Welcome to North Shore Window & Door

With an experienced, professional sales staff and factory-certified service technicians, we at North Shore Window & Door hope to enhance our growing reputation for the BEST in customer relations and ensure clients receive the greatest value for their window and door investments.

Our expertise is included with every order to make sure clients are offered the countless design possibilities and combinations of Marvin's products. Discover the beauty and innovation of Marvin by visiting one of our Long Island showrooms in East Hampton and Ronkonkoma, and see for yourself what North Shore Window & Door has in store for you.

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Feeling a draft? Trouble opening that window? Then it might be that time…

There are tell-tale signs to look for when deciding if it’s time to replace the windows and doors in your home. The best step is your first step—and that starts with gathering information from your local Marvin® dealer.

Marvin Windows and Doors - Advantages Promo
The advantages of working with a Marvin Dealer

Whether you're building a new home, remodeling or making home improvements, we understand that choosing windows and doors can be a big decision. Our Marvin experts will walk you through the options - including energy-efficient glazing, hardware finishes, clad colors and other design features. We'll be there to answer your questions and help you make the right choices for your project. 

Marvin Windows and Doors - Tradition Promo
Tradition that never goes out of style

The double hung window has been a prominent feature in American architecture for centuries. At Marvin® Windows and Doors, it is part of our heritage of providing industry-leading products, and quality windows and doors for the American home. We are proud to make an American classic, handcrafted in America. With advancements in engineering the Marvin Ultimate Double Hung window now integrates a classic look with state-of-the-art durability, versatility and ease of use. Smooth operation, tilt-in convenience and extensive size, shape, and finish options make this the perfect window for remodeling, replacement, historic renovation or new construction projects.

Marvin Windows and Doors - Wide Open Promo
Wide Open Possibilities

There's a magnificent vista on the horizon. You want to knock down a wall to turn an ordinary room into an extraordinary one and redefine your family room to include indoor and outdoor living spaces. And after all that, you don't want anything to stand between you and your view. That's why Marvin designed a line of Scenic Doors. The Ultimate Lift and Slide and Bi-Fold doors are available in stunningly large sizes and numerous panel configurations, they allow for a seamless transition from the exterior to the interior of your home. Marvin's industry-exclusive hardware virtually disappears, giving you an incredibly clean and unobstructed view with simple, effortless operation.