JJM Construction Corp, also known as JJM Roofing & Waterproofing, is a reputable family-owned business that has served Long Island since 1955. Founded by Dennis Cohen's grandfather with a commitment to quality, the company has built a legacy in the roofing and construction industry. Dennis Cohen began his journey in the trade in 1985, working hands-on and gaining extensive experience managing large-scale projects, many exceeding $15 million, for prestigious clients such as the United Nations and various city agencies.
JJM Roofing & Waterproofing specializes in residential and commercial roofing, siding, waterproofing, and gutter installation. Their skilled team consists of master mechanics proficient in a variety of roofing types, from shingles to slate and Spanish tile, ensuring customers receive expert service tailored to their specific needs. The company prides itself on using only high-quality materials and employs experienced professionals to guarantee precision and craftsmanship.
A hallmark of JJM’s service is their personal guarantee, offering full lifetime manufacturer warranties on all new roofing installations and repairs. They aim to protect homes from the elements while providing peace of mind to their clients with their commitment to quality and customer satisfaction.
With a mission to stand apart from typical contractors, JJM Construction emphasizes excellent communication and customer service, coupled with rapid response times. They are fully licensed and insured, allowing them to serve a broad client base across Nassau County, Suffolk County, and the five boroughs of New York City. Whether undertaking small repairs or comprehensive construction projects, JJM remains dedicated to helping clients protect their homes and businesses.
