R.W. Mulligan

R.W. Mulligan stands as the premier roofing and siding company in eastern Long Island, distinguished by our GAF Master Elite and Commercial Roofing Contractor certifications. As the only contractor on Long Island with these credentials, we deliver comprehensive roofing solutions, including EPDM, cedar shingles, asphalt shingles, slate roofs, vinyl siding, and custom metal work. Our commitment to quality craftsmanship, premium materials, and rigorous safety standards has solidified our reputation as the regions trusted leader. We prioritize professionalism, offering lifetime warranties and advanced protection systems to ensure durability against common roofing challenges. Backed by GAFs stringent certification process, which only 4% of contractors achieve, we guarantee reliable service and unmatched expertise.

Our team invests in continuous training to maintain industry-leading standards, ensuring every project meets exacting specifications. With a vision to redefine roofing excellence, we focus on innovation, sustainability, and customer satisfaction, earning accolades for product quality and service reliability. Our dedication to green building practices and cutting-edge solutions like solar roof vents underscores our forward-thinking approach. By combining advanced technology with time-tested methods, we deliver roofing systems that withstand extreme weather, including Category 3 hurricane-force winds. Choosing R.W. Mulligan means partnering with a fully licensed, insured, and community-focused contractor committed to transforming roofs into enduring assets.