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Top-Rated Foundation repair specialists in Katonah - Updated Nov 2026

Avatar for Rock Solid General Contractors Corp
Rock Solid General Contractors Corp
4.9(
215
)

Serving Katonah, NY and surrounding areas

Approved

In business since 2001

Free estimates

Customers say: Quality work

"James and his coworkers did a wonderful job. Rock Solid installed a concrete patio for me and they did it in a timely and professional manner. I am very happy with their work and I would use them again and I would recommend them again."
Response time3 days
Response rate100%
5 neighbors recently requested a quote
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Concrete Foundation - Repair

Serving Katonah, NY and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Chuck Stofko was very informative. Was patient in answering all my questions. Spent along time with me reviewing the process and the steps needed to waterproof my basment. I highly recommend him."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

177 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Terra Ferma Contracting, LLC
Terra Ferma Contracting, LLC
4.6(
70
)

Serving Katonah, NY and surrounding areas

Approved

In business since 2006

Free estimates

Customers say: True professional

"Oscar and his team did an exceptional job on our home’s masonry projects including repairing our stone steps and foundation. His team did the job perfectly. They are personable, responsive, neat and do superior work. I would hire again and recommend."
Process
Pergola
Unilock pavers outdoor Ligthing
Unilock pavers
Patio

+7

Response time8 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)

Serving Katonah, NY and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"Let me start by telling you my backstory. I live in a house built in 1929, it has a stone foundation. It wasn't until Hurricane Sandy that I felt the effects of a house that had no waterproofing and we had about three feet of water. We did a little bit of mitigation, and had no more problems for awhile. More recently, NY had five days of non stop rain and the walls in basement and flooring barely held it together. So that's when I knew I really had to do something. Every time we heard the weather report we would keep checking that basement and our little water pump. The water pump did ok, but we had wet vacs and worked like a team, but the water was coming up through the floors. Just a little 2-3 inches can cause so much damage. This is climate change, a lot of my friends were suffering from flooding for the first time and it wasn't going to get any better. So that was it, my husband and I interviewed four different places. They were all professional, but there was something about the detailed 2 hour interview that Scott Cort, one of their top inspectors did with us and we knew that was the place we were going to deal with. Plus he dealt with a multitude of questions from my husband and didn't flinch. He was patient, showed us exactly what they would do to protect the basement from flooding. He saw how stressed I was and just plain tired of this. It was a very comprehensive plan. Scott explained the lifetime warranty. The system is self-cleaning and requires zero maintenance. There is also a clog free guarantee. It included a PITBOSS waterpump with a wifi system and a backup battery in case the power goes out. He also told me that there would be very little dust. And there was very little dust. It only took two full days of his crew working nonstop. I was a bit nervous about cutting the walls, but he picked up the phone every time I called. If he was busy, he texted me right away and got back to me in 30 minutes. (And I call a lot). I am happy with the results. My contractor checked it out and said American Dry did a great job after dropping by to see the results. And most of all, we can sleep when it rains. We are ready!!! By the way, I have never written a review this long, but I needed to shout them out, and it was competitively priced!! Thank you AmericanDry, thank you Scott Cort. It was a pleasure!"
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
3 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Concrete Foundation - Repair

Serving Katonah, NY and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Aaron Lenker add Corbin Gillichbauer of Groundworks leveled concrete walks around my corner lot in Montoursville Pa. They arrived around noon time and were finished about 5 1/2 hours later. They did their work very professionally. They did an excellent job. I would rate their work 5 of 5 stars."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

455 neighbors recently requested a quote
Avatar for Diggs Building Technologies Corp.
Diggs Building Technologies Corp.
4.9(
40
)

Serving Katonah, NY and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"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!"
Our Work
Our Work
Our Work
Response time1 day
Response rate96%
8 neighbors recently requested a quote
Avatar for Downrite Construction, Inc.
Downrite Construction, Inc.
5.0(
11
)
Concrete Foundation - Repair

Serving Katonah, NY and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"I had a leak in my water main. We did not know the origin. Sean, the owner came and spend several days exploring the options to repair the leak. It was finally determined the leak was under the foundationand it would be easier and cheaper to replace the whole line. (it was always sprining a leak and needed to be replaced.) He worked very hard to resolve the issue as quickly and economically as possible. He and his workers were a great to work with. Gold star all around."
Response time1 day
Response rate92%
23 neighbors recently requested a quote
Avatar for Regina Landscaping Corp
Regina Landscaping Corp
4.9(
16
)

Serving Katonah, NY and surrounding areas

Approved

In business since 2006

Free estimates

Customers say: True professional

"Repairing my driveway paving done excellently ! Yard projects generally done well, and it helps to talk to the guys as they do the work to be sure they understand what you want !"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+121

Response time3 days
Response rate100%
Recommended by53%of homeowners
Avatar for Economy Handy Carpenter, LLC
Economy Handy Carpenter, LLC
4.6(
331
)

Serving Katonah, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Emergency services offered

"Nixon repaired two very extensive cracks in our Corian sink that others did not want to deal with. He also fixed more problems that we were not aware of but could readily see when he showed them to us. Nixon saved us the cost of replacing the whole Corian kitchen counter top and potentially future large water damage. He is easy to deal with and provides prompt service."
Response time10 hrs
66 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Tigasi Home Improvement LLC
Tigasi Home Improvement LLC
5.0(
11
)

Serving Katonah, 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."
8 neighbors recently requested a quote
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