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
When your basement floods or your foundation starts to crack, time is not on your side—and in Central Islip, where weather swings and groundwater shifts are common, even a small issue can escalate quickly. That’s where ACM Basement Waterproofing comes in.
Instead of cookie-cutter fixes, we focus on thoughtful, locally informed solutions. Our work in Central Islip ranges from homes near Suffolk County Court Complex to neighborhoods around Caleb Smith State Park Preserve. Whether your crawl space needs waterproofing or you’re concerned about structural damage after a storm, we offer reliable service built on decades of Long Island experience.
What sets ACM apart for Central Islip homeowners?
We start with a thorough, no-cost inspection—no pressure, just the facts
Our crews specialize in tailored solutions, from sump pumps to French drains
We know Central Islip’s soil, homes, and drainage patterns inside and out
You’ll work with a local team that treats your home with the care it deserves
We back our work with real warranties—because peace of mind matters
Whether you’re on Hawthorne Avenue, near Carlton Park, or tucked into a quiet street off East Suffolk Avenue, ACM Basement Waterproofing is here to protect your property from water intrusion and foundation issues.
Reach out today to schedule your free inspection and take the first step toward a drier, safer home.
“Excellent work done.” – Pat, Central Islip
“Job completed in one day to our satisfaction. I would recommend ACM to anyone.” – Arthur, Central Islip
Take a look at our testimonials page for reviews from customers from other towns.
At ACM, we focus on more than just completing the task. We prioritize lasting results. We ensure excellence in every detail by using top-quality materials and providing tailored solutions for your home. We guide you through our process, address any questions, and deliver our work in a smooth, stress-free experience.
Central Islip; Town of Islip Municipal Building
Phone: (631) 595-3500
Email: contactus@islipny.gov
Location: 655 Main Street, Islip NY
Central Islip, NY; Town of Islip Links:
Town of Islip
Town of Islip Building Department
Town of Islip Planning and Development
ACM wants to help you with all of your home needs. While we do not endorse these companies, we want to list top rated contractors to help you with your other Central Islip, NY, projects.
Plumber
Order a Plumber Inc.
2871 Sunrise Hwy, Islip Terrace, NY 11752
631-234-0687
Electrician
KV Electric Inc
405 Central Ave, Bohemia, NY 11716
631-724-4758
Driveway Paving Contractor
Royal Pavement Solutions
2 W Beech St, Islip, NY 11751
844-777-7924
Landscaper
Softwind Landscaping, Landscape Design & Masonry
311 Main St, Islip, NY 11751
631-553-5927
Masonry
Black Bear Masonry Design
321 George St, West Islip, NY 11795
631-357-1015
Tried sealing that basement crack yourself but still getting water after every storm? You’re not alone. DIY fixes might buy time, but real peace of mind takes a professional touch. At ACM, we’ve helped homeowners across Center Moriches solve waterproofing problems at the source — no more guessing, no more wasted money. From detailed inspections to proven solutions, we’ll guide you every step of the way. Let’s get it done right, the first time.
We make it simple, affordable, and stress-free — with guaranteed results.
