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ACM Basement Waterproofing ACM Basement Waterproofing
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Business Details
35 Years
experience
Emergency
services
Your Trusted Partner for Waterproofing Solutions in Long Island
ACM Basement Waterproofing has been a family-owned and operated business since 1991, specializing in basement waterproofing, foundation repair, and crawl space solutions across Long Island. With over 30 years of experience, we serve Nassau and Suffolk counties, addressing unique local challenges like high water tables and coastal storm damage. Our team of Certified Waterproofing Specialists combines proven methods with customized solutions to ensure long-term protection for homes. Recognized by the Basement Health Association with a Star Award, we maintain an A+ BBB rating and prioritize transparent, customer-focused service.

Our expertise in interior French drains, sump pumps, and foundation reinforcement has resolved water issues for thousands of homeowners. We emphasize education, offering resources to help clients understand basement health risks and prevention strategies. Our commitment to quality is reflected in our 100% satisfaction guarantee and extensive positive reviews from Long Island residents.
Services
Basement Waterproofing Crawl Space Repair Foundation Crack Repair French Drains Sump Pumps Egress Windows Mold Remediation Carbon Fiber Reinforcement Window Well Drains Battery Backup Systems
Details
  • Year established: 1991
Highlights and features
  • We offer 30+ years of local expertise in Long Islands unique soil and water conditions.
  • Our team includes Certified Waterproofing Specialists with rigorous industry training.
  • We provide customized solutions without one-size-fits-all approaches to waterproofing.
  • We guarantee 24/7 emergency service for urgent water intrusion situations.
  • We maintain an A+ rating with the Better Business Bureau and multiple industry awards.
Associations and certifications
  • Basement Health Association (BHA)
  • Better Business Bureau (BBB)
What people say
Excellent work Professional crew No water issues Honest solutions Spotless cleanup
Website
Services
Basement Waterproofing
Our basement waterproofing solutions address Long Islands unique challenges, including high water tables and coastal flooding. We install interior French drains, sump pumps, and vapor barriers to prevent water intrusion. These systems protect against mold, structural damage, and health risks while preserving property value.
Foundation Repair
Foundation repair services target cracks, bowing walls, and hydrostatic pressure damage. We use carbon fiber straps and wall anchors to stabilize and strengthen foundations. This prevents further shifting, water leakage, and costly collapses in poured concrete or block walls.
Crawl Space Waterproofing
Crawl space waterproofing prevents moisture-related issues like rot, mold, and structural weakening. Our solutions include vapor barriers, drainage systems, and encapsulation to maintain dry, healthy crawl spaces. This improves indoor air quality and prevents pest infestations.
French Drains
French drain installation redirects groundwater away from basements and foundations. We trench interior perimeters, lay perforated pipes, and use gravel beds for efficient water management. This prevents pooling and reduces hydrostatic pressure on foundation walls.
Sump Pumps
Sump pump systems efficiently remove accumulated water from basements and crawl spaces. We install primary pumps with battery backups to ensure continuous operation during power outages. This prevents flooding and maintains dry living environments year-round.
Questions
How do I know if my basement needs waterproofing?
Look for musty odors, water stains, pooled water after rain, or frequent sump pump use. These signs indicate moisture intrusion requiring professional waterproofing.
What areas of Long Island do you serve?
We serve all of Nassau and Suffolk counties, addressing varied soil conditions from coastal areas to inland neighborhoods.
Do you offer emergency waterproofing services?
Yes, we provide 24/7 emergency response for urgent water intrusion situations to minimize damage.
How long does basement waterproofing last?
With proper maintenance, our systems typically last 10+ years. We offer strong warranties on all installed products.
Can you waterproof a finished basement?
Yes, we install discreet interior systems that protect finished basements without disrupting existing finishes.
What payment methods do you accept?
We accept major credit cards, checks, and financing options for approved customers.
Reviews (11)
Robert J. Rose
Apr 24, 2023 Report
A totally reliable company that knows what it is doing. They came when they said, they finished when they said. When finished, they had completely cleaned up after themselves. Definitely a 5 star plus company.
Evan Cirino
Apr 12, 2023 Report
Amazing, from the top down a truly a fantastic company, they're life savers! Other companies which I won't mention will just encapsulate your basement to "fix" an issue, Mark, the ACM business owner however knows how to really fix these issues. Mark is such a personable guy, such a pleasure to work with, extremely down to earth and direct, no sales pitch, no bs, just straight up and professional. And is team are pros, super clean, respectful and great communicators. I would call mark with any issue I have with my basement, only problem is he fixed them all already. 10 out of 10
Richard Piligra
Jun 08, 2022 Report
Mark and his team installed a French drain in my basement. The work started and completed as scheduled. Workers from ACM were efficient and respectful. The job was quite messy and they cleaned up perfectly and demonstrated the system. I am very satisfied with the work performed by ACM and highly recommend them. Services: Installation, Waterproofing
Clarence & Jacqueline P.
May 12, 2022 Report
Project went well. Everything explained was done as clearly walked through. Owner takes pride in his business.
Geoffrey Zucker
Oct 23, 2021 Report
Very professional. Owner came to do initial assessment and came on site during work to advise and direct workers. Communicated problems and his design of solutions very well. Placement of basement French Drain for recurring flooding. Service: Waterproofing
John Torino
Aug 22, 2021 Report
From the initial estimate meeting to the end of the project Mark was always prompt, professional and is very knowledgeable about his craft. His team arrived on time, worked hard and made sure everything was cleaned before they left. It has been a week since the project was completed and my basement is finally dry. I would highly recommend ACM Basement Waterproofing.
Stephanie S.
Sep 04, 2019 Report
Ray came to look at the issue we were having with water getting in through the window. He suggested removing the small basement window, which we had never thought of. The day of the job went smoothly and was completed in just a few hours. Mark came to look at the window a few days before the work and the day after to make sure everything was to our satisfaction. We are very happy with the project and would recommend ACM to anyone.
Roger C.
Jan 27, 2019 Report
Mark and his crew didn't waste a minute during the course of the project. His crew was able to install a full perimeter french drain in my basement within the 4 days promised. Outstanding job.
Mitch Steckis
Sep 15, 2018 Report
Just had a full basement french drain and well pipes installed by ACM and I can't say enough good things about the work they did. Throughout the whole process I was amazed by how neat the whole crew kept everything during the project. I am very happy I decided to go with them for my project and if I ever had another basement wouldn't hesitate to give ACM a call again.
Leonard G.
Apr 09, 2018 Report
Mark and his men did a beautiful job in installing the French drain. The work was done very nicely, and when completed, the area was left completely clean. They took great pains to hide the drain pipe going out to the exterior of the house, and even created a drain around my hot water storage tank and furnace in case they ever sprung a leak. I could not have asked for a better job or nicer people to do it.
Paula Flax
Oct 26, 2013 Report
During the installation of our French drain your team worked hard and clean, but until this deluge we've been experiencing the last few days the French drain never had to "kick in" My basement is bone dry, what a pleasure. My son adds his praise to mine as he says he would have been the one to clean up our flooded basement if it wasn't for you. Thank you again for the wonderful job, and feel free to give my name as a reference to anyone who has any questions.