(516) 860 52 89


See Financing Options for Roofing, Siding and Windows

A Roof Over Your Head,
Peace in Your Mind.
Low-Maintenance, High Impact:
That's Our Vinyl Siding.
Open Doors to Comfort;
Close Windows to Worries.
Gutters So Good,
Even the Rain Will Be Directed.
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Welcome to Nisi Home Improvement Inc:

Your Ultimate Destination for
Home Improvement Solutions!

Transforming Homes

SINCE 2004

Proudly Serving Nassau

and Suffolk Counties New York.




-We needed to have a new roof for our house in Queens, NY in 2021. Thank God one of my colleagues recommended NISI. She said that they had done great work for many of the parishioners in her church and all were very satisfied. After our estimate, which was at a fair price, we signed a contract with Rey of NISI. He was a pleasure to work with. -To make a long story short- we had our total roof and gutter install done in May of 2021 and we are extremely pleased with their work. -Rey and his team completed the work according to the promised timeline and made sure we were satisfied. They were great and knowledgeable roofers. - As for customer communication, Rey was very responsive, answered questions, and informed us of any unexpected discoveries. He was willing to make any adjustments at our request and didn't have an attitude about it. -They are honorable and upstanding roofers and they cleaned up behind themselves. -My family would recommend NISI to whoever needs roof work. -We give them 5 stars out of 5!
Cynthia K
I can’t say enough about this company.They we’re recommended to us from a friend. We called them because we needed some work done on our roof & the front of our house. They did a wonderful job, very professional & wouldn’t hesitate using them again. Highly recommend to anyone who needs work done on they’re home.
Rita Powell
Marvin and his team are exceptional at what they do AND at how they do it. Nisi did roof work for me several years ago and I called him this week for a very small job (siding fell out) and he responded and was at my house within hours to look at the damage and had his team come out and repair it within a couple of days. This is next level professionalism and responsiveness. Thank you to Marvin and the whole Nisi team!
Stan G
Es una compañía muy profesional 👍👍
Wilmer Cortes
I highly recommend Ray and the whole Nisi crew. Everyone knew what they were doing and did exactly what they said they would and did it in a prompt fashion. Truly professional. I would definitely recommend them to friends and family
Rey and his Team are amazing. Very professional and they care about the work they are doing. Their attention to every detail and recommendations made my project look amazing. Roof & siding came out great!!!!!!! Also, my neighbor needed a small repair and they helped her out - no job is too big or too small - can’t say enough about their work and Rey’s team!!!
Ines Morales
We recently hired NISI to install capping on the trim and soffits of our home, exterior door replacement, and rear porch roof replacement. The entire crew was very professional, prompt, courteous, and did a wonderful job. We would not hesitate to recommend, and use NISI again in the future. Thank you!
Michael Knipfing
I would absolutely recommend NISI company, they are punctual, friendly, I have always received wonderful suggestions, they do not just take your money if it’s not a good idea they will not proceed. NISI will go over every details and explain your best option and the best part their prices are reasonable and fair. NISI company are absolutely wonderful. Every time I refer them to someone else, they are very satisfied. I have used NISI in the past and will continue working with NISI.Keep it up NISI.
Dorothy Lajeune-Narcisse
Served homeowners
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Services Provided
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Full Installations
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