R.W. Mulligan is the premier roofing and siding company serving eastern Long Island, known for their expertise in installing all types of steep slope and low slope roof systems. As the only GAF Master Elite Roofing Contractor and GAF Master Commercial Roofing Contractor on Long Island, they offer comprehensive warranties and specialize in EPDM roofing, cedar shingles, asphalt shingles, slate roofs, vinyl siding, window and door systems, and custom metal work.
With a focus on professionalism, quality materials, craftsmanship, safety, and cleanliness, R.W. Mulligan has built a reputation for delivering the highest quality in every roofing and siding project. Their informative website allows customers to make informed decisions about their projects, and their list of repeat customers is a testament to their commitment to excellence. From residential to commercial and industrial buildings, R.W. Mulligan is the trusted choice for roofing, siding, and renovation projects in the area.
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