client testimonials

Some Kind Words From Our Customers

“Highest Recommendation”

George and his team did a great job on our garage roof. The roof was over 50 years old. George carefully explained what he was going to do and helped us understand all of the potential costs upfront. He delivered exactly what he promised and was very fair on the pricing.

Barry | Huntington, NY

“Outstanding Work”

We are very happy with our new roof. George and his crew worked hard to complete the job in record time. We highly recommend this company.

Dennis | Northport, NY

“Right on Schedule”

These guys came on time, they did the roof at my house and separate garage all in one day. George has a large team, they did a great Job! My roof is looking really nice. I was nervous about having my roof done but all came out well, thanks to this team.

Paola | Deer Park


They cleaned up well when they were done.

Eric | Copiague, NY

“Hands On”

The owner, George was involved in the job and there to make sure his employees were doing a great job Very neat and cleaned up 100%. Very punctual Honest. I would recommend this company!

Karen, Kings Park

“Professional &  Fast”

George really earned this one he quoted me a year ago and followed up when no one else really did. He circled back when I was ready and I’m glad he did. After peeling off the roof we found rotten rafters. He ran to Home Depot on the spot and got new boards. And charged me the cost which was a good thing because I was at my budget. They got it done in one day as planned and left the place better than they found it.

Rich | Smithtown, NY

“Just As Promised”

Hired them to do a flat roof and a portion of the house shingle roof. They repaired the plywood, installed the roof, flashed the leak around the chimney, and reattached a loose gutter. All in one day, as promised.

Mark | Huntington Station, NY

GNP Roofing, Siding and Window Projects

Take a look at a handful of our completed projects across, Suffolk County Long Island. From siding and roof replacement to window, door, and gutter installations, GNP Roofing and Siding is proud to be your local Long Island contractor for any exterior remodeling project you have. Famil-owned and operated contractor for over 30 years.

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    “Outstanding Work”

    Yesterday George and his wonderful team of workers did a roof replacement on my house. They did a superb job. I was very pleased with the quality of work on my roof. After the job was done they did an amazing job of cleaning up which left my property spotless. I hired George on the spot after discussing the job and estimate with him. He’s an honest contractor who delivers what he promises. I would recommend George in a heartbeat.