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Foundation & Waterproofing Services for Long Island Homes

One local team for the whole problem — foundation repair, basement waterproofing, crawl space encapsulation, concrete lifting, and new-construction waterproofing. Free inspections, written scopes, and a lifetime transferable warranty.

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What We Do

Complete Foundation & Basement Solutions

Whatever your home needs, we handle it end to end — diagnosis, repair, and prevention, all backed in writing.

01Foundation repair on a Long Island home

Foundation Repair

Cracks, settlement, and bowing walls — stabilized at the source with engineered piers, anchors, and carbon fiber.

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02Basement waterproofing on a Long Island home

Basement Waterproofing

Stop water for good with the right mix of interior and exterior systems — French drains, sump pumps, and crack injection.

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03Crawl space encapsulation on a Long Island home

Crawl Space Services

Seal out moisture, mold, and rot with full encapsulation — for cleaner air, warmer floors, and a healthier home.

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04Concrete lifting on a Long Island property

Concrete Lifting

Raise sunken slabs back to level in hours with polyurethane foam — a fraction of the cost and mess of replacement.

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05New construction waterproofing membrane

New Construction Waterproofing

Neptune Wet Suit™ certified — a seamless, flexible membrane that waterproofs new foundations for life.

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Questions

Frequently Asked Questions

Do you offer free inspections and estimates?
Yes — every job starts with a free, no-obligation inspection and a written estimate that lays out the recommended method, the price, and the timeline before any work begins.
We serve homeowners across Long Island — Nassau and Suffolk counties — as well as Queens and Brooklyn.
Yes. Foundation Crack Repair LLC is fully licensed and insured, and we're a certified RamJack installer and Neptune Wet Suit™ installer.
Our foundation stabilization installs carry a lifetime, transferable warranty — it stays with the home if you sell.
We schedule inspections quickly, often within a few days. Call 631-410-3388 and we'll find a time that works for you.

Not Sure Which Service You Need?

Book a free inspection — we'll assess your home and recommend the right fix, in writing. No pressure, no obligation.

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