What is concrete lifting?

It's the process of raising sunken concrete using polyurethane foam injection.

Driveways, sidewalks, patios, pool decks, garage floors, and interior slabs.

When can I use the concrete again?

Typically within 15–30 minutes after injection.

Is it cheaper than replacing concrete?

Yes — usually a fraction of the cost of full replacement.

How long does foam last?

It's a long-term solution that won't wash out or degrade like older methods.

Crawl Space Services Repair & Encapsulation.

From moisture and mold to sagging floors and structural damage — we fix the root problem and permanently protect your home with sealed, conditioned crawl space systems.

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See Common Signs

Get Your Crawl Space Sealed by the Experts

What happens in your crawl space doesn’t stay there. Moisture, mold, and rot from below travel up through your floors into your living space — affecting air quality, energy bills, and structural integrity. Encapsulation seals the space off and creates a clean, dry, controlled environment beneath your home.

Common Crawl Space Problem Signs

Most homeowners never go into their crawl space, but problems down there show up upstairs as bouncy floors, allergy flare-ups, and high energy bills. Here are the most common signs — click any to learn more.

Tech installing a crawl space jack post under sagging joists

Sagging Floors

Soft, bouncy, or visibly dipping floors usually mean failing supports under the house. Click to see the fix.

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Crawl Space Humidity

60%+ humidity in the crawl space rots framing, ruins insulation, and contaminates indoor air.

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Tyvek-suited crew remediating a crawl space

Mold in Crawl Space

Black, white, or fuzzy growth on joists and subfloor. Spores travel up into living-space air.

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Damp crawl space with hanging insulation

Wet Crawl Space Insulation

Sagging, falling, or wet fiberglass isn’t insulating anything. It’s holding moisture.

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Crawl Space Repair Solutions

Crawl space problems compound — moisture leads to rot, rot leads to structural failure. We address every layer of the problem with a coordinated set of systems built to last.

Clean encapsulated crawl space with white vapor barrier

Crawl Space Encapsulation

Heavy-duty (80 mil) vapor barrier seals the floor, walls, and piers from ground moisture and outside air. Permanent, durable, and pest-resistant.

Adjustable Support Jacks

Steel support posts replace failing wood supports and can lift sagging floors back to level. Adjustable for future settlement.

Vapor Barriers

Reinforced polyethylene sheeting prevents ground moisture from rising into the crawl space. The foundation of any encapsulation system.

Crawl Space Dehumidifiers

Energy-efficient dehumidifiers maintain a controlled relative humidity, eliminating the conditions that cause mold, rot, and pest infestations.

Drainage & Sump Pumps

Interior perimeter drains and sump pumps remove standing water before it can cause damage — required for any wet crawl space before sealing.

We get it right the first time, every time. Our solutions are built to last — backed by lifetime warranty.

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Award-Winning Service

Don't take our word for it — hear from Long Island homeowners who trusted Foundation Crack Repair with their biggest investment.

5.0 Rating · Based on verified Google Reviews

"Tyler's crew showed up on time, explained everything in plain English, and finished the job a day ahead of schedule. Best contractor experience I've had on Long Island."

Mike R.
‍Huntington, NY

"Honest assessment, fair price, and they backed it with a real lifetime warranty. Two years later: zero new cracks. Highly recommend."

Jennifer L.
‍Smithtown, NY

"We had three other quotes — Foundation Crack Repair was the only team that actually inspected before quoting. Pro work, fair price."

David K.
‍Massapequa, NY

"Knew the issue, fixed it right, cleaned up after. Tyler answered every question without making me feel like an idiot. Five stars."

Sarah P.
Babylon, NY

G Verified on Google Reviews

FAQs About Crawl Space Services

What is crawl space encapsulation?

Crawl space encapsulation is the process of sealing a crawl space with a heavy-duty vapor barrier, closing vents, and controlling moisture with a dehumidifier. This creates a dry, conditioned environment.

Why should I encapsulate my crawl space?

Encapsulation prevents mold, wood rot, and structural damage while improving indoor air quality, making floors warmer, reducing energy costs, and deterring pests. It’s a long-term solution that protects the home and adds value.

How much does crawl space encapsulation cost?

Crawl space encapsulation pricing varies based on the size of the crawl space and current conditions. Generally, most encapsulations are between $4,000 and $30,000.

How long does encapsulation take?

Most crawl spaces can be fully encapsulated in 2–6 days

Can you encapsulate a wet crawl space?

Yes — but we first address drainage or water issues before sealing the space.

Fix It Now, Pay Over Time

Affordable Financing Available
So the fix doesn't have to wait.

Foundation problems only get worse (and more expensive) the longer they're ignored. We offer low monthly payment options for qualifying projects — ask about financing during your free inspection.

Learn About Financing

Or Call 631-410-3388

Local Crew. Local Pride. Long Island Roots.