Bellport 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

Bellport Basement Waterproofing Solutions That Work

Basement and Crawl Space Waterproofing Pros Serving Bellport Residents

At ACM Basement Waterproofing, we deliver lasting solutions for homes along Long Island’s South Shore—including full-perimeter French drain systems, high-performance sump pumps with battery backups, crawl space waterproofing, and foundation crack repair. Whether you’re prepping your basement for renovation or dealing with flooding after a storm, our team brings expert service and local knowledge to every project.

Bellport homeowners trust ACM because we understand the specific challenges that come with living so close to the Great South Bay. From Bellport Lane to South Country Road, homes in this coastal village often face high water tables, seasonal flooding, and soil saturation that can wreak havoc on basements and foundations. Many of the area’s older homes, while charming, lack the modern drainage systems needed to handle today’s rainfall patterns.

That’s why we offer free inspections, detailed assessments, and customized waterproofing systems built specifically for Bellport properties. If your crawl space smells musty, your foundation walls are showing signs of moisture, or you’re tired of bailing out your basement after every downpour, ACM is the local team to call.

Let us help you protect your Bellport home—from the ground up.

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Bellport Basement Waterproofing Customer Reviews

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

Preparing Your Bellport Home

At ACM Basement Waterproofing, we make foundation repair a simple experience by providing clear guidance and innovative solutions. We partner with you to protect your home for the long term, always prioritizing your peace of mind.

Village of Bellport Municipal Building, NY
Phone: 631-286-0327
Location: 29 Bellport Lane, Bellport NY 11713
Office Hours: Mon – Fri, 8AM – 4PM

Bellport, NY Links:
Village of Bellport
Village of Bellport Building Department

Trusted Local Contractors in Bellport for Your Home Construction Projects

Here’s a list of contractors who may assist with your home projects in Bellport, NY. Please note, this is provided as a starting point, and 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
M&I Electric & Technology Services
95 Hewlett Ave, East Patchogue, NY 11772
631-830-6533

Driveway Paving Contractor
APM O’Neill and Sons
903 Old Medford Ave, Medford, NY 11763
631-480-3238

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

Masonry
Royal Stone & Masonry
118 Ridgewood Ave, Farmingville, NY 11738
631-612-0374

Let’s Fix the Basement Water in Your Bellport Home

Living in Bellport means being close to the coast — but it also means dealing with a higher risk of flooding, especially in homes with older foundations. If your basement’s showing signs of water damage or your crawl space smells damp, you’re not alone. At ACM, we’ve helped Bellport homeowners protect their homes from heavy rains and rising groundwater. We’ll assess the problem, explain your options, and deliver long-term solutions without pressure. Your home deserves to stay dry, no matter the weather. Let’s make sure it does.

Protect Your Home Today

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

*50% Off Materials Discount applicable to new projects over $10,000
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