11 Best Foundation Companies in Cornwall, NY

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Last Updated: February 25, 2025

Repairing your foundation requires a substantial time and money investment. However, ignoring foundation problems can lead to significant and costly issues. Homeowners in Cornwall might wonder if they'll be able to keep living in their house while repairs are going on, and how long the repairs might take.

To help, we've put together a guide to top foundation service providers in your area. Keep reading to find the best foundation repair companies in Cornwall, New York.

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  • Offers free in-person and virtual evaluations
  • 87+ years of industry experience
  • All repairs backed by a lifetime transferable warranty

Top 11 Best Foundation Companies in Cornwall

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

Blue Umbrella Waterproofing

Blue Umbrella Waterproofing Logo

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541 Oakwood Ave, Roselle Park, NJ 07204 (908) 574-1140 blueumbrellawaterproofing.com

Free quotes

Good customer service

Transparent pricing

Punctual service

Helps educate customers

Services Offered

Mold remediation
French drains
Driveways
Repair
Grading and leveling
Retaining walls
Sump pumps
Concrete
Sealing
Crawl space encapsulation
Waterproofing
Inspection

City Suburb

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9708 101st Ave, Queens, NY 11416 (718) 849-8999 citysuburbinc.com

Helps educate customers

Good customer service

Free quotes

Services Offered

Sump pumps
Driveways
Retaining walls
Waterproofing
Masonry
Repair
Grading and leveling
Crawl space encapsulation
Sidewalks
Concrete
Mold remediation

United Waterproofing

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18 Highview Rd, Ridgefield, CT 06877 (203) 501-5053 unitedwaterproofing.com

Transparent pricing

Good customer service

Punctual service

Helps educate customers

Free quotes

Services Offered

French drains
Concrete
Mold remediation
Repair
Inspection
Retaining walls
Sump pumps
Crawl space encapsulation
Waterproofing
Grading and leveling

Quality Dry Basements

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18 Cannon Dr, Newtown, CT 06470 (203) 529-3737 qualitydrybasements.com

Punctual service

Transparent pricing

Good customer service

Helps educate customers

Free quotes

Services Offered

Mold remediation
Sealing
Waterproofing
Repair
Crawl space encapsulation
Sump pumps
Grading and leveling
Inspection
Retaining walls

Brick Tech Contracting Corp

Brick Tech Contracting Corp Logo

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2855 Cropsey Ave, Brooklyn, NY 11214 (718) 200-0699 bricktechnyc.com

Free quotes

Punctual service

Transparent pricing

Helps educate customers

Good customer service

Services Offered

Waterproofing
Concrete
Masonry
Repair
Retaining walls
Driveways
Inspection
Sidewalks
Mold remediation
Sealing

Basement Waterproofing Solutions and Mold remediation

Basement Waterproofing Solutions and Mold remediation Logo

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71 Ionia Ave, Staten Island, NY 10312 (718) 761-3698 basementwps.com

Good customer service

Transparent pricing

Free quotes

Punctual service

Helps educate customers

Services Offered

Inspection
Sump pumps
Mold remediation
Crawl space encapsulation
French drains
Grading and leveling
Retaining walls
Repair
Concrete
Sealing
Waterproofing

Healthy Way Waterproofing & Mold Remediation

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181 New Rd, Parsippany-Troy Hills, NJ 07054 (862) 205-2566 healthywaynj.com

Transparent pricing

Free quotes

Good customer service

Services Offered

Concrete
Mold remediation
French drains
Masonry
Grading and leveling
Waterproofing
Sump pumps
Retaining walls
Repair
Sealing
Crawl space encapsulation
Inspection

Professional Home Remodeling Inc.

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1184 Hempstead Turnpike, Franklin Square, NY 11010 (718) 316-9221 phr-ny.com

Transparent pricing

Free quotes

Services Offered

Sump pumps
Sidewalks
Concrete
Crawl space encapsulation
Waterproofing
Masonry
Sealing
Driveways
Grading and leveling
Mold remediation
Retaining walls
Repair

Vulcan Basement Waterproofing

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User Rating

8 Oak St, Clifton, NJ 07014 (800) 542-7234 vulcanwaterproofing.com

Helps educate customers

Transparent pricing

Free quotes

Services Offered

Grading and leveling
Concrete
Retaining walls
Mold remediation
Crawl space encapsulation
Masonry
Waterproofing
French drains
Repair
Sealing
Sump pumps

Sundahl Waterproofing

Sundahl Waterproofing Logo

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User Rating

1 Madison Ave, Larchmont, NY 10538 (914) 834-9212 sundahlwaterproofing.com

Helps educate customers

Free quotes

Good customer service

Transparent pricing

Services Offered

Sealing
Concrete
Waterproofing
Inspection
Retaining walls
Sump pumps
Mold remediation
Crawl space encapsulation
Repair

Excel Masonry Contractor

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Our Rating

User Rating

102-21 Astoria Blvd, Queens, NY 11369 (347) 331-7600 masonrycontractorny.com

Helps educate customers

Good customer service

Punctual service

Free quotes

Services Offered

Inspection
Grading and leveling
Waterproofing
Driveways
Concrete
Crawl space encapsulation
Sealing
Masonry
Retaining walls
Sidewalks
Repair
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on foundation companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Foundation Repair Company

Working with a qualified foundation repair business is important for properly evaluating the damage and completing repairs correctly. We recommend focusing on these key factors.

