Bayport Basement Waterproofing

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Long Island Chooses Us

Linda Weiss

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!

rose smith

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.

Craig Todaro

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.

Linda Russo

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.

Maria Lacoste

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.

William Rothstein

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.

Links2282

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.

Peter Webb

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

Customized Basement Waterproofing Systems in Bayport

Bayport Basement and Crawl Space Waterproofing Solutions That Last

At ACM, we believe basement waterproofing, crawl space repair, and foundation protection are investments in your Bayport home’s future — not just short-term fixes. Long before water becomes visible, moisture can silently weaken foundations, damage insulation, and lower air quality throughout your home.

That’s why we approach every project with long-term protection in mind. Whether you’ve already spotted signs like cracked walls and damp floors, or just want peace of mind before problems start, our experienced team serving Bayport is ready to help. Contact ACM today to schedule an inspection and discover the difference a dry, secure Bayport home can make.

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Bayport Basement Waterproofing Customer Reviews

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

Basement Waterproofing in Bayport

In Bayport, some homeowners already have a sump pump in the basement but still deal with water problems. The pump runs when the basin fills, but water continues to appear along walls or across the floor. The issue is often that nothing is directing groundwater to the pump. Without a perimeter drainage system feeding the basin, water enters through cracks and joints faster than it can be collected.

ACM Basement Waterproofing installs complete interior waterproofing systems that make sump pumps effective. Perimeter French drains intercept water at the foundation edge and channel it directly to the sump basin. Crack repairs and drainage channels address specific entry points. For Bayport homes where a pump alone hasn’t solved the problem, ACM’s systems connect the pieces so water gets captured and removed before it spreads.

Crawl Space Waterproofing for Bayport Homes

Crawl spaces in Bayport sometimes hold water long after a storm has passed. Rain ends, the yard dries out, but puddles remain under the house for days or even weeks. Without drainage, that water has nowhere to go except slowly back into the soil or up into the air as humidity. The longer it sits, the more damage it does to floor joists and the more moisture works its way into the home above.

ACM provides crawl space waterproofing in Bayport that gives standing water a way out. Crawl space drains collect water at ground level, and sump systems pump it away from under the house. Removing water quickly rather than waiting for it to evaporate protects structural framing and keeps humidity from building up beneath the home.

Foundation Repair for Wall Movement in Bayport

Foundation walls in Bayport can be affected by more than just soil and water. Mature trees planted near the house sometimes contribute to wall problems over time. Roots grow toward moisture along foundation walls, and large root systems can pull water from the soil unevenly, causing it to shift and settle. Both factors add pressure and movement that eventually show up as cracks or bowing.

ACM specializes in foundation repair for Bayport homeowners, using carbon fiber reinforcement systems to stabilize walls regardless of what caused the movement. Carbon fiber strips bond directly to the concrete, stopping further deflection and holding the wall in place. Pairing foundation repair with waterproofing also helps manage soil moisture around the foundation, reducing the conditions that attract root growth and cause uneven settling.

Getting Your Bayport Home Ready

At ACM Basement Waterproofing, we make foundation repair a stress-free experience by providing clear guidance and innovative solutions that protect your home long-term. Your peace of mind is our priority.

Bayport; Town of Islip
Phone: (631) 595-3500
Email: contactus@islipny.gov
Location: 655 Main Street, Islip NY
Office Hours: Monday – Friday 9AM – 5PM

Bayport, NY Links:
Bayport; Town of Islip Municipal Building
Town of Islip Building Department
Town of Islip Planning and Development

Experienced Bayport Contractors for Your Home Construction Projects.

Here is a list of contractors who may assist with your home projects in Bayport. Please note that while this serves as a helpful starting point, ACM does not specifically endorse any of these contractors.

Plumber
Paul’s Way Home Services Inc – Plumbing & Heating
5014 Veterans Memorial Hwy, Holbrook, NY 11741
631-397-0285

Electrician
Big Sky Electric Corp
326 3rd Ave, Bayport, NY 11705
631-690-7382

Driveway Paving Contractor
Island Driveways & Patios, Inc
3502 Horseblock Road, Medford, NY 11763
631-245-9273

Landscaper
Martin Masonry and Landscaping
947 Division St, Bayport, NY 11705
631-994-1698

Masonry
Stone Escapes Masonry & Outdoor Design
1150 Lincoln Ave UNIT 6, Holbrook, NY 11741
631-582-2362

Let’s Get Started on Your Bayport Home

If you are tired of dealing with a wet basement, damp crawl space, or damaged basement wall, you don’t need to be frustrated any longer. ACM has been serving homeowners in Bayport for literally decades and have completed thousands of successful jobs across Bayport.

Give us a call to schedule a home inspection with one of our waterproofing and foundation specialists. They will sit down with you, answer all your questions, and provide a customized quote. We look forward to getting started.

Protect Your Home Today

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

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