In the Washington D.C. metropolitan area, building owners, facility managers, consultants, and general contractors count on P ... ioneer Roofing Systems for their commercial roofing needs. Since 1978, we have set the standard for quality workmanship and service in roofing replacement, repair, and new construction. We specialize in energy star certified thermoplastic roofing, vegetative roofing, metal roofing, custom and ornamental sheet metal, daylighting, solar solutions, and roof restoration. read more