License No: H18F9880000
Stop water before it ever gets in. Professional waterproofing that protects your roof, walls, and the structure beneath them from Long Island’s toughest weather — backed by 30+ years of experience.
Most serious roof damage comes down to one thing: water finding a way in. Once moisture penetrates a roof or a flat surface, it spreads quietly — rotting wood, breeding mold, and weakening the structure long before you notice a stain. Waterproofing stops that process at the source.
Abraham Roofing applies professional waterproofing systems that seal vulnerable areas and add a protective barrier against rain, snow, and ice. It’s one of the most cost-effective things you can do to extend the life of your roof and avoid expensive repairs down the line.
Waterproofing a vulnerable roof costs a fraction of repairing the water damage it prevents — the rot, mold, and structural issues that follow a slow leak. If your roof is flat, aging, or has had leaks before, it’s the smartest preventative step you can take.
One of our experienced estimators will meet with you in person, assess the job, and give you a clear, honest quote — no obligation.
We apply high-performance waterproofing coatings and membrane systems designed to flex with your roof and seal out moisture for years.
Leaks almost always start at seams, flashing, and penetrations. We focus on sealing these vulnerable details properly — where waterproofing actually succeeds or fails.
We know how Long Island roofs fail, so we waterproof with the local climate — freeze-thaw cycles, coastal storms, heavy snow — in mind.
one of Nassau County's most established roofing companies
top 2% in North America
License No. H18F9880000
a real estimator assesses the job, not a salesperson over the phone
from a quick fix to a full installation
the principle this company was built on
See what our customers have to say about their experience working with Abraham Roofing.
“Abraham Roofing re-roofed our warehouse with a TPO system and handled the whole job around our shipping schedule. No downtime, no surprises, and the documentation they provided made our insurance renewal easy.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
“Abraham Roofing did an excellent job replacing our roof. The team was professional, efficient, and kept us informed throughout the entire process. The quality of workmanship exceeded our expectations.”
Google/yelp Review - West Hills, CA
Professional waterproofing across Nassau County, Queens, and all of Long Island. Schedule your free, no-obligation assessment today.
or sign up for our Maintenance Program to bundle and save!
REDEEM YOUR SAVINGS
