County Roofing Smithtown is a triple-certified roofing contractor serving homeowners, landlords, and businesses across Smithtown, Hauppauge, Port Jefferson, and the surrounding area for over 35 years. We specialize in flat roofing, roof replacement, roof repair, and shingle roofing for single-family homes, multi-family buildings, and commercial properties. Our licensed and insured team has deep experience with homes throughout Smithtown and the surrounding area, including Colonials, ranches, older historic homes, steep-slope roofs, and complex flashing across suburban Suffolk County. We hold the highest certifications from GAF, Owens Corning, and CertainTeed (top 1-3% nationally). Emergency roof repairs available. Free Estimates.