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TRUSTED BY CORNWALL, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon22
    Verified foundation repairs reviews

Find Foundation repair specialists in Cornwall

Avatar for Diggs Building Technologies Corp.
Diggs Building Technologies Corp.
4.9(
43
)
Foundation Drainage - Install or ReplaceConcrete Foundation - RepairPoured Concrete Wall - Repair

Serving Cornwall, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Credit card accepted

"Tim explained the project details in advance and how this should alleviate basement flooding. Tim and crew, excavated to below slab on 2 sides of house per plan; repaired cracks and holes in foundation, applied waterproofing and perimeter drainage with pump. Backfilled and leveled work site and seeded grass. Crew was professional and hard working. First rainfall few days later showed everything working perfectly."
Foundation Repair
Foundation Repair
Foundation Repair
Foundation Repair
Foundation Repair

+17

Response time12 hrs
Response rate85%
26 neighbors recently requested a quote
Avatar for Basement Systems Of New York
Basement Systems Of New York
4.3(
42
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"The foundation was shifting. They drilled holes, put anchors. They put in a moisture barrier. They totally remedied it. They were professional. They have a whole team of architects. They were great! I recommend them to anyone who has basement problems. Very timely, professional."
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
32 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Diggs Building Technologies Corp.
Diggs Building Technologies Corp.
4.9(
40
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"Tim explained the project details in advance and how this should alleviate basement flooding. Tim and crew, excavated to below slab on 2 sides of house per plan; repaired cracks and holes in foundation, applied waterproofing and perimeter drainage with pump. Backfilled and leveled work site and seeded grass. Crew was professional and hard working. First rainfall few days later showed everything working perfectly."
Our Work
Our Work
Our Work
Response time1 day
Response rate96%
13 neighbors recently requested a quote
Luis & Sons Landscaping and Construction, Inc.
4.6(
72
)
Concrete Foundation - Repair

Serving Cornwall, NY and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Project Details: I had a couple flagstones that had come loose from my concrete walkway and wanted to get them replaced before this winter's snow started. Review: Luis contacted me same-day that the request went out. He came by my property to review the project later that day. After providing a verbal estimate he told me that he could get it taken care of the following morning. He arrived the next morning on-time and completed the work within 3hrs and included filling some cracks with concrete for no additional charge. The only reason I didn't give 5 stars across the board was that he tried to upsell me on ripping out and replacing the whole walkway for a while before I explained I just wanted to repair. I will likely hire him again for future concrete work and actually have asked him to quote me on a retaining wall replacement."
Wall
Response time2 days
Recommended by96%of homeowners
Avatar for ProSeal Waterproofing
ProSeal Waterproofing
5.0(
8
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - Repair

Serving Cornwall, NY and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Alex was amazing!! We had a crack in our foundation that another company attempted to repair numerous times. We were fortunate enough to hear about ProSeal and I am happy to report not only did Alex repair the crack to near perfection but the work was done timely, neatly and his customer service skills are top notch. I would HIGHLY recommend ProSeal for all of your foundation needs."
Response time7 hrs
Response rate92%
6 neighbors recently requested a quote
Avatar for The A Team Waterproofing LLC
The A Team Waterproofing LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairFoundation Drainage - Install or Replace

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
Project Photos
Project Photos
Project Photos
Project Photos

+14

6 neighbors recently requested a quote
Avatar for Tigasi Home Improvement LLC
Tigasi Home Improvement LLC
5.0(
10
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"Fausto and his team did an amazing job ripping out old fiberglass and installing new spray in. They also made a custom drywall cover for the exposed pipes. All done in 1.5 days. Less expensive than the comp. Would use again. Great to work with."
13 neighbors recently requested a quote
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Showing 1-10 of 235
Foundation Repair questions, answered by experts

A sinking foundation can be lifted, most often by installing piers to re-level and support the weight of the house. Depending on the cause and extent of the sinking, other methods to lift a foundation include underpinning and mudjacking. Consult a foundation repair pro to determine the best way to lift your sinking foundation. 

The best solution to fix a foundation crack in your basement floor depends on the underlying cause. If you just have hairline cracks from settlements that are no longer growing, the best option is to seal them with a crack sealant. If the cracks continue to grow, one edge rises above the other, or there are signs that water is getting in through the crack, a professional repair will be necessary. Depending on the root cause, your professional may employ foundation underpinning or some other type of stabilization, seal the cracks, or install a drainage system.

Although some concrete cracks are cosmetic, others can be more serious. Cracks wider than ⅛ inch or that extend through the slab are serious and can cause structural damage. If you notice these types of cracks in your concrete patio, contact a local contractor who installs concrete patios to inspect the damage and determine how to fix it.

Violating building codes can lead to a number of consequences, including fines, citations, and even being required to demolish the structure and start over. If your house isn’t compliant with code requirements, you can also run into trouble when it comes time to get homeowners insurance or sell your house. Following all applicable building codes will avert costly consequences.

You could DIY the work, but unless you have plumber’s knowledge for identifying and fixing a slab leak and specialized equipment in your tool shed, attempting to DIY your slab leak repair isn’t a good idea. It’s simply not something that the average homeowner can take on themselves, regardless of how many successful DIY projects they’ve got under their belt. You could, however, do something simple like foundation waterproofing yourself to save some money on the post-repair work.

The Cornwall, NY homeowners’ guide to foundation repairs

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