundworks
5.0(
12
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

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

608 neighbors recently requested a quote
Avatar for Cowan Family Plumbing LLC
Cowan Family Plumbing LLC
5.0(
8
)
Basement Drainage Channels - Install

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
Response time4 days
Response rate100%
9 neighbors recently requested a quote
Avatar for New London Home Improvements LLC
New London Home Improvements LLC
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

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"
7 neighbors recently requested a quote
Avatar for Stonecare Paving and Masonry
Stonecare Paving and Masonry
4.7(
64
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

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
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

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
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

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
Quality Dry Basements Inc
3.6(
31
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Thompson, CT and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"lWell. The basement was a damp dungeon prior to installation. Now, it's dry and usable. We also had a contractor install a new powder room and floor and lots of closets. We can now use the basement for extra living space.
"
Recommended by60%of homeowners
Showing 1-10 of 41
Basement Waterproofing questions, answered by experts

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.

Overwatering can cause issues like water pooling and drainage problems. To prevent overwatering, monitor your soil levels on a regular basis and change your watering schedule as necessary.

In most cases, a crawl space will not dry out on its own unless the moisture comes from an uncommon flood and isn’t expected to be a recurring issue. For most homeowners, moisture problems in the crawl space will only continue to get worse over time, so addressing the underlying problem with gutter systems or a foundation drainage system and setting up a preventative solution like a dehumidifier is necessary.

While a standard gutter system is widely considered the most effective way to prevent water damage to your home's foundation, several alternatives are available. These options can be used on their own in certain climates or as supplementary protection.

Common alternatives include:

  • Rain Chains: These are decorative chains that hang from the roof's edge, guiding rainwater to the ground.

  • Drip Edges: These metal strips are installed at the edge of the roof to direct water away from the fascia. While often used with gutters, they can be paired with a ground-level solution but are typically not sufficient on their own.

  • Rain Dispersal Systems: These systems work by breaking up the heavy sheet of water flowing off the roof, dispersing it over a wider area.

  • French Drains: This ground-level system uses a perforated pipe in a gravel-filled trench to collect and redirect water runoff away from the house.

  • Drip Paths: Placed directly below the roofline, these paths made of concrete, stone, or other materials prevent soil erosion and guide water away.

It's important to note that some alternatives like rain chains and dispersal systems may not be adequate in regions with heavy rainfall because they don't divert water away from the foundation as effectively as a full gutter system. Ground-based solutions like French drains can be very effective but are often more expensive and can affect your landscaping and curb appeal. Many experts recommend installing a full gutter system for maximum protection and using alternatives as supplementary measures.

Regular inspections, proper drainage management, and ensuring soil stability help prevent future settlement issues.

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.