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Best 5 Foundation Repair Companies in Islip, NY

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Last Updated October 31, 2023

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Your Islip home's well-being depends on the health of its foundation. A construction company can discover issues such as shifting and cracking before they endanger your home's structural integrity. We've compiled the best Islip foundation repair companies, so you can find the right one for you.

5 Best Foundation Repair Companies in Islip

Expert Delivery and Assembly Logo
Top rated

Expert Delivery and Assembly


Services Offered

Leveling Driveways Foundation Repair Garages Retaining Walls Concrete Foundation Installation Sidewalks Sealing Maintenance Foundation Replacement


  • Transparent pricing
  • Free quotes
451 Sunrise Hwy #9, West Babylon, NY 516-445-4944
Lake Norman Long Island Excavating Logo

Lake Norman Long Island Excavating


Services Offered

Foundation Replacement Foundation Repair Retaining Walls Driveways Leveling Concrete French Drains Grading Foundation Installation Foundation Waterproofing Masonry


  • Helps educate customers
  • Good customer service
  • Transparent pricing
488 Nichols Rd, Hauppauge, NY 631-686-5516
All Island Restoration Logo

All Island Restoration


Services Offered

Garages Retaining Walls Foundation Replacement Grading Inspection Mold Remediation Foundation Repair


  • Punctual service
  • Transparent pricing
  • Helps educate customers
700 Union Pkwy Ste 9, Ronkonkoma, NY 631-780-5332
Fortitude Contracting Logo

Fortitude Contracting


Services Offered

Foundation Installation Garages


  • Transparent pricing
  • Helps educate customers
  • Good customer service
548 Sunrise Hwy, West Babylon, NY 631-509-9478
Martino Homes & Construction Logo

Martino Homes & Construction


Services Offered

Foundation Replacement Driveways Maintenance Retaining Walls Garages Foundation Repair Leveling Foundation Installation


  • Good customer service
  • Helps educate customers
2155 Ocean Ave Suite A, Ronkonkoma, NY 631-603-6518 martinohomesandconstru...

More Local Foundation Repair Companies

9 Brothers Building Supply

User Reviews: 4.5/5

1670 Islip Ave
Brentwood, NY 11717

E & M Waterproofing

User Reviews: 4.5/5

1217 Chicago Ave
Bay Shore, NY 11706

Metco Remodeling Corp

User Reviews: 4.4/5

577 Sunrise Hwy
West Babylon, NY 11704

Maio Building Corp

User Reviews: 4.4/5

436 Central Ave
Bohemia, NY 11716

Chrislandscaping&basement Waterproofing corp

User Reviews: 4.7/5

24 Eugene St
Melville, NY 11747

APM O’Neill and Sons

User Reviews: 4.4/5

903 Old Medford Ave
Medford, NY 11763

Complete Basement Systems

User Reviews: 4.4/5

13 Rockwood Ave
Massapequa, NY 11758

Selden Concrete Corp.

User Reviews: 4.6/5

28 Pine St
Selden, NY 11784

Healthy Basement Systems

User Reviews: 4.6/5

79 Cedarhurst Ave
Medford, NY 11763

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Facts about Islip
Average Max Temp: 55°F
Average Min Temp: 49°F
Average Monthly Precipitation: 3.90"
Percent of Homes With Basements 74%
Average Cost of Foundation Repair: $2,884
Average Cost of Foundation Waterproofing: $1

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Common Causes of Foundation Problems in Islip

A few factors can contribute to foundation issues. These are the most widespread ones for Islip residents:

  • Soil composition: Soil with large sand or clay concentrations is highly expansive. In the heavy rainfall Islip gets, the soil absorbs moisture like a sponge, then releases it in dry seasons. The constant expansion and contraction presses against nearby foundations, even if the foundations stay dry.
  • Aging plumbing: Islip has its fair share of older homes, with a median building year of 1964. Many of these properties use cast-iron plumbing. When the pipes start to erode, leakage could reach your foundation and even pool beneath it.
  • Improper modifications: Roofing or landscaping work that wasn't completed to standard could lead to your foundation settling.

How to Choose the Best Foundation Repair Company

Your home's foundation is crucial to its structural integrity, so it's important to work with a quality foundation repair provider. Evaluate each firm using the following criteria:

Licensing and Experience

New York's state government doesn't issue contracting licenses, but cities often choose to require them of foundation companies and other builders. For example, New York City requires foundation and excavating contractors to obtain a "Safety Registration Number" with a concrete work endorsement. They also need to register as a general contractor or home improvement contractor. SYNTAX ERROR IN: You can also get a sense of a company's experience through [RandomChoice||what its representatives say|the information its team gives you|the details its representatives share]. [RandomChoice||Ask|Inquire] about {"its [RandomChoice||inspection processes|inspection methods], [RandomChoice||local codes|local code requirements|local building regulations], permit-pulling procedures, fees"|shuffle_list("and")}.

Contractor websites are some of the best places to do your research. Usually, a foundation company will show how long it's been in the industry. It might also publish articles to help interested parties.

Customer Reviews

When you're researching a company's reputation, head to its Better Business Bureau (BBB) profile. There, you can find its "letter grade" rating and a list of customer reviews, both complaints and positive experiences. Remember that negative feedback doesn't necessarily mean a contractor is unqualified. BBB reviews also show how companies resolve complaints. A proactive team that strives for positive outcomes is a good one. Steer clear of a contractor if you don't see good communication about problems.

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Frequently Asked Questions About Foundation Repair in Islip

How much does foundation repair cost in Islip?

You could pay about $2,900 on materials and labor for your foundation project. Ultimately, your expenses will depend on your specific needs and the extent of the issues.

What's the time to complete a typical foundation repair job?

The time to complete a foundation repair job usually depends on the contractor's efficiency, the repair method used, and the extent of the damage. Foundation repairs can take 2-5 days for minor issues to 2-4 weeks for more extensive problems. It's crucial to consult with a professional to get a more accurate estimate for your specific situation.

Is foundation repair covered under my homeowners insurance?

Homeowners insurance typically doesn't cover foundation repair that results from normal settling, sinking, or wear and tear. However, you might have a claim if the damage happened due to a covered peril or disaster. Check your specific flood, earthquake, fire, and homeowners insurance policies and speak to your agency for precise information.

What preventive measures can I take to avoid foundation issues?

You can take several preventive measures to reduce the chances of foundation issues:
  • Ensure your home's gutters and downspouts are properly installed and direct water away from your foundation to avoid water accumulation.
  • Irrigate the soil around your foundation consistently, especially during dry spells, to prevent expansion and shrinking.
  • If possible, grade the soil around your home to slope away from your foundation, promoting water drainage and minimizing the risk of foundation issues.
  • Inspect your foundation for cracks, and repair any issues immediately.

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More Foundation Resources

National Foundation Repair Ranking Methodology

Mold Remediation Cost Guide


U.S. Census Bureau (American Communities Survey)