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Long Island Chooses Us
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Linda Weiss profile picture
Linda Weiss
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We feel very fortunate to have found this company. I met with Mike regarding leaks in the basement. He assessed the entire house, gave me options and clearly explained the process. Everyone from Mike, to the secretary in the office to the workers were absolutely amazing. They did the work as promised, gave us a reasonable price, and left the place immaculate. We could not be happier with the results! This is a great family owned business. You can’t go wrong!
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rose smith profile picture
rose smith
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The work was done with the utmost professionalism and competence. The service representative was very thorough in examining the dehumidifier, air purifier and sump pump and provided any service needed including draining the pump.
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Craig Todaro profile picture
Craig Todaro
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Mark took it upon himself to come to my home and examine my issue himself. He is knowledgeable not only in basement waterproofing, but also in land grading, excavating and several other adjacent topics. While it was concluded my issue was not foundation oriented, he did not hesitate to propose several other creative ideas to help address my issue. He has a great disposition, and I would not hesitate to recommend his services to others.
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Linda Russo profile picture
Linda Russo
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I bought my house 24 years ago, and for 24 years I lived with water coming in to my finished basement. A few years back I hired another company to put in a French Drain System which never worked. As the storms got worse the water in my basement increased. Because of my previous experience I was hesitant to hire another company until I read about ACM and met Mark who was highly recommended by my Home Service Company. Mark spent about 2 hours explaining the process, and what was needed. In February 2025 ACM put a extensive French Drain System which included taking down the sheet rock walls, demoing tile and placing a membrane along the whole perimeter of the drain system. All of this work was completed in 3 days exactly what Mark said. The guys were professional, polite, and best of all they were careful to save my Radiant Heating System which was under the tile. Since the French Drain System was placed I have not had 1 drop of water coming into my basement. I am very grateful to Mark's ACM Company, and was able to refinish my basement without fear of water damage. I highly recommend ACM Basement Water Proofing to all who are having water problems with their basement.
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Maria Lacoste profile picture
Maria Lacoste
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ACM Basement Waterproofing did an excellent job in my basement, no more water intrusion. The job was handled professionally and on time. I am happy to recommend them.
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William Rothstein profile picture
William Rothstein
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I chose ACM because of their "Best of Long Island" award, and I'm glad I did. Mark's crew (led by Joe) installed an interior French drain and a sump pump in our basement. Six months later, we've had no problems with water. These guys know what they're doing.
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Links2282 profile picture
Links2282
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My wife and I would like to say thank you to Mark and his team for their excellent work installing a French Drain in our finished basement. For years we had to worry about flooding if we got a large amount of rain in a short time. The entire staff was totally professional. knowledgeable, competent and efficient. They were clean and caring and after each day they protected the whole worksite. Without a doubt, we would recommend them for all your basement waterproofing needs.
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Peter Webb profile picture
Peter Webb
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I called acm after finding water in the basement. Mark answered the call and quickly helped diagnose the issue. He guided me to check baseboard and sure enough a broken valve was causing this leak. It's good to find someone to help a homeowner without rushing to take their money. It's good to find a honest business man
Bethpage Best of Long Island Winner warded to ACM Basement waterproofing
Angi Super Service Award for ACM Basement Waterproofing in Long Island
Basement Health Association Star award given to ACM Basement Waterproofing in Long Island
Best of Long Island Award for Basement Waterproofing in Long Island
Angi Super Service Award for Basement Waterproofing in Long Island

Skilled Basement Waterproofing Specialists in Baldwin Harbor

Baldwin Harbor Basement and Crawl Space Waterproofing Solutions That Last

Water in your Baldwin Harbor basement or crawl space is more than just an eyesore — it’s a warning sign. Left unchecked, even small leaks can lead to major foundation damage, unhealthy mold growth, and costly repairs down the line. That’s why homeowners across Baldwin Harbor turn to ACM. With decades of experience, we specialize in basement waterproofing systems built to stand the test of time, keeping your Baldwin Harbor home dry no matter what Mother Nature throws your way.

Whether it’s sealing cracks, installing drainage systems, or protecting your foundation, our Baldwin Harbor team delivers real solutions — not quick fixes. Don’t wait for water problems to get worse. Contact ACM today and take the first step toward a safer, stronger home.

