Posted on Google Linda WeissTrustindex verifies that the original source of the review is Google. 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!Posted on Google rose smithTrustindex verifies that the original source of the review is Google. 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.Posted on Google Craig TodaroTrustindex verifies that the original source of the review is Google. 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.Posted on Google Linda RussoTrustindex verifies that the original source of the review is Google. 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.Posted on Google Maria LacosteTrustindex verifies that the original source of the review is Google. 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.Posted on Google William RothsteinTrustindex verifies that the original source of the review is Google. 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.Posted on Google Links2282Trustindex verifies that the original source of the review is Google. 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.Posted on Google Peter WebbTrustindex verifies that the original source of the review is Google. 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
Posted on Google Linda WeissTrustindex verifies that the original source of the review is Google. 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!Posted on Google rose smithTrustindex verifies that the original source of the review is Google. 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.Posted on Google Craig TodaroTrustindex verifies that the original source of the review is Google. 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.Posted on Google Linda RussoTrustindex verifies that the original source of the review is Google. 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.Posted on Google Maria LacosteTrustindex verifies that the original source of the review is Google. 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.Posted on Google William RothsteinTrustindex verifies that the original source of the review is Google. 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.Posted on Google Links2282Trustindex verifies that the original source of the review is Google. 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.Posted on Google Peter WebbTrustindex verifies that the original source of the review is Google. 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
Tucked into the heart of Suffolk County, Coram is one of Long Island’s oldest communities—rich in history, wooded charm, and classic homes. But whether you live in a historic farmhouse or a newer split-level, one thing remains the same: water can find its way in. Do you really know what’s happening under your home?
High water tables, heavy rainfall, and aging foundations make basement waterproofing a smart move in Coram. At ACM Basement Waterproofing, we’ve worked in homes across the area, so we know how to address the moisture concerns unique to Coram’s soil and construction patterns.
We don’t believe in one-size-fits-all. From crawl space waterproofing to sump pump systems and full-perimeter French drains, we create solutions designed around your home, your property layout, and your long-term peace of mind.
Want to stop water before it becomes damage? Start with a free inspection from Long Island’s trusted waterproofing experts.
Customer reviews from Coram coming soon! In the meantime, take a look at our testimonials page for reviews from customers from other towns.
At ACM, we care about our quality of work. We use top products and customized solutions for your home, guiding you through each step of the process. Our goal is to answer all your questions and provide a seamless, stress-free experience from start to finish.
Coram, NY; Town of Brookhaven NY Municipal Building
Phone: 631-451-8696
Email: BuildingInfo@HuntingtonNY.gov
Location: 1 Independence Hill
Farmingville, NY 11738
Office Hours: Mondays 9:00 am – 4:15 pm – 4:30 pm to 7:00 pm (Extended Hours)
Tuesday – Friday 9:00 am – 4:15 pm
Coram NY, Town of Brookhaven NY Links:
Town of Brookhaven, NY
Town of Brookhaven, NY Building Division
Town of Brookhaven, NY Building Division Renewal
Here’s a list of contractors who may assist with your home projects in Coram, NY. Please keep in mind that while we offer this as a helpful resource, ACM does not specifically endorse any of these contractors.
Plumber
VP Plumbing & Heating
36 Chestnut St, Mt Sinai, NY 11766
631-403-0014
Electrician
MJ Electrical Contracting Inc.
170 Berkshire Dr, Farmingville, NY 11738
631-346-6300
Driveway Paving Contractor
APM O’Neill and Sons
903 Old Medford Ave, Medford, NY 11763
631-480-3238
Landscaper
Landscaping & Masonry By G Pellegrino Long Island
3 Donna Ct, Selden, NY 11784
631-696-3007
Masonry
Royal Stone & Masonry
118 Ridgewood Ave, Farmingville, NY 11738
631-612-0374
When basements leak or foundations crack, the stress adds up fast. At ACM, we make it easier with expert inspections, honest guidance, and waterproofing that works. Whether you’ve got standing water or just a musty smell, we’re ready to help.
Once the job’s done, you’ll breathe easier — knowing your Coram home is safe, dry, and ready for whatever the next storm brings.
We make it simple, affordable, and stress-free — with guaranteed results.
