Long Island Contractors Serving Nassau & Suffolk Counties

Make your house a home by giving it the personal touch you’ve always wanted. As Long Island contractors, Larsen Home Improvement specializes in transforming your ideas into state-of-the-art masterpieces. Your wish is our command! We are home renovation experts that have completed thousands of remodeling projects for residential customers throughout Nassau and Suffolk counties.

See before you buy

Watch your renovation project take shape in front of your eyes. Using a sophisticated and innovative 3D home rendering program, Larsen Home Improvement in Long Island, NY, allows you to see everything before we even hammer one nail. Our state-of-the-art design imaging program creates a 3D picture of your renovation.

new home construction

You may love your property, but you’ve outlived your old home. If you want to expand, improve, or simply upgrade to something better, trust Larsen Home Improvement for design-build new home construction. Our experienced design team can make your dream home become real reality.

home extensions

The square footage of your home was perfect when you bought it. Now, it seems like your space is shrinking. If you have a growing family or your space needs have grown, then consider Larsen Home Improvement in Hicksville, NY, for home extensions.

decks & pavers

Personalize your patio or deck and beautify your backyard. As a successful premier deck builder in Long Island, NY, we can build a customized deck that becomes the center of activity for your family and friends. Make outdoor living so much more enjoyable by trusting us for custom deck installation.


Update your home by changing your windows. Your window to the outside world gets much better when you depend on Larsen Home Improvement for window installation in Long Island, NY. Whether you want to save more on heating costs by installing energy-efficient windows, or you want to create a dramatic look by installing bay windows, we cater to all of your window wishes.


Make your home stand out from the rest on the block. By installing exterior custom stonework, we feature design elements that add distinct appeal and value to your home. Our expert team in Long Island can accurately lay stones in design patterns that create a customized look that is unmistakably unique.

roofing & siding

Put a strong and more appealing roof over your head. As a successful and established roofing contractor in Long Island, NY, we deliver top-quality workmanship, courteous service, and on-time performance. In fact, when it comes to providing roofing services, we really raise the roof on quality. Whether your roof is damaged, or you want to upgrade the look of your home, you can depend on Larsen Home Improvement.


Is your family starting to grow out of house and home? Add extra living space to your house without the extra expense of a home extension. Basement renovation is a cost-effective and ideal solution when homeowners need extra room to grow. Larsen Home Improvement converts unfinished basements into beautiful rooms. Trust our professional team to refinish your space through basement remodeling in Long Island, NY.

Kitchen & Bath

Turn your drab cooking area into a creative, custom kitchen. You have dreams for something better: new floors, cabinets, and countertops. At Larsen Home Improvement, we have the perfect recipe for success. By providing custom kitchen remodeling, we combine your ideas with our skills to make a masterpiece in your home.

mother daughter

Make part of your home a legal apartment for a parent or child. Larsen Home Improvement builds mother-daughter extensions in Long Island, NY, as well as Nassau and Suffolk counties. It’s an affordable way to expand your living space and ensure separate living quarters while keeping the family close.


Add more space, appeal, and value to your home by trusting the area’s leading remodeling contractor for custom-designed dormers. For more than 55 years, Larsen Home Improvement has specialized in giving our customers more room to play, work, and relax. We build Long Island dormers that make your home even bigger and better than before.

Contact our construction company in Long Island, NY, to discuss your remodeling options if you want to add a second story to your home. We proudly serve customers in Nassau and Suffolk Counties, including Wantagh, Seaford, Bellmore, Levittown, and East Meadow, New York.

Contact Larsen

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