Asphalt shingles offer Maryland homeowners a strong balance of durability, performance, appearance, and value. From California and Leonardtown to Waldorf, Prince Frederick, Bowie, and Glen Burnie, JMJ Exteriors installs complete roofing systems designed to protect your home from the roof deck up—not simply replace the shingles you can see.

A quality roofing system depends on proper installation of underlayment, flashing, ventilation, shingles, and other critical components. As an Owens Corning and CertainTeed certified contractor, JMJ Exteriors provides experienced installation, trusted roofing products, and enhanced manufacturer warranty options.

Contact us today to schedule your free shingle roof replacement estimate.

Metal roofing provides Maryland property owners with a durable, long-lasting roofing option built to handle heavy rainfall, high winds, summer heat, and changing seasonal conditions. JMJ Exteriors installs standing seam metal roofing systems for complete roof replacements, porches, additions, accent roofs, and other residential and commercial applications.

With concealed fasteners and interlocking panels, standing seam systems provide a clean appearance while reducing exposed connection points where water intrusion can occur. From rural properties in Mechanicsville and La Plata to waterfront communities along the Chesapeake Bay, we help customers determine whether metal roofing is the right fit for their property and long-term needs.

Contact us today to schedule your free metal roofing estimate.

Low-slope roofing systems require specialized materials, proper drainage, and installation techniques that differ from traditional steep-slope roofs. JMJ Exteriors installs TPO, EPDM, and self-adhered modified bitumen roofing systems for commercial buildings, additions, porches, garages, and other low-slope applications throughout Maryland.

From commercial properties in Waldorf and Bowie to residential additions in St. Mary’s and Calvert counties, we evaluate your roof’s design, drainage, and overall condition before recommending the right roofing system. Contact us today to schedule your free low-slope roofing estimate.

Contact us today to schedule your free shingle roof replacement estimate.