Long Island Basement Waterproofing – Family Owned and Operated

Brookhaven Basement Waterproofing Services You Can Trust

Brookhaven Basement Drainage and Crawl Space Waterproofing Services

As one of the largest towns in all of New York State, Brookhaven, NY covers a wide range of neighborhoods, soils, and drainage conditions—from the coastal flood zones in Mastic Beach to the more elevated, tree-lined streets of Setauket, Coram, and Medford. That’s why no two waterproofing solutions here should ever be the same.

At ACM Basement Waterproofing, we’ve helped homeowners throughout Brookhaven—both along the South Shore and deep inland—protect their properties with custom-designed solutions that work for each home’s unique conditions. Whether you’re seeing water seepage in your basement after a Nor’easter or noticing musty air and soft spots in your crawl space, we’re ready to help.

Our team provides:
Free, no-pressure inspections tailored to your home’s location and structure
Permanent interior French drain and sump pump systems, including battery backups
Crawl space drainage for homes with low clearances
Foundation crack repair backed by our lifetime transferable warranty

From Shirley to Selden, Bellport to Blue Point, ACM is Brookhaven’s trusted name in basement waterproofing and foundation repair. We know the landscape. We know the risks. And most importantly, we know how to protect your home.

Brookhaven, NY Basement Waterproofing

If water is seeping into your basement, time is of the essence. The longer you wait to fix the problem, the greater the problem can become. Basement moisture can damage property, mold, rot, and insect and rodent infestation.

The solution is to keep water out of your basement with an interior waterproofing system. ACM’s waterproofing systems capture any entering water in your Brookhaven basement and remove it before it ever causes any issues.

The waterproofing system includes:
*French drain installed below the floor along the perimeter of your basement to capture water
*A sump pump connected to the french drain to expel any collected water
*An exterior drainage system to safely disperse any expelled water

We are proud of our basement waterproofing services in Brookhaven, and our customers are thrilled with the results. If you don’t believe us, just take a look at all of our online reviews. When you call ACM, you know you are calling the best basement waterproofing company in Brookhaven.

Foundation Repair in Brookhaven NY

Along with basement waterproofing, ACM offers foundation repair services in Brookhaven. We secure any bowing foundation walls in your basement using carbon fiber straps.

The straps keep the wall in place, preventing any further bowing or damage. Carbon fiber strap installation is also a much lower-cost option than replacing the entire foundation. But again, the key is time—the earlier you have ACM inspect and repair your foundation in Brookhaven, the less likely you will have to pay for an expensive foundation replacement.

Crawl Space Waterproofing in Brookhaven NY

You may have a crawlspace under your Brookhaven home instead of a basement. Like a basement, water in your crawl space spells disaster – mold, rot, and property damage that only grows worse over time. We prevent crawl space water just like basement water with an interior basement waterproofing system.

An interior french drain is installed along the perimeter of the crawl space, along with a sump pump and a discharge system. Any entering water is collected, channeled to the pump, and pumped out and away from your home, far enough away that it can’t cause any problems. ACM is your go-to solution if you live in Brookhaven and need a crawl space waterproofing expert.

Brookhaven Customer Reviews

While we’re still in the process of gathering customer reviews from Brookhaven, you can visit our testimonials page to see what customers from other towns have to say about our services. We take pride in the positive feedback we’ve received.

Getting Your Brookhaven Homes Ready

At ACM Basement Waterproofing, we simplify foundation repair by working closely with you, providing clear guidance and innovative solutions. Our top quality services ensure lasting protection for your home, with your peace of mind as our priority.

Brookhaven Borough Municipal Building
Phone: 631-451-8696
Location: Brookhaven Town Hall
1 Independence Hill
Farmingville, NY 11738
Office Hours: M – F 9:00 AM —  4:30 PM

Brookhaven, NY Links:
Town of Brookhaven NY




Local Brookhaven, NY Contractors for Your Home Construction Needs

Here’s a list of contractors who may assist with your home projects in Brookhaven; please note that while we provide this as a helpful resource, ACM does not specifically endorse any of them.

Plumber
NH Ross Inc., Plumbing, Drains, Cooling, Heating & Electrical
120 Middle Country Rd, Middle Island, NY 11953
631-397-0359

Electrician
M&I Electric & Technology Services
95 Hewlett Ave, East Patchogue, NY 11772
631-830-6533

Driveway Paving Contractor
Stone Rock Paving & Masonry
9 Lynwood Ave, Farmingville, NY 11738
631-839-1282

Landscaper
VC Landscaping LLC
14 Sheridan Dr, Shirley, NY 11967
631-790-1119

Masonry
Jac Bell Masonry Construction Corp
57 E Main St, Patchogue, NY 11772
631-618-5949

Let’s Fix the Basement Water in Your Brookhaven Home

Brookhaven is one of Suffolk County’s most expansive towns — and whether you’re in a quiet residential neighborhood or a growing area, protecting your property value matters. Basement water issues and foundation cracks don’t just affect comfort — they can impact resale and long-term investment. ACM offers expert waterproofing solutions that add security, value, and peace of mind. No gimmicks, no pressure — just reliable work from a team that knows Brookhaven. Let’s keep your home strong and dry, for today and the future.