Baldwin Harbor Basement Waterproofing Customer Reviews

Customer reviews from Baldwin Harbor coming soon! In the meantime, take a look at our testimonials page for reviews from customers from other towns.

Basement Waterproofing in Baldwin Harbor

In Baldwin Harbor, many homes were built decades ago with foundation methods that were standard for the time but have known vulnerabilities today. Block foundations with hollow cores, thinner poured concrete walls, and older mortar joints all create predictable entry points for water. What held up fine for years can start letting water through as materials age and settle.

ACM Basement Waterproofing installs interior waterproofing systems designed to work with older foundation types. Perimeter French drains capture water at the base of the walls, directing it to sump pumps for removal before it spreads across the floor. Crack repairs and drainage channels seal off the specific weak points common in older construction. For Baldwin Harbor homes where the foundation has a few decades behind it, ACM’s systems provide modern protection for aging structures.

Crawl Space Waterproofing for Baldwin Harbor Homes

In Baldwin Harbor, a musty smell that seems to follow homeowners from room to room often traces back to the crawl space. Air doesn’t stay put beneath the house. It rises naturally through gaps in the subfloor, around plumbing penetrations, and through ductwork. When the crawl space is damp, that smell comes along with it, affecting air quality throughout the home.

ACM provides crawl space waterproofing in Baldwin Harbor that eliminates the source of those odors. Crawl space drains and sump systems remove water from beneath the house, reducing the damp conditions where musty smells originate. Once the moisture is under control, the air circulating into the home is cleaner and fresher without air fresheners or dehumidifiers working overtime to compensate.

Foundation Repair for Stressed Walls in Baldwin Harbor

Foundation walls in Baldwin Harbor can experience repeated stress from the soil around them. Certain soil types expand when they absorb water and shrink as they dry out. That seasonal cycle pushes against the foundation during wet periods and pulls away during dry spells, creating a back-and-forth pressure that leads to cracking and gradual wall movement.

ACM specializes in foundation repair for Baldwin Harbor homeowners, using carbon fiber reinforcement systems to stabilize walls affected by soil movement. Carbon fiber strips bond directly to the foundation, holding the wall in place regardless of what the surrounding soil does. Pairing foundation repair with interior waterproofing also helps manage moisture levels in the soil, reducing the expansion and contraction cycle that causes ongoing stress.

Getting Your Baldwin Harbor Home in Top Shape

At ACM Basement Waterproofing, we go beyond simply fixing your basement. We collaborate with you, offering clear guidance and innovative solutions to ensure long-term protection for your home. Your peace of mind is our top priority.

Baldwin, NY; Hempstead NY
Phone: 516-489-5000
Location: One Washington Street
Hempstead, NY 11550
Office Hours: 8 am to 4:45 pm

Baldwin, NY Links:
Town of Hempstead
Hempstead Building Links
Hempstead Online Permit Center

Trusted Local Contractors in Baldwin Harbor for Your Home Construction Needs.

Here’s a list of contractors who may assist with your home projects in Baldwin Harbor. Please note, this is provided as a starting point, and ACM does not specifically endorse any of these contractors.

Plumber
Pride Services
212 Maple Ave Unit R1, Rockville Centre, NY 11570
516-916-7988

Electrician
Scherner Electric Inc.
2790 Milburn Ave, Baldwin, NY 11510
516-623-5160

Driveway Paving Contractor
All Shore Paving Corporation
571 Waterview Rd, Oceanside, NY 11572
516-279-4591

Landscaper
JN Landscaping
212 Hudson Ave, Roosevelt, NY 11575
516-410-4053

Masonry
Lakeside Mason Supplies
781 Foxhurst Rd, Baldwin, NY 11510
516-223-6394

Baldwin Harbor’s Waterproofing Expert

You don’t have to live with the stress of a wet basement, musty crawl space, or cracking foundation any longer. At ACM, we’ve spent decades helping Baldwin Harbor homeowners protect and restore their homes — and we’re ready to do the same for you.

Reach out today to schedule a comprehensive inspection with our experienced team. We’ll walk you through the entire process, explain your options clearly, and design a solution tailored to your Baldwin Harbor home’s needs. Let’s work together to make your home dry, strong, and worry-free for years to come.

Protect Your Home Today

We make it simple, affordable, and stress-free — with guaranteed results.