Top-rated basement waterproofing pros.

Get matched with top basement waterproofing pros in Washington, CT

Enter your zip and get matched with up to 5 pros

TRUSTED BY WASHINGTON, CT HOMEOWNERS

  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon15
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Washington

Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Washington, 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 time11 hrs
7 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
223
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Washington, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Excellent job.... Keith knew exactly what was wrong with our garage wall, he explained everything in great detail and offered us the right solution. The work was done in a timely manner. We are very pleased. Thank you CT Basement!"
Finished basement in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT
Basement Finishing in CT

+13

Response time10 hrs
164 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
5.0(
12
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Washington, 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

510 neighbors recently requested a quote
Avatar for Economy Handy Carpenter, LLC
Economy Handy Carpenter, LLC
4.6(
329
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Washington, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Nixon and his crew did an outstanding job gutting and rebuilding a very challenging bathroom in our house, which was built in the 1930s. We are very happy with the craftsmanship and the price, and it was a pleasure to work with them on this project from start to finish. I highly recommend this excellent contractor."
Response time10 hrs
19 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Phil's Landscaping, LLC
Phil's Landscaping, LLC
3.6(
26
)
Basement Drainage Channels - Install

Serving Washington, CT and surrounding areas

Approved

In business since 1994

Free estimates

Emergency services offered

"He was on time, friendly, and honest. We had a plumber tell us that the pipe was broken at the septic tank so Phil and Mike came out to dig it up and replace it. When he dug it up he found that the pipe was not broken and was totally honest about it and gave us options and help that solved our issue we were having. I would totally use him again for any work I need done in the future."
 finished wall
 Driveway cut in
 propane tank in place
 Before pic heavily wooded
 wall with steps

+61

Response time9 hrs
Recommended by82%of homeowners
Northeast Construction Solutions
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Washington, CT and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Northeast Construction Solutions did an excellent job tuckpointing my chimney. They also installed a new concrete crown, and the finished work looks great. The crew was professional, efficient. I highly recommend them for anyone needing chimney repairs!"
8 neighbors recently requested a quote
Dirty Deeds Basement Waterproofing, Inc.
4.9(
60
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Washington, CT and surrounding areas

In business since 2012

Free estimates

Credit card accepted

"Called Dean with an emergency on a raining Sunday after turning to Angieâ s List to get my sump pumps working. Had never used him before. He came immediately. He got 2 of 3 working and replaced the third. Got everything set back up and running. Charged me only $150 ona Sunday plus the cost of the new sump pump, which was about the same as the last time I got a new pump from a plumber. Knows his stuff, friendly and reasonable. Would definitely recommend."
Response time20 mins
Recommended by100%of homeowners
Avatar for Empire Construction Waterproofing llc
Empire Construction Waterproofing llc
5.0(
15
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Washington, CT and surrounding areas

In business since 2006

Free estimates

Warranties offered

"Flooding in our basement has been a recurring problem over the years. We’ve had various companies do work for us but they failed to keep our basement dry for longer than a few months at a time and only did a semi okay job. That all changed when we hired Empire Construction Waterproofing. Chris gave me a very reasonable price for the size of our project. They had a team down there starting to work almost right away! They were incredibly professional and worked very efficiently. Once they were done they left the space in great condition. My husband and I were very satisfied with the project. The results went above and beyond our expectations, the quality was unlike anything we’ve ever seen before. It was such a pleasure working with Chris and Empire Construction Waterproofing. I have recommended them to all of my friends and family. If you’re having basement issues definitely give them a call."
Response time12 hrs
Recommended by53%of homeowners
...
Showing 1-10 of 80
Basement Waterproofing questions, answered by experts

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

The best type of basement ventilation system depends on your budget, the moisture in your basement’s air, and the types of windows you have down there. You should consider all of these factors when choosing a ventilation system. However, the most effective method for basement ventilation is an energy recovery ventilator (ERV) or a whole-house ventilation system, which preheats or precools incoming air from the outside while also managing water vapor.

Mold and other fungi love moisture, so the best way to prevent mold growth after water damage is to remove as much moisture as possible. First, find the source of the water or moisture, such as a leak or clogged gutters, and correct the problem. Next, remove standing water, vacuum up puddles with a shop vacuum, and run blower fans and dehumidifiers for 24 to 72 hours. Once you've removed all traces of moisture, disinfect the area using either vinegar or bleach to kill any remaining mold spores.

A crawl space encapsulation isn’t always necessary, but it’s a wise choice, especially if you live in an area that sees a lot of precipitation. Sealing a crawl space not only reduces damage caused by moisture, mold, and pests, but it also increases your home’s value. It can also save you money by reducing energy bills and avoiding costly repairs for structural or foundation damage.

The Washington, CT homeowners’ guide to basement waterproofing services

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