B&M Insulation, 2335 Southpark Dr, Murfreesboro, TN 37128, US

31W Insulation is a family-owned company that offers insulation products and fireplaces It maintains locations in Goodlettsville and Clarksville, Tenn., and operates more than 50 locations in over 10 U.S. states. 31W Insulation is comprised of nearly 800 people and serves contractors in the residential and commercial sectors. It offers a range of products that include gutters siding, shelving, garage doors, mirrors and foams. The company also provides shower enclosure, bath hardware and marble products. With one of its locations in Millersville, Tenn., 31W Insulation additionally maintains an online store.