Harbor Roofing and Contracting, Inc. is a full-service exterior building solutions provider based in Washington, DC. Founded in 2014, the company offers commercial roofing installation, replacement, repair, and inspection services, along with waterproofing solutions across the Mid-Atlantic region. Their capabilities include membrane sheet, metal, shingles, wall panels, green roofing systems, and coating systems. Harbor Roofing also provides preventative maintenance and emergency repair services. The company is known for its apprenticeship program and commitment to safety, with all employees OSHA 10 certified. Harbor Roofing and Waterproofing, established in 2019, is a Washington, D.C. Certified Business Enterprise offering 100% CBE participation for roofing and waterproofing projects.

Star & Roofing is a roofing contractor based in Washington, DC. They specialize in roof installation and replacement services within the city. With over 15 years of experience, they have a long history of providing roofing solutions. The business is known for punctuality and consistent service.

Wagner Roofing Company has been serving Washington, DC, and the surrounding Maryland and Virginia areas for over 100 years. The company specializes in roofing installation, replacement, and repair, with a particular focus on complex roofing applications and historic restoration. Wagner Roofing Company is known for preserving iconic buildings and residential homes through skilled craftsmanship and innovative building services, operating since 1914.

DC Roof Repair Company provides roofing services in Washington, DC, including roof installation, replacement, repair, and inspection. They offer roof certification and handle roof leak repairs. The company is known for quick scheduling and professional damage assessment.

Cole Roof Systems Inc is a roofing contractor based in Washington, DC. They provide roofing installation and replacement services in the area. The company handles complete roof replacements and other roofing needs.

Grellis Construction is a roofing contractor based in Alexandria, VA, offering installation and replacement services. The company has over 20 years of experience and works with certified installers to serve major remodeling companies in the area. Grellis Construction focuses on delivering quality workmanship and professional design support to ensure projects are completed correctly the first time.