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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

Yaphank Basement Waterproofing Systems for Long-Lasting Results

Basement Moisture and Crawl Space Water Solutions in Yaphank, NY

The previous owners of your Yaphank home probably never mentioned…

  • The basement corner that needs checking after rain
  • Why they had so many dehumidifiers running
  • That crack they painted over every spring
  • The real reason they avoided storing things downstairs
    Now you’re discovering what homes along Main Street, near the lake, and throughout Yaphank’s older neighborhoods have hidden for years.

ACM Basement Waterproofing reveals and resolves these inherited problems. With thorough basement waterproofing, complete crawl space repair, and honest foundation repair, we fix what’s been ignored. Stop inheriting someone else’s water problems. Get the truth about your Yaphank home with an ACM inspection today.

Your Basement Waterproofing Experts

Waterproofing your Yaphank basement is an investment in your home that prolongs its longevity while protecting your property. 

We offer interior basement waterproofing solutions that contain and expel any water entering the basement before it can cause a problem. Interior basement waterproofing also doesn’t require invasive exterior excavation.

With a waterproofing system in place to protect your basement from leaks and seepage, you receive protection from structural damage and mold growth.

It’s a no-brainer. If you have water in your basement, call ACM for a basement waterproofing quote.

Yaphank Crawl Space Waterproofing

If you need crawl space waterproofing in your Yaphank home instead of basement waterproofing, ACM is still the one to call. 

Waterproofing a crawl space is similar to waterproofing a basement. After the area is cleared, we install a perimeter french drain to collect any entering water. The French drain transports any collected water to a sump pump, and the sump pump pumps the water out of your home. 

With the system installed, your crawl space is kept dry and free of mold growth and wood rot. Protect your Yaphank home.

Reliable Foundation Repair

Do you see your Yaphank basement walls bowing in or tipping when you walk down to the basement? If so, you need foundation repair. 

The goods news is that ACM is your trusted foundation repair company in Yaphank. Don’t wait for any foundation damage to worsen- call us. 

We use carbon fiber straps to solve bowing basement wall problems. The carbon fiber straps, stronger than steel, are installed on the basement wall, preventing it from further bowing inward. The straps are a perfect, non-invasive solution. They can even be covered up or painted over.

Preparing Your Yaphank Home

At ACM Basement Waterproofing, we make foundation repair a hassle free experience. We don’t just fix your basement; we work alongside you, offering clear guidance and innovative solutions to protect your home for the long haul. Your peace of mind is our top priority.

Brookhaven Building Department
Phone: 631-451-8696
Location: 1 Independence Hill
Farmingville, NY 11738
Office Hours: Monday – Friday, 9:00 am – 4:15 pm

Yaphank Links:
When Do I Need Building Permit
Schedule Appointment With Building Department
Start a New Permit Online




Local Yaphank Contractors for Your Additional Home Improvement Projects

Here’s a list of contractors who could assist with your home projects in Yaphank. Please note that while we provide this information for reference, ACM does not officially endorse any of these contractors.

Plumber
Martinez Plumbing, Inc.
35 Chichester Ave, Center Moriches, NY 11934
631-879-8093

Electrician
Gem’s Electrical Contracting LLC.
385 NY-109 box 1336, West Babylon, NY 11704
516-474-5507

Driveway Paving Contractor
Summit Paving & Masonry
30 Kelsey Ave, Huntington Station, NY 11746
631-464-7054

Landscaper
Genstar Masonry and Landscaping
5340A Merrick Rd, Massapequa, NY 11758
516-902-0869

Masonry
Genstar Masonry and Landscaping
5340A Merrick Rd, Massapequa, NY 11758
516-902-0869

Schedule Your Free Inspection and Estimate

Previous owners left you their Yaphank water problems as an unwelcome housewarming gift. Old patches failing. Hidden damage spreading behind walls. Mystery moisture sources appearing randomly.

Start fresh with ACM’s professional approach. Professional basement waterproofing, complete crawl space repair, honest foundation repair. All from teams near you who know Yaphank homes. Stop inheriting problems and create permanent solutions. Call today.

Protect Your Home Today

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