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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, Jake and Jesse were phenomenal to work with! They performed structural repair to the box beam and main beam. They showed up early everyday and worked diligently to finish the job to a high quality standard. Their customer service and reliability can't be beat. I would recommend Diggs to anyone with foundational repair needs!"
Foundation Repair
Foundation Repair
Foundation Repair
Foundation Repair
Foundation Repair

+17

Response time12 hrs
Response rate85%
25 neighbors recently requested a quote
Avatar for MFS MASONRY
MFS MASONRY
4.8(
81
)
Poured Concrete Wall - Repair

Serving Cornwall, NY and surrounding areas

Approved

In business since 1997

Free estimates

Customers say: Quick response

"As usual with Mike and his crew, the job went great. It was a fair price and Mike supplied the inspiration for great retaining walls. The job took only one day because his crew worked their tails off. The end result is an 100% improved back yard. Our hom"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

11 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Basement Systems Of New York
Basement Systems Of New York
4.3(
42
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Cornwall, NY and surrounding areas

Approved

In business since 1993

Free estimates

Warranties offered

"They gave us an estimate which I was happy with and arrived on the scheduled day to complete the work.  One of the cracks was much larger than we thought so they needed to com back with a different product.  They came back but with an insufficient amount to complete the job.  It took a long time to complete but it was sufficient to keep water out of the basement.  Just realize that tax is not included in the estimate."
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
31 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

"To summarize quickly, I cannot speak highly enough of Diggs Building Technologies. I am absolutely blown away by what they accomplished and would hire them again without hesitation. Worth every penny. For the past 5 years, I have been restoring/rennovating a 1890 Balloon Frame Colonial in Tillson, NY. While the original house foundation was extremely well built and well-mainted, I canâ t say that much about the 2 story enclosed porch put on in the 1920â sâ ¦ The foundation was crumbling; the first floor walls were bowing out and the floor had settled 3+ inches. To further complicate the matter, all the mechnicals of the house (water, sewage, and gas) ran through that back porch foundation making the project extremely complex in scope. Despite these massive issues on the first floor, the 2nd floor of the porch was in great shape and it was important for us to find a builder who could rebuild the entire bottom half of the structure while also preserving the top. This was no small feat. Much to my surprise, Tim and his crew (alongside their engineer) were able to do just that. With precision, they navigated the mechanicals, removed the old foundation and floor and then went on to replace both of those elements. While doing this, the room above stayed untouched. Not one crack on the walls, not one bow in the floor, and shockingly - all 4 of the original casement windows still opened and close. Overall, they did an excellent job and I would hire them without hesitation again. If you are dealing with any foundation issues, I encourage you to hire Tim, Jake, and Jesse. They are the only team I would trust doing this type of work."
Our Work
Our Work
Our Work
Response time1 day
Response rate96%
14 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
1 neighbors recently requested a quote
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, 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 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."
11 neighbors recently requested a quote
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Showing 1-10 of 236
Foundation Repair questions, answered by experts

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. 

Most of the time, normal foundation settling will present as thin cracks in the foundation and minor creaks in the floorboards. In contrast, you can identify foundation issues by wide or uneven foundation cracks, horizontal or step-shaped gaps on the foundation wall, or cracks that go around corners of your foundation. Foundation problems can also cause changes in your living area, like increased humidity, uneven or sloping floors, nail pops in drywall, countertops pulling away from the wall, and windows and doors getting stuck. When in doubt, call in a professional to identify the underlying cause.

There are a few ways to reinforce a pier and beam foundation, including installing additional piers and beams for added support and performing underpinning, which redistributes the weight of your home further down into the ground where frost and soil expansion don’t pose a threat to the foundation. The best option for reinforcement varies based on your particular home and the soil conditions beneath it.

Some foundation repairs are permanent, like underpinning and exterior drainage systems like the French drain. These fixes address the underlying problems—insufficient support from the soil and hydrostatic pressure on your foundation walls, respectively—so they can last for many decades, making them “lifetime fixes.” There are other solutions to address these issues that will last for up to a decade, making them temporary. These include slabjacking to raise concrete slabs back into place and dampproofing to reduce the water in the soil that interacts with the concrete foundation.

Visible cracks, scaling, flaking, and uneven surfaces indicate a bad concrete job. Additional signs vary depending on the project. You may notice poor drainage or even exposed rebar. Quality issues result from using the wrong concrete, rushing the work, or inexperienced workers completing the job.

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.