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TRUSTED BY KATONAH, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon42
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Katonah

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

Serving Katonah, NY and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"I had my basement waterproofed almost 3 years ago by them and I had no issues since then with the basement flooding regardless of how much it rains. I highly recommend using American Dry Basement!"
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
6 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Contractors' Waterproofing
Contractors' Waterproofing
4.8(
62
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"I am so happy with the job that Greg and his crew did on waterproofing my basement. Before there was water seeping in all around. Now is completely dry! Greg was wonderful. So easy to deal with, answers all of your questions. Very easy to reach by phone. Very reasonably priced as well. His workers were in and out in one day and left the jobsite completely clean. What a relief to have a nice dry basement. Greg went above and beyond expectations and is completely professional. The best thing I did for my basement was hiring Greg."
30 YEAR OLD BASEMENT
AFTER WATERPROOFING
Vapor Barrier
Why Your Basement is Wet and Damp
Thies Is How We fix

+1

Response time8 hrs
11 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Tigasi Home Improvement LLC
Tigasi Home Improvement LLC
5.0(
11
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Katonah, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I contacted Fausto from Tigasi Insulation to discuss a project in my basement. He arrived on time, and from the beginning, I could tell that he was a professional who takes pride in his work. At the end of the job, Fausto personally asked me to inspect the work that had been completed. I was very impressed with the quality of his work and the excellent job he did. I highly recommend Fausto and Tigasi Insulation to anyone looking for professional and reliable service. Thank you, Fausto, for the great work!"
8 neighbors recently requested a quote
Avatar for Diggs Building Technologies Corp.
Diggs Building Technologies Corp.
4.9(
40
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Katonah, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"When it rained my basement would get 2-3 inches of water. Tim and his team redirected all of the drain pipes (5 in all), reshaped the slope of the land surrounding my house, planted grass seed, and left the yard spotless. Now my basement is drier than Arizona in mid-July. These guys are pros, they finished in a day. It was a pleasure to see these men work! Their price was more than fair. You can't go wrong with DIGGS! Thank you, Tim!"
Our Work
Our Work
Our Work
Response time1 day
Response rate96%
10 neighbors recently requested a quote
Avatar for Dirty Deeds Basement Waterproofing
Dirty Deeds Basement Waterproofing
5.0(
4
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Katonah, NY and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"Dean and his crew were professional, reliable, extremely neat/clean and went above and beyond, often, to make the sure work was completed to my satisfaction. They did small things not even required to make sure the entire basement area was much more than even expected. The basement has never been so dry in the 40 years I have lived here. I would hire them again in a heartbeat."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+24

Response time7 hrs
8 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for ProSeal Waterproofing
ProSeal Waterproofing
5.0(
8
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Katonah, NY and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Alex, the owner and lead contractor was a pleasure to work with. From start to finish the process was seamless. The waterproofing process was explained as well as the benefits from performing the work. Alex was personable, professional and knowledgeable. The pricing was very fair and competitive with the highest quality of workmanship."
Response time7 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
4.9(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Katonah, NY 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

581 neighbors recently requested a quote
Avatar for Elite Waterproofing Solution
Elite Waterproofing Solution
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Katonah, NY and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"Headly was very knowledgeable and professional. He was also very honest to tell me that the issue was not an emergency as I thought it was. He gave me a lot of information about the water in our basement and advised me to call him if it happens again after a heavy rain. He also checked out and cleaned my gutter while he was there."
Basement abatement
Basement abatement
Basement abatement
Basement abatement
Basement abatement

+7

Response time3 hrs
Response rate100%
8 neighbors recently requested a quote
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Basement Waterproofing questions, answered by experts

Access to commercial-grade products and equipment, ensuring thorough coverage and long-lasting protection.

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.

Water can seep into porous materials like wood beams, floor joists, and roof rafters within minutes, but they’ll need to see prolonged exposure before you have structural damage. Mold can start growing within 24 hours, and mold can eat away at the structural components over time. Wood rot is more of a concern, though. Wet and dry rot are fungal infections that set in in moist conditions and rapidly deteriorate wood, causing major structural damage within just a few months in some cases.

“Basement waterproofing” sometimes refers to applying a waterproof sealant to basement walls, in which case you would use a waterproof paint, often made of latex. However, there are many methods you can use to waterproof a basement, including exterior drainage systems, interior drainage systems, dehumidifiers, and more. As such, the materials you use can vary depending on the methods you use.

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.

The Katonah, NY homeowners’ guide to basement waterproofing services

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