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Residential & Commercial Roof Installation and Repair Services by Knox Contracting

Installing a new or replacement roofing system is one of the largest investments you’ll make in your home or commercial property. At Knox, we understand that your roof is your first line of defense against rain, wind, snow, and the harsh coastal conditions of Long Island. Many roofs fail prematurely due to improper design, low-quality materials, or poor installation. Our experienced team ensures your roof is properly analyzed, expertly installed, and built to deliver decades of reliable protection and energy efficiency. Whether you need a full roof replacement, repair, or maintenance, we deliver quality craftsmanship you can trust.

Asphalt Shingles

Our premium asphalt shingle roofing systems offer the perfect balance of beauty, durability, and value for Suffolk County homes. Available in architectural and designer styles, these high-quality shingles provide excellent protection against Long Island’s harsh weather, including heavy rain, wind, and snow. With superior wind resistance, rich color options, and low maintenance, asphalt shingles are a smart investment that enhances curb appeal while increasing your home’s value. All installations are professionally done by Knox Contracting and backed by our exclusive KnoxBuilt Warranty.

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Flat & Low-Slope Roofing 

Expert solutions for residential and commercial applications of flat roof systems such as: TPO, EPDM, modified bitumen, metal roofing, maintenance strategies, emergency repairs, and storm damage restoration.

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Modified Bitumen Roofing
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Roof Repairs & Leak Detection

Fast, reliable fixes for storm damage or aging roofs.

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