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  • Written by
    Max Peterson
  • Fact Checked
  • Updated

Your Islip home's well-being relies on the health of its foundation. You should call a foundation professional as soon as possible after noticing cracking or shifting walls. We've gathered the top Islip foundation repair companies, so you can find the right one for you.

10 Best Foundation Repair Companies in Islip

Brands are algorithmically curated from a database of local service providers near you. We require a minimum number of Google reviews and average ratings for provider inclusion.

Top Rated Provider
Lake Norman Long Island Excavating Logo
Top Rated

Lake Norman Long Island Excavating

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 138 reviews


488 Nichols Rd, Hauppauge, NY 11788

(631) 686-5516

www.lakenormanexcavating.com
Chrislandscaping&basement Waterproofing corp Logo

Chrislandscaping&basement Waterproofing corp

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 47 reviews


24 Eugene St, Melville, NY 11747

(516) 439-9462

chriswaterproofingcorp.com
Complete Basement Systems Logo

Complete Basement Systems

4.6/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 33 reviews


13 Rockwood Ave, Massapequa, NY 11758

(516) 334-0000

www.completebasementsystems.com
Healthy Basement Systems Logo

Healthy Basement Systems

4.5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 282 reviews


79 Cedarhurst Ave, Medford, NY 11763

(631) 581-0808

www.healthybasementsystems.com

Selden Concrete Corp.

4.3/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 29 reviews


28 Pine St, Selden, NY 11784

(631) 730-0039

seldenconcretecorp.business.site
Atlantic Shores Builders & Developers, Inc. Logo

Atlantic Shores Builders & Developers, Inc.

4.2/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 26 reviews


156 E Main St, Huntington, NY 11743

(631) 754-0023

www.atlanticshoresinc.com
On The Level Concrete Solutions Logo

On The Level Concrete Solutions

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 15 reviews


300 Lydia Pl, Jericho, NY 11753

(516) 514-2547

otlconcretesolutions.com

A.M. Shield Waterproofing Corp.

4.7/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 191 reviews


33 Albertson Ave, Albertson, NY 11507

(516) 294-8400

amshieldcorp.com

Arid Restorational Technologies Inc.

4.4/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 15 reviews


10 George Ave, Shoreham, NY 11786

(631) 680-6460

www.aridrestoration.com

Professional Home Remodeling Inc.

5/5

Ratings are based on our detailed proprietary methodology and review standards.

Based on 532 reviews


1184 Hempstead Turnpike, Franklin Square, NY 11010

(718) 316-9221

www.phr-ny.com

Facts about Islip

  • Average Max Temperature:
    55°F
  • Average Min Temperature:
    49°F
  • Average Monthly Precipitation:
    3.90”
  • Percent of Homes With Basements:
    74%
  • Average Cost of Foundation Repair:
    $2,885
  • Average Cost of Foundation Waterproofing:
    $3,028

Common Causes of Foundation Problems in Islip

A few typical reasons why Islip homeowners deal with foundation troubles include:

  • 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 eroding, leakage could reach your foundation and even pool beneath it.
  • Topsoil Frost: When temperatures plummet, topsoil freezes rapidly and lower layers can't expand, forcing upper layers to heave and permanently damage infrastructure.
  • 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 puts pressure on nearby foundations, even if the foundations keep dry.
  • Tree Roots: Tree roots can enter a home's foundation through crevices, and may apply force that results in your foundation fracturing, pipes leaking, and overall structural destabilization.

How to Choose the Best Foundation Repair Company

Your home's foundation is crucial to its stability, so it's important to work with a trustworthy foundation repair provider. Assess each company using the following factors:

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. You can also get a sense of a company's experience through the details its representatives share. Ask about its inspection methods, local code requirements, permit-pulling procedures, and fees. One of the best ways to assess a company's reputation is to go to its website. Look for how long the company has operated and what credentials its team holds. Many leading companies offer educational content for future customers.

Customer Reviews

We recommend looking into the company's Better Business Bureau (BBB) profile to determine whether it's accredited and has a good customer review score. You can check whether other homeowners have reported satisfaction or filed complaints. Pay special attention to what customers say about company warranties. Remember that negative feedback doesn't necessarily mean a contractor is incompetent. BBB reviews also show how companies resolve complaints. A proactive team that works toward excellent outcomes is a good one. Don't work with a business if you don't see clear communication about problems.

Foundation Repair Cost in Islip

The cost of foundation repair can range widely depending on the severity of the issues and what needs to be done to resolve them. For minor foundation fissures and settling issues, you may pay as little as $1,800. However, if there is more significant damage, the average cost will likely fall around $2,900. More complex jobs involving tunneling, helical piers, or major mudjacking could cost $6,900 or more.

This table shows the average foundation repair costs for common issues.

Common Foundation Repair ServicesAverage Cost
Crack Repair$343
Leak Repair$2,742
Stabilization$4,742
Underpinning$1,314
Waterproofing$3,028

Frequently Asked Questions about Foundation Repair in Islip

More Foundation Resources

National Foundation Repair Ranking Methodology

Mold Remediation Cost Guide

Sources

U.S. Census Bureau (American Communities Survey)

To share feedback or ask a question about this article, send a note to our Reviews Team at reviewsteam@thisoldhousereviews.com.

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