Basement Waterproofing in Greenwich, CT

Real Protection for Your Home—With No Gimmicks

We help Greenwich homeowners stay dry with basement waterproofing, crawl space sealing, sump pump systems, and foundation crack repair. Our solutions deliver 20x more value than shallow competing systems. We’re just better.

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Serving All of Greenwich, CT

We work in every ZIP code and neighborhood in Greenwich, including 06807, 06830, 06831, 06836, and 06870.

Dry basement with waterproofing system installed in Greenwich CT

Worried About a Wet Basement?

We install a lasting basement system that quietly drains groundwater before it rises, keeping your home dry, clean, and healthy—without the headaches of temporary fixes or high-maintenance add-ons.

Signs it's time to act:

Water on the basement floor after storms
Musty smells or mold starting to appear
Wall stains, peeling paint, or wet corners
Previous fixes that didn’t work or wore out

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Sealed crawl space with concrete floor in Greenwich CT home

Is Your Crawl Space Damp or Useless?

We transform dirt-floored crawl spaces into clean, dry, usable areas with a sealed concrete layer that keeps out moisture for good—no more mold, pests, or soggy insulation. No plastic sheets. No constant dehumidifiers.

Why Greenwich homeowners call us:

Strange smells rising through the floor
Visible moisture or condensation in the crawl space
Animals or insects getting inside
Wasted space that could be used for storage

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Installed sump pump system in a Greenwich basement

Need a Reliable Sump Pump Setup?

Your waterproofing system is only as good as your sump pump. We install professional-grade pumps that move water fast and keep your basement dry—even if the power goes out. Optional Wi-Fi backup systems alert you instantly.

Common issues we solve:

Basement flooding when storms hit
Old or loud pumps that don't work well
No battery backup during outages
Frozen or clogged outdoor discharge lines

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Foundation crack repair in Greenwich CT basement

Noticed Cracks in Your Basement Walls?

Cracks let water in. Our proven repair method seals the crack and reinforces the surrounding wall—giving you a dry, stable foundation you can count on, without messy caulk or failed patches.

Common problems we fix:

Cracks growing over time or letting water in
Failed repairs that never lasted
Gaps around windows or corners
Moisture streaks or wall discoloration

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Why Greenwich Homeowners Choose Us

Maintenance-free systems—no annual contracts
SuperCrete concrete slab finish included
Engineered solutions below the floor
Fully trained in-house crews, not subcontractors
20x the value. True peace of mind. We’re just better.

Real Homeowners. Real Results.

5-Star Waterproofing Reviews

    
 
 
      Vincent and his crew was professional from day one. I also appreciate the attention to detail. They were here on time, instantly Vincent and crew figured out how they would be able to get equipment & supplies in/out. They worked non-stop, they cleaned up as they worked & did a excellent job. I watched a bunch of videos from American Dry Basement and did some research before making a selection and they delivered.
  
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   S. Tang 
 31 December 2025
 
 
 
     Very professional job. Set up work area Very well with lots of protection, and clean up was fantastic
  
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   Vincent Montalvo 
 11 December 2025
 
 
 
     Had a excellent experience all the way around From the very start. We made an appointment with Tina and it was for 2 weeks down the road . Dennis came promptly and was knowledgeable and friendly We decided to go with American because of Dennis. We were a bit afraid as the knowledge of breaking the interior floor was frightening but it was done professionally. The guys who did the job were great. So thank you Dennis and Tina and your crew Eddie
  
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   Edward Silard 
 20 October 2025
 
 
 
     I had renovated my Basement which cost me a lot of money  and year after we had a rain storm for a week long and there came water coming from  outside throughout the walls. It was into the Boiler room which was considered unsafe. The basement was repaired a second time and we just ended up where we started  but still no fix. I  became very frustrated and decided to search the internet for a basement fixer. I called about two companies before but wasn’t satisfied with there reviews. Then I came across American basement and read the reviews and got a little biography of the Company, I decided to reach out to them and met with the Boss. Stephen He was so  much a people person , so professional and polite . He presented two options  of labor and cost to my husband and I to choose from  ;which was good. The Team was introduced to us and we were ready to go because we trusted them.We were offered life time warranty , they worked with your budget. They also give a time line and the work was done. I can say we have no regrets and no leakage. I’m so grateful. I will Truely recommend them to you.  Mrs Cameron. 7/02/25.
  
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   Samonie CameronS 
 2 July 2025
 
 
 
     Very impressed with the manager Paul who came out to my house to evaluate some cracks in my foundation. He clearly had great experience with both fixing and installing foundations, and recommended a cheap and simple DIY fix to dealing with my issues. Due to his honest assessment, we decided not to go forward with any work, but I believe American Dry would be an excellent contractor and has demonstrated great integrity.
  
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   James Sullivan 
 27 June 2025
 
 
 
     American dry basements water proofed my basement in spring 2024. With this very wet spring/ early summer 2025...not a drop of water or moisture in my basement! These guys are the best....I highly recommend their system over other companies systems.
  
  Posted on Google  
 
   
 
   roxane Mckay 
 20 June 2025

Let’s Fix It Right

We’ve worked in homes throughout Greenwich, from Cos Cob to Old Greenwich. Request your free inspection and let us design the right solution for your home.

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