Shells Only Home Improvements is Long Island's Extension Expert with four decades of hands-on experience working every aspect of the construction business. Services include all areas of Nassau County, New York including Levittown, Wantagh, Garden City, and Seaford.

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Our experienced design team develops plans for your extension to complement your present house architecture while keeping your budget in mind. Because Shells Only specializes in both design and construction, we know how to design home extensions for Long Island homes that are both practical and beautiful.