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TRUSTED BY CORNWALL, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon21
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Cornwall

Avatar for Contractors' Waterproofing
Contractors' Waterproofing
4.8(
62
)

Serving Cornwall, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Gregg and his team were amazing. They work fast but efficient and very neat. His team is very polite and courteous. Gregg also made suggestions for utilizing and improving my basement. I cannot say how pleased I am with his work."
30 YEAR OLD BASEMENT
AFTER WATERPROOFING
Vapor Barrier
Why Your Basement is Wet and Damp
Thies Is How We fix

+1

Response time8 hrs
12 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Basement Systems Of New York
Basement Systems Of New York
4.3(
42
)

Serving Cornwall, NY and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"The entire team from estimate to completion were great! When an unforeseen problem arose they were responsive, punctual and thoroughly professional in taking care of the issue. What a pleasure to hire a company that takes pride in their work and making sure that the customer is completely satisfied. I highly recommend Basement Systems of New York."
Pouring A New Slab At Our Office - Bullville, NY
Calling A Last Minute Audible To Install A New Concrete Slab - Liberty, NY
Waterproofing A Walkout Basement With Our Patented Two-Stage Waterproofing System - Pine Bush, NY
Installing An Interior Waterproofing System With A Gravity Discharge - Holmes, NY
Knocking Down And Rebuilding A Foundation Wall - Kiamesha Lake,  NY

+7

Response time1 day
21 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for The A Team Waterproofing LLC
The A Team Waterproofing LLC
5.0(
5
)

Serving Cornwall, NY and surrounding areas

Approved

In business since 1999

Free estimates

Credit card accepted

Waterproofing, Retaining Walls, Pavers and Concrete. The A Team Waterproofing in Harriman, New York specializes in high-quality interior and exterior waterproofing for residential and commercial properties. In every project, I use only the best products available on the market. These include PolyDrain, perforated PVC piping, filter fabric, and Thoroseal items. Additionally, I am able to match the price offered by other contractors in my area.

Project Photos
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Project Photos
Project Photos

+14

Avatar for Diggs Building Technologies Corp.
Diggs Building Technologies Corp.
4.9(
40
)

Serving Cornwall, 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!"
Newburgh
Newburgh
Montgomery
Liberty
Saugerties

+1

Response time1 day
12 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Tigasi Home Improvement LLC
Tigasi Home Improvement LLC
5.0(
10
)

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Fausto and his team were great! I would have no hesitation in using them again. I had the attic space of a two-family building insulated with blown-in cellulose. I had already used Tigasi Home Improvement for a smaller Rockwool basement ceiling job and they were very reasonable in price, thorough and clean so I turned to them for this project. Again they gave me what I thought was a reasonable quote for removing old insulation, sealing gaps and then insulation, and Fausto explained the process well. He was very patient and understanding with my tenants' concerns, as access was via a drop down ladder in one unit's hallway. I also wanted an extended platform for storage in the attic and they were able to sort this out for a reasonable price.The team kept the job site extremely tidy and they were pleasant throughout. I would not hesitate to use Tigasi gain for another project. Plus I found them to be just really, really nice guys! A before pic and some after here."
13 neighbors recently requested a quote
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)

Serving Cornwall, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Was able to schedule a free consultation immediately and they looked through the basement to talk through possible mold issues. Turned out we didn’t have a mold problem but he answered all of our questions and was very kind!"
Response time2 days
225 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for The Basement Transformer
The Basement Transformer
3.3(
8
)

Serving Cornwall, NY and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

The Basement Transformer is proud to provide innovative basement waterproofing, basement finishing, crawl space, and foundation repair services to improve the comfort and safety of your home. We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guarantee your satisfaction!\n

Basement Transformation
Unfinished Basement
Response time1 day
15 neighbors recently requested a quote
Recommended by83%of homeowners
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Basement Waterproofing questions, answered by experts

The most cost-effective foundation repair is using masonry patches and sealants to seal foundation cracks and offer some support to prevent further damage. These methods are used to fix minor foundation cracks quickly. However, they’re not suitable as a long-term solution, and they only offer minimal stability. On average, masonry patches and sealants cost $500, but a sealant like an epoxy crack injection can total over $2,000. If you’re handy and only looking for a temporary solution until you contact a local foundation repair contractor for a more permanent one, you can save hundreds by DIYing this repair.

Ductwork sweats due to a temperature difference between the air inside the ducts and the surrounding air, similar to how a cold drink develops condensation in the heat. This sweating is a sign that your HVAC system is not operating at peak efficiency. The best way to keep ductwork from sweating is to wrap it in proper insulation, which also improves your system's energy efficiency. Another option is to close off your crawl space and install a dehumidifier to dry the air and lower its dew point.

Ideal humidity conditions generally range from 30% to 50%, with 45% considered optimal humidity for most homes. If your humidity levels drop below that range, you can turn your dehumidifier off. Additionally, suppose the temperature where the dehumidifier is installed falls below 60 degrees Fahrenheit. In that case, it's best to turn it off and unplug it since cooler temperatures can cause the unit's coils to freeze.

Yes, crawl spaces can attract bugs, especially since moisture tends to build up in the space, and moisture attracts pests. A good way to prevent pest infestation in your crawl space is to install a vapor barrier—called crawl space encapsulation—on the interior to seal the space, along with a French drain or some other kind of foundation drainage system outside to keep runoff out of your crawl space. You can also seal foundation cracks and repair damages to cut off access to pests.

Signs include persistent dampness, mold or mildew presence, musty odors, and visible water stains. If any of these occur, it is advisable to contact a professional for an inspection.

The Cornwall, NY homeowners’ guide to basement waterproofing services

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