Experience

Look for a reliable local foundation company with significant experience in successfully fixing all foundation types. Technicians should have expert-level understanding of current repair methods and materials. Contact the company to ask how long it’s served your community.

Reputation

Looking through online reviews, checking the Better Business Bureau, and requesting local references helps verify that a company regularly provides quality work and good service. Pay attention if you see multiple complaints about poor service or faulty repairs.

Licensing and Insurance

Only hire providers that are properly licensed, bonded, and have both workers compensation and liability insurance. There are no state-level licensing requirements for general contractors in New York, but there may be city or county regulations, so be sure to check with your local government. You can look up a company's New York business license on this website. There may be additional requirements for contractors to do certain concrete work.

Warranties

Pick a provider that offers warranties of 10+ years that you can transfer to a new owner if you sell and, if possible, lifetime guarantees to fully back its foundation repair services. This displays faith that their repairs will be high-quality and long-lasting and provides protection should problems come up later.

Questions To Ask Foundation Repair Companies

As you evaluate potential foundation repair companies, make sure to ask detailed questions such as:

  • What foundation flaws did you find during inspection that may be causing the issue? The response should have easy-to-understand explanations and solutions. If a provider offers an unclear answer, it may be trying to bill you for unnecessary work.
  • What warranties do you provide? Reliable companies generally provide labor and materials warranties for at least 10 years.
  • Can you provide a complete written project scope and cost estimate? Asking for a quote in writing helps shield you from unexpected costs.
  • What options do you offer for financing? Providers often offer payment plans for larger foundation repairs.
  • How long will the repairs realistically take? Look for providers that provide reasonable estimates.
  • What repairs would you recommend for my situation, and why? Your contractor may offer options such as carbon fiber, wall anchors, and steel piers. By asking, you can get an idea of what solutions a company offers and compare between providers.

Taking time to carefully evaluate foundation repair contractors will help homeowners find the right company for their needs. A company that can thoroughly answer these questions is likely one that offers durable, high-quality repairs. Promptly fixing foundation issues helps prevent further structural damage.

Frequently Asked Questions About Foundation Repair in Cornwall, NY

There are certain signs that your foundation needs repairs. These might include:

  • Visible crumbling or cracking of your foundation
  • Uneven ground-level or basement floors
  • Bowing, buckling, or cracked walls
  • Door frames or window frames that are skewed or tight
  • Cracks in your basement floor
  • Cracks in your driveway

On average, Cornwall homeowners spend roughly $2,642 on foundation repair. The total cost of foundation repair will vary greatly depending on a number of factors. Things like the size of your home, the type of repair needed, and the extent of the damage will all play a part. The easiest way to determine how much a job could cost is to reach out to a local foundation repair expert and schedule a free inspection and estimate.

Types of foundation repair include leak repair, crack repair, stabilization, underpinning, and waterproofing.

For both leak repair and crack repair, a technician will come to your home, perform an inspection, and use various measures to remedy leaks or cracks. The cost of these procedures will vary greatly depending on the size and root cause of the problem.

Stabilization reinforces bowing walls by inserting carbon fiber or steel strips. The amount you spend will depend on the material used and the number of strips required. The cost of underpinning also varies. This process, also called piering or leveling, involves leveling your foundation by underpinning it with concrete piers; the cost will depend on how many piers are used.

If you're looking to waterproof your foundation or basement, we recommend looking for a waterproofing specialist. This process might include indoor waterproofing, outdoor waterproofing, or both.

If you're constructing a new house, have a soil report completed. This report contains information regarding how well your soil can support a foundation, and can offer you a heads-up about any potential future issues. If you have concerns about an existing house, a few hundred dollars will cover an inspection and report by a structural engineer. They can alert you to any issues that could use some attention, and advise you on how to avoid future problems.

You also want to make sure that the moisture around your foundation is appropriate. As Cornwall sees more rain than many other places, keep an eye on your gutters and landscaping to make sure too much water isn't getting into your soil or foundation. Also, be on the lookout for leaky gutters or pipes, so you can get them repaired promptly.

Your foundation repair provider should be the one obtaining the permits. You can request that the company provide a detailed explanation of the steps in its process and to see the paperwork and permits it has acquired to ensure everything is properly authorized per Cornwall regulations.

You should ask your foundation repair company about this issue before committing to any project. Typically, yes, you should be able to remain in your home while foundation repairs are underway.

Although some foundation issues may seem small and not worth the cost to repair, when left untreated, they can cause larger and more expensive problems down the road. Foundation issues can also have underlying causes which are not readily apparent until after a professional inspection. It's important to repair these underlying issues as soon as possible. For these reasons, we recommend you don't procrastinate on foundation repairs.

Other Cornwall, NY Home Services

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