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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%
28 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

"First I want to say.  I love my new patio.  Everyone who has seen loves it.  It came out better that I expected.  If you are like us we had, pictures, images and ideas of what we wanted our patio to look like.  He made all our wishes and desires come to life.  We  first contratced DMAC Design & Development for the job which turned out to be a nightmare.  DMAC stole our money and never completed the work.  You can imagine how distrusting and upset we were now looking for another contractor to fix and complete the work DMAC left us with.  We inteviewed few potiental contractors, but what won Mike he job was his understanding our we felt and knowing we were very nervous after our recent experience getting another contractor.  I was ready to give up completely and just forget about getting a patio done this year.  Estimates were high and we alreay we already down $9,000 and nothing to show for it.  However, Mike requested no money until the the job was complted in full.  How could we refuse an offer like that and it put to rest all our fears, concerns and worrires immediately.  Not to mention his knowlegdge and very professional manner.  Mike corrected the damage and garbage left by DMAC.  He brought all the materials and didnt receive any payment from us till nearly all the work was finished.  He was at home everyday on time once the work began and until it was done.  He completed a job that other contractors said would cost us twice as much and longer to complete in a week.  Mike dug the yard up and built a new foundation for the pavers, built a curved, retaining wall, steps in the center of it and in the sides. He even placed a pattern design pavers with a fire pit on one side of the patio and in addition a circular design kit was placed in the cneter of the patio.  We also didn't have enough to cover the additional requested we made of steps and firepit which was not in the original contract.  It was something when the patio was being done we decided we wanted done.  Mike did it for us and allowed us to pay him for the additions we requested after the XMAS.  He was honest, fair and responsible.  Is it really great to now there are still some honest contractors out there with execellent skilld.  Ff you are need of a Masonry look no further he the one you want.  My only dont is I should have first checked Angie List and hired Mike from the very beginning."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

10 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

"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
27 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%
12 neighbors recently requested a quote
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 Contractors' Waterproofing
Contractors' Waterproofing
4.8(
62
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cornwall, NY and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Credit card accepted

"Gregg did a fantastic job repairing our basement foundation, and at a very competitive price. He and his excellent crew showed up on time every day, worked quickly and efficiently, and did a great clean up job. He was with them from start to finish, unlike most contractors who just show up in the morning to drop off their workers. Gregg is an old-school craftsman who obviously takes great pride in his work, and heâ s also someone who thinks outside the box. His company motto is â Exceeding Expectations,â and thatâ s exactly the experience we had. Weâ re totally satisfied with the job he did, and would not hesitate to use him again. Happy to give him our very highest recommendation!"
30 YEAR OLD BASEMENT
AFTER WATERPROOFING
Vapor Barrier
Why Your Basement is Wet and Damp
Thies Is How We fix

+1

Response time8 hrs
14 neighbors recently requested a quote
Recommended by96%of homeowners
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(
11
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

Tigasi Home Improvement LLC service is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customer's interests, and make their concerns the basis of our business.

8 neighbors recently requested a quote
Avatar for Jaguar Paving Corp.
Jaguar Paving Corp.
4.4(
7
)
Foundation Drainage - Install or Replace

Serving Cornwall, NY and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

We pride our company on flexible pricing, reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business! Book with us online or feel free to give us a call today!

New Asphalt Driveway with a new Edge (Belgian Blocks)
New Asphalt Driveway
New Asphalt Driveway
New Asphalt Driveway
Patio Pavers

+22

Response time1 day
Response rate96%
10 neighbors recently requested a quote
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Foundation Repair questions, answered by experts

Yes, foundation repairs are worth it if you have a significant problem or see signs that could worsen if not dealt with. If your foundation fails, your home can lose up to 20% of its value. Protecting your home from serious structural damage and avoiding more costly repairs later is well worth the money.

No, hairline cracks in concrete are generally not a problem as they do not impact the strength and longevity of the concrete. Generally, cracks less than 0.3 millimeter wide don’t impact the structure. Hairline cracks can grow over time and weaken the structure, such as in a home foundation. Some hairline cracks can also cause leaks in a foundation. It’s important to watch the cracks to see if they grow. Contact a concrete contractor if you notice cracks exceeding 0.3 millimeter wide.

You can use a level or straight-edge to test for plumb foundation walls and a level slab, a level or a ball to check for sloping floors inside your home, and a hygrometer to look for moisture in your underhome area. Aside from these DIY tests, it’s important to get a foundation repair specialist or structural engineer to test the foundation to see if it’s supporting your structure properly. They can determine if the loads on the concrete are uneven or need reinforcement.

If your foundation repair claim gets denied, the first step is to carefully read over your policy and denial letter so you understand the reason for the denial. Then, gather evidence and documents that can support your case and appeal the denial with your insurance company. If your insurer does not eventually honor your claim, you may want to file a complaint with the insurance department in your state. In some cases, it may make sense to work with an attorney and file a lawsuit.

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. 

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.