(516) 860 52 89


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About Us

Committed to Excellence:

Where Dedication and Professionalism Thrive Since 2004!

¿Your Assurance of Excellence?

Our Unwavering Dedication and Professionalism. As your go-to home improvement specialists, we’re proud to serve the communities of Nassau County, and Suffolk County,  New York. Why? Because we believe that every family in our service area deserves a home that is not just aesthetically pleasing, but also a fortress of safety and comfort.

Imagine a home that elevates your life’s quality, day in and day out. That’s what we’ve been achieving since 2004 under the focused vision of our founder, Marvin Guevara.

At Nisi Home Improvement Inc, we don’t just dabble in a wide array of services; we excel in our carefully selected specialties—Roofing, Siding, Gutters, Windows, and Doors. By doing so, we don’t just meet industry standards, we set them. Our razor-sharp focus allows us to ensure that your home becomes a masterpiece of durability and design.

We recognize that home improvement projects often come with a significant investment. That’s why our mission extends beyond just completing a task; we aim to provide you with long-term solutions. From the moment we step onto your property, your investment becomes our responsibility, and we don’t take that lightly. Our meticulous planning and execution ensure that every dollar you spend is an investment in quality, aimed at adding value to your home and peace to your life. 

Our ambition doesn’t end at providing top-notch services; we aspire to turn each satisfied customer into a lifelong advocate for our brand. To achieve this, we adhere to a personalized approach for each project, tailored to meet your unique needs and desires. It’s our ultimate goal to exceed your expectations in every way—resulting in a home that is as stunning as it is secure and earning us your valued referral. When you entrust us with your dream home, know that you’re not embarking on a mere project, but entering into a long-term partnership forged in excellence and mutual respect.

Your satisfaction is more than a goal;
it's our benchmark for success.

Since 2004, we've aimed to exceed expectations
and earn your valued referral.

Unmatched Quality
with Nisi Home Improvement Inc.
Nisi Home Improvement Inc's Promise:
Quality Workmanship, Every Time.
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