Roofing by J.M.J has factory trained and certified installers to handle all of your commercial & residential roofing needs. J.M.J has the manpower and equipment to get the job done fast! We will complete the project on schedule and within budget. Unlike some other commercial contractors, we will show up on time with the manpower and equipment needed to get the job done right the FIRST TIME! We have served the Knoxville TN area since 1986 and we will be here when you need us! Our commercial installers will: Install new roofs on new buildings Install new roofs on existing buildings Provide maintenance and repair of existing roofs Factory Certfied installation of Commercial Roofing Systems, TPO, Single-Ply and more