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Find Foundation repair specialists in Nassau

Avatar for Adirondack Basement Systems, Inc.
Adirondack Basement Systems, Inc.
4.6(
100
)

Serving Nassau, NY and surrounding areas

Approved (Corporate)

In business since 1998

Free estimates

Warranties offered

"It was a complex project. They were very careful with their procedures and raised sunken concrete sections next to the house and around a pool to allow for drainage. They filled the major cracks. They were courteous and on-time over several days. After many years the water in the basement problem has been resolved."
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SaniDry Sedona Dehumidifer
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+9

Response time12 hrs
Response rate89%
4 neighbors recently requested a quote
Avatar for Alpha Excavation LLC
Alpha Excavation LLC
4.9(
10
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

Alpha Excavation LLC 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 customers' interests, and make their concerns the basis of our business.

Kemp Addition
Kemp Addition
Kemp Addition
Kemp Addition
Kemp Addition

+20

1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for All Dry Basement
All Dry Basement
4.4(
21
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"It’s been 5 months since Todd and his crew encapsulated my crawl space but I wanted to wait to give a comprehensive review of their services and the outcome of their work. The short answer is: I’m thrilled! Here’s the story: Last summer I bought a small home which has a crawlspace. As soon as the weather turned humid I noticed a distinctly musty/earthy odor. When I had central air installed, all it did was exacerbate the situation by blowing the air from the crawlspace all over the house. To say I was distressed is an understatement. I wasn’t sure encapsulation was the answer but after calling around and doing some online research there didn’t seem to be any other obvious solutions. While I had built one new house (full basement) and gut renovated another (slab foundation) I found myself in new territory with an older home (60s) and a crawlspace. Doug came in and did a consultation. I had a lot of questions and deep dove the technical details. I’m sure it was trying for both Doug and Todd, but every question I had was answered promptly and thoroughly (something other companies failed to do). I decided to go for a full encapsulation solution with a commercial humidifier, drain, and some underlayment in particularly rough areas. Todd (and his assistant Kyle) did outstanding work and every unexpected issue they encountered was handled quickly and professionally. When they found rotting wood forms that were left from when the concrete supports were poured, they pulled them out. When they found some rough areas of construction debris around the perimeter, they cleaned that out. And when Todd found some minor seepage in the corner of the crawlspace that he traced it to the outside where a downpipe was punctured and draining too close to the house, he went and bought some new downpipe and repaired it--charging me just for the materials. To say that these guys went above and beyond is an understatement. Any homeowner knows that feeling of having made a horrible mistake and I wasn’t sure the crawlspace issue could be fixed. Not only did Todd and his crew do an amazing job but they put me at ease throughout the process. They were punctual, tidy, thorough and just generally great to work with. I couldn’t recommend them more highly! (Now if only I could find other contractors who are just as good…) P.S. The other reason I waited so long to write a review is that in my particular situation, there is little separation between the air of the crawl space and the rest of my small house. So after it was first encapsulated, there was a strong smell of… well kind of a mix between plastic and dryer sheets. It was not terribly unpleasant but distinct and noticeable (and I’m very sensitive to smells). If anyone else experiences this, I recommend buying a large fan for the crawlspace and using it periodically to move the air from the crawlspace out of the house and move fresh air in. (I bought a cheap contractor fan that pivots upwards and put it on a smart home remote). Over the course of a few months it dissipated and I’m thrilled to report that I don’t notice it at all now."
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+7

Response time1 day
13 neighbors recently requested a quote
Recommended by100%of homeowners
Delanson Gardens
4.6(
79
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"I ended up choosing to do it myself. It was to put a French drain in my back yard. It cost me only $700 but if I had them come in it would have cost me like $2500. It was the price that really threw me off. As for their overall outlook they seemed to be a very decent company. It was very good, I had no problems with them. Their price was way above what I expected to pay.  I wasn’t happy with the estimate."
Response time3 days
Response rate90%
1 neighbors recently requested a quote
Avatar for Everything Green Lawn & Landscape
Everything Green Lawn & Landscape
4.6(
17
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2019

Free estimates

Emergency services offered

"This company does exceptional work and I would highly recommend them. My patio came out exactly how we discussed. I also hired this company to do my lawn care as well. My lawn never looked so good!"
Patio
Seat Wall
Lawn Care
Lawn Care
Lawn Care

+29

Response time2 days
56 neighbors recently requested a quote
Recommended by75%of homeowners
Avatar for Clearwater Power Washing and Weatherization
Clearwater Power Washing and Weatherization
5.0(
4
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

I am a locally owned, and operated business that is committed to excellence in every aspect of word. I uphold a standard of integrity bound by fairness, honesty, and personal responsibility. My distinction is the quality of service that I bring to the customer, which would be the same way I would treat family, or a close friend. \n\n** WE ARE FULLY INSURED! **\n\nCALL US TODAY AT: \n518-948-0465 \nTO LEARN MORE ABOUT OUR VETERAN DISCOUNT RATES!

2 neighbors recently requested a quote
Avatar for LaBello's Masonry and Waterproofing, LLC
LaBello's Masonry and Waterproofing, LLC
3.5(
184
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Chad, and his team, did a fantastic job on the foundation of my home. They were very professional, polite, and did a very thorough job. His pricing was very fair with high quality workmanship. I highly recommend LaBello's Masonry and Waterproofing."
LaBellos Masonry
Foundation Repair
Basement and foundation
Exterior block wall
Exterior waterproofing

+1

Response time12 hrs
39 neighbors recently requested a quote
Recommended by75%of homeowners
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