Long Island Basement Waterproofing – Family Owned and Operated

East Hampton’s Award-Winning Basement Waterproofing Company

East Hampton Crawl Space and Basement Waterproofing Solutions

From timeless beachfront estates to classic cedar-shingled cottages, East Hampton homes are built for lasting memories. But beneath the charm, coastal living brings hidden challenges—especially when it comes to moisture. Saturated soil, high water tables, and heavy rains can quietly damage your foundation, seep into crawl spaces, and compromise your basement’s integrity.

At ACM Basement Waterproofing, we specialize in protecting what lies below. Whether you’re dealing with a damp crawl space near Egypt Lane, foundation cracks close to the historic village, or water intrusion in your basement after a storm rolls off the Atlantic, our team delivers custom waterproofing and foundation repair solutions designed to stand up to East Hampton’s unique conditions.

We don’t just fix water problems—we help prevent them. Our trusted systems and experienced crew ensure your home stays dry, stable, and secure season after season, backed by dependable workmanship and local knowledge you can count on.

Completed Jobs in East Hampton, NY

Marvin, East Hampton, 2026 – Basement Waterproofing

Debbie contacted ACM Basement Waterproofing during a major renovation of her East Hampton home. The property had an existing foundation along with two basement extensions, and she wanted to make sure the entire space was properly waterproofed before the project moved forward.

Our team installed a complete interior basement waterproofing system, including 180 linear feet of French drain across the original foundation and both extensions. We installed the drainage system before the new floors were poured, allowing everything to be integrated seamlessly into the finished basement.

In addition to the interior French drain, we installed full wall drainage using Miradrain up to grade, protecting the foundation walls from exterior moisture. New window wells and window tap drains were also added, ensuring any water near the windows is captured and directed into the drainage system.

Debbie’s East Hampton home now has comprehensive waterproofing protection built right into the renovation — the ideal time to address basement moisture issues.

East Hampton Basement Waterproofing Customer Reviews

Customer reviews from East Hampton coming soon! In the meantime, take a look at our testimonials page for reviews from customers from other towns.

Getting Your East Hampton Home Ready

At ACM, we aim to deliver lasting, dependable results, not just finish the job. With high quality products and customized solutions, we guide you through every step of the process, ensuring a smooth and stress free experience and addressing all your questions along the way.

East Hampton, NY Building Department
Phone: 631-324-4145
Location: 300 Pantigo Place Suite 104
East Hampton, NY 11937
Office Hours: Monday – Friday 8:30 am – 3:30 pm

East Hampton, NY Links:
East Hampton Building Department
East Hampton Page




East Hampton Contractors to Help With Your Other Home’s Needs

While ACM does not endorse any of these contractors, we hope this list serves as a helpful starting point for your other home project needs.

Plumber
Quackenbush Cesspools Inc
74 Montauk Hwy Suite #18, East Hampton, NY 11937
631-907-4426

Electrician
MBI Plus Electric Inc
15 Railroad Ave #2, East Hampton, NY 11937
631-324-1237

Driveway Paving Contractor
Hampton Hardscapes
489 Montauk Hwy, East Quogue, NY 11942
631-599-4014

Landscaper
Creative Design Landscapes
123 Stephen Hands Path, East Hampton, NY 11937
631-488-0064

Masonry
Hampton Hardscapes
489 Montauk Hwy, East Quogue, NY 11942
631-599-4014

Let’s Fix the Basement Water in Your East Hampton Home

Call today to protect your East Hampton home before the next storm hits.
We understand the challenges of coastal living — high water tables, sudden downpours, and aging foundations. At ACM, we offer thoughtful waterproofing solutions for seasonal cottages and full-time homes alike. Our process starts with a detailed inspection, and ends with long-term peace of mind. Whether it’s a damp crawl space or a wet basement floor, we’re here to solve the problem at its source — no gimmicks, just results.