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Top-Rated House leveling pros in Nassau - Updated Nov 2026

Avatar for Adirondack Basement Systems, Inc.
Adirondack Basement Systems, Inc.
4.6(
107
)
Concrete Foundation - RaiseConcrete Foundation - Repair

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 rate100%
8 neighbors recently requested a quote
Paramount Home Solutions
4.9(
84
)
Concrete Foundation - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"I had a drainage pipe put in the front of my house. Farmers Foundation. If I could give them a 10 Star Rating, I would! This company, Paramount Home Solutions, were professional, stuck with the work at hand, well mannered, helpful with questions I had, they cleaned up around the work area and they worked hard to give me a satisfaction of a job well done. I will be calling them again with another project, ok two more projects. I had fun and I even had front row seats to see how they did the job....did every thing they said they where going to do! I will defiantly recommend this company to family and friends. Job Well Done, Guys!!!! See y'all soon!"
Response time8 hrs
Response rate88%
40 neighbors recently requested a quote
Avatar for C & J Custom Builders Inc
C & J Custom Builders Inc
4.8(
25
)
Find a Custom Home Builder

Serving Nassau, NY and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"C&J did an incredible job completely gutting and remodeling our 1895 farmhouse. This was a huge 8-month job with the variety of complications and required changes an old house can throw at you; throughout the process Craig and Jerry offered excellent design suggestions, collaborated very well with our architects, worked diligently to stay on budget, and each day demonstrated craftsmanship and professionalism of the highest level. C&J’s team of subcontractors and designers are excellent too. These people are the best the building trade has to offer: conscientious, skilled, creative, and a pleasure to work with. Hoping to have them back soon to remodel the guest cottage and garage! See Photos here: [*** Link removed ***]"
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+36

Response time2 days
Response rate100%
Recommended by100%of homeowners
Avatar for All Dry Basement
All Dry Basement
4.2(
22
)
Concrete Foundation - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"When I contacted All Dry I was gun shy. This would have been my 4th contractor I would have to deal with. All theee prior told me something completely different and tried to take advantage of my limited knowledge. From the get go, All Dry Basement made me feel extremely comfortable. Todd and his team answered my questions thoroughly and were always available for my questions . The work that was done was amazing, he was punctual everyday and worked some nights until 8pm until the work was completed. It is like a different world in the crawlspace, the smell is gone, all of the debris were cleaned out and. Brought to the dump, a vapor seal was installed, a dehumidifier for the moisture, one entryway to the crawlspace was closed up and the main entrance was re worked for easier access. Blocks from the foundation were grouted because the blocks were dead, , floor joists were spay flames and the House is now Warmer. I couldn’t be more please wth the quality of work All Dry Basement did at my home. They were professional and amazing and I would 100% recommend them. My stress level has decreased a million percent because after two years I found a company that was honest from the get go and their work shows it!!!! HIRE THEM FOR YOR CRAWLSPCE AND BASEMENT NEEDS. Do not look any further."
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+7

Response time1 day
Response rate100%
21 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
5.0(
6
)
Concrete Foundation - RaiseConcrete Foundation - RepairConcrete - Injection Leveling - Mudjacking+1 more

Serving Nassau, NY and surrounding areas

Approved (Corporate)

In business since 2019

Free estimates

Warranties offered

"We cannot say enough good about Dylan, Seth and Tim. 3 very hard workers. Lifting heavy heavy loads of concrete and stone up my and down my cellar and porch steps. They never stopped for breaks. Great workers. Respectful and pleasant and knew their job requirements. Very careful with doors, floors etc It?s a messy job. ThankYou"
Foundation
Foundation
Foundation
Foundation
Foundation

+14

227 neighbors recently requested a quote
Avatar for LaBello's Masonry and Waterproofing, LLC
LaBello's Masonry and Waterproofing, LLC
3.5(
186
)
Concrete Foundation - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Professional quality work at a reasonable price. Very dependable outfit. When they say theyâ ll be there, theyâ ll be there. Workers are courteous and respectful. Chad is truly a person of his word. Hard to find this level of reliability in the construction business."
LaBellos Masonry
Foundation Repair
Basement and foundation
Exterior block wall
Exterior waterproofing

+1

Response time7 hrs
63 neighbors recently requested a quote
Recommended by74%of homeowners
Grady's Painting Plastering/Construction
2.0(
174
)
Concrete Foundation - Repair

Serving Nassau, NY and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"This was a very involved plaster repair and remediation job, in a very old house. Grady is the only person (or company) who was willing to take on the job and drive all the way from Pennsylvania to our home in Northern Virginia. There are very few people who do this kind of work anymore (we really searched) and he is an expert in his field. We needed to work around his schedule, because he is in demand in the tri-state area, so it took awhile to schedule the work to begin... but it was worth it."
Response time11 hrs
Response rate100%
Recommended by57%of homeowners
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House Leveling FAQs, answered by experts

Concrete leveling is absolutely worth it if you have sunken concrete slabs and want to restore them to level, especially if the slab is part of your home foundation. Concrete leveling is less than half the price of replacing concrete sidewalks, patios, walkways, and pool decks, and it’s about a quarter of the cost of replacing a foundation. If you also treat the underlying problem, it can be a worthwhile and permanent solution.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

Most projects take 1-3 hours, with immediate usability after completion.

It’s best not to perform mudjacking in the winter unless the ground temperature remains above freezing. Freezing temperatures can cause the slurry to harden too quickly, compromising its strength and longevity. Concrete is also more susceptible to cracking and splitting in cold temperatures, so there’s a higher risk of damaging the slab during the drilling and lifting process in winter.

The Nassau, NY homeowners’ guide to house leveling services

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