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
Basement Water Solutions
If your basement walls are beginning to bow, shear, or tip inwards, you need to have the issue fixed. But how? The answer is expert carbon fiber strap installation by ACM Basement Waterproofing.
As Long Island’s local foundation repair company, ACM Basement Waterproofing specializes in carbon fiber strap installation, providing expert foundation repair services for homes and businesses in Suffolk and Nassau counties. So, call us today for your free foundation inspection and repair quote.
We make it simple, affordable, and stress-free — with guaranteed results.
Many Long Island basements face unique challenges due to our mix of sandy soils, clay pockets, high groundwater, and coastal storms. Over time, these conditions can put extreme pressure on foundation walls.
If you live in Nassau County or Suffolk County, watch for these warning signs that your walls may need carbon fiber reinforcement:
If you notice any of these in your Long Island home, it’s time to schedule a professional foundation inspection with ACM Basement Waterproofing.
Carbon fiber straps are an ideal solution for basement wall repair. Carbon fiber is an incredibly strong material (five times stronger than steel) and does not stretch. The installed straps adhere to your basement walls, acting as a permanent brace that strengthens the foundation, keeping the walls in place.
Whether carbon fiber straps are suitable for your home in Long Island depends on the extent of foundation wall intrusion. Most of the time, carbon fiber straps are the answer for bowed, tipping, or shearing foundation walls. To be certain, you need to have one of ACM’s foundation repair experts inspect your foundation.
If you want to straighten the foundation walls of your Long Island home completely, you will need to replace them, but that is a last resort as it is the most invasive, expensive, and often the most unnecessary option. In the vast majority of cases, foundation repair is the better option.
Foundation repair prevents further damage to your basement walls, keeping them strong and safe. Only in the most extreme cases is foundation replacement necessary.
Beyond being an effective foundation repair solution, carbon fiber straps offer additional benefits:
1. Longevity. The strength and durability of carbon fiber mean that your foundation straps will be as effective years down the road as they were when first installed.
2. No Maintenance. After installation, you don’t need to worry about the straps. They will continue doing their job on their own.
3. Simple Installation. Carbon fiber straps are installed on the inside of your basement walls, which means no excavation is required, and the installation process is much shorter.
4. Minimal Disruption. Carbon fiber strap installation involves little noise and makes little mess. Installation is fast and quiet compared to other foundation repair options.
5. Hidden Straps. The carbon fiber straps are thin and lay flush against the wall, so you can easily cover up or even paint over the straps, making them all but invisible.
Some Long Island homeowners like to take on DIY projects around the house. If you are one of those people, should carbon fiber strap installation (foundation repair) be a project you take on? In short, no.
The first issue with DIY foundation repair is the low quality of the products and materials in do-it-yourself kits. These kits do not have the same durable, professional-grade materials ACM uses in repair jobs.
And, even if you were to get your hands on suitable materials, the repair products are only effective if installed correctly. ACM has been fixing damaged foundation walls in Long Island for decades, and this experience allows us to create permanent foundation repair solutions.
On top of that, if the DIY work fails to repair the foundation properly, the added costs of later professional repair, on top of your original DIY costs, mean that you save time and money by calling ACM first to install carbon fiber straps.
When you choose ACM Basement Waterproofing for your Long Island carbon fiber installation, here’s what to expect:
Most Long Island installations are completed in a single day with minimal disruption to your home.
When a basement wall starts to bow, shear, or tip, your Long Island home needs more than a patch. ACM installs ICC-Building Certified Fortress Stabilization Systems, a carbon fiber solution that corrects the problem for good.
Built on over two decades of engineering and testing, the Fortress system locks your wall in place along its full height. Think of a seat belt: anchors at the top and bottom of each carbon fiber strap pull the wall tight and hold it steady. With ACM installing Fortress straps, your foundation gets repaired right the first time.
Invisibeam is the carbon fiber strap system made by Fortress Stabilization Systems. Sold exclusively through Fortress, it carries a lifetime warranty and ICC certification, permanently stops bowing and tipping, and needs no maintenance.
ICC-Building Certification means Fortress carbon fiber straps have passed accredited, independent testing and been proven effective, so your Long Island basement repair clears building code inspection without a problem. Fortress earned its ICC-ES certification through rigorous evaluation at the Structures and Materials Laboratory at the University of Miami, an ISO 17025 accredited facility.
Long Island’s coastal climate, seasonal storms, and freeze-thaw cycles create constant stress on foundation walls. In many neighborhoods across Nassau County and Suffolk County, older foundations and shifting soil conditions make homes especially vulnerable to wall movement.
Carbon fiber is an ideal repair solution because:
ACM Basement Waterproofing uses professional-grade carbon fiber systems engineered for the specific soil and moisture conditions found across Long Island.
When it comes to repairing bowing or leaning basement walls in Long Island, homeowners have several options—each with its own advantages and limitations.
Carbon fiber straps are a permanent, low-maintenance solution that installs quickly and causes minimal disruption. Because they lay flush against the wall, they take up no usable basement space, making them ideal for tight areas. While carbon fiber prevents further movement, it does not push a wall back into place, so it’s best suited for walls with early to moderate bowing or leaning.
Steel I-beams provide exceptional strength and can straighten walls over time, but they are bulky and can intrude into the basement, reducing usable space. They’re often used when bowing is more severe and interior space loss is acceptable.
Wall anchors can pull a wall back toward plumb, making them a good choice for more advanced displacement. However, installation requires exterior excavation and more time, which can be challenging in tightly packed Nassau County or Suffolk County neighborhoods.
Full wall replacement is the most invasive and expensive option, involving complete removal and rebuilding of the wall. While it results in a brand-new foundation wall, it’s typically reserved for extreme structural failures where no other repair method is viable.
For most Long Island homeowners dealing with early to moderate wall movement, carbon fiber offers the best balance of strength, cost, and minimal disruption—keeping basements secure without sacrificing valuable living space.
Q: Can carbon fiber straighten my foundation wall?
A: Carbon fiber prevents further movement but does not push the wall back. For walls with minimal displacement, it’s the most efficient and permanent solution for Long Island homes.
Q: How long will carbon fiber straps last?
A: With ACM’s professional installation, carbon fiber straps last for decades without maintenance.
Q: Can I finish my basement after installation?
A: Yes. Straps lay flush against the wall and can be painted or covered, making them easy to hide.
Q: Will installation disrupt my home?
A: Not at all. Most Nassau County and Suffolk County installations take one day and require no exterior excavation.
Q: Is carbon fiber suitable for both block and poured concrete walls?
A: Yes, ACM installs carbon fiber on both wall types common in Long Island basements.
So, if you are looking for expert carbon fiber strap installation in Long Island, ACM is your local, trusted expert. Call us today to schedule a free foundation inspection and repair quote.
One of our foundation pros will sit down with you to explain the problem you face and the solutions we offer and answer any questions you may have. We’ll find the right solution for your budget and your home.
We make it simple, affordable, and stress-free — with guaranteed results.
