Best Flat & Low-Slope Roofing Contractors in Philadelphia

In business since 1984 and BBB A+ accredited continuously since October 1990, Henkel Roofing is one of the two most tenured roofing contractors in Philadelphia with active BBB standing. Led by President Joseph P. Henkel, the company has earned a BuildZoom score of 112 — placing it in the top 3% of all licensed contractors across Pennsylvania, a metric derived from permit volume, contractor licensing history, and project scope. With 133+ permitted projects in Philadelphia documented in recent years and 41 years of experience concentrated in the Manayunk, Roxborough, and Wissahickon neighborhoods, Henkel has deep institutional familiarity with the row homes, semi-detached twins, and older housing stock of Northwest Philadelphia. GAF certified with residential and commercial roofing, siding, gutters, and skylight capabilities.

Murphy Roofing has been in continuous operation since 1969 — more than 56 years — making it the longest-running roofing company in Philadelphia by tenure. Founded by Bill Murphy, a Roxborough native and Vietnam veteran who started the business at age 21, the company has evolved into a true multi-generational operation involving two sons (Michael and Shawn), a nephew, and a grandson. Their BBB file dates to 1974, reflecting five decades of market presence in the community. The company’s Roxborough base on Ridge Avenue has served the densely-knit Northwest Philadelphia neighborhoods as a trusted, locally-owned alternative to larger regional contractors. Services span shingle roofing, flat roofing, siding, gutters, skylights, chimney repairs, and roof snow removal across Northeast Philadelphia, Germantown, Mount Airy, Southwest Philadelphia, and parts of Montgomery County.

A second-generation family business since 1983, Joe Fisher & Sons Roofing occupies a specialized niche within Philadelphia’s roofing market: church, chapel, and ornate structure roofing, paired with heavy-gauge custom copper and metal fabrication. Custom copper work demands craftsmanship well beyond standard residential roofing, and few Philadelphia contractors maintain this capability over 43+ continuous years. Their flat roof expertise spans TPO, EPDM, modified bitumen, and hot-asphalt systems. Service area coverage extends across Philadelphia into Montgomery, Bucks, Delaware counties (PA) and Camden County (NJ) — one of the broader footprints on this list. Additional services include storm damage repair and roof snow removal.

North American Roofers has built its 33-year reputation on commercial and flat roofing systems — the core material needs of Philadelphia’s enormous rowhouse stock and its commercial building inventory. Their system capabilities span built-up roofing (BUR), modified bitumen, EPDM, TPO, hot mop, torch-down, metal, and shingle — one of the most comprehensive flat-roof portfolios in Philadelphia. Notable past projects include the Philadelphia Naval Base and Center City historic renovations. The company is a member of the National Roofing Contractors Association (NRCA), reflecting adherence to national professional standards. Based in North Philadelphia near Logan/Olney, the company serves dense rowhouse corridors where flat roof replacement expertise is critical.

Universal Roofing & Contracting offers the widest certified material portfolio of any contractor in this directory. Their certifications span three major roofing manufacturers (GAF, Owens Corning, CertainTeed), two major window manufacturers (Pella, Andersen), and green roof installation — making them the only Philadelphia contractor in this directory to hold green/eco-friendly roofing certification. Flat roof systems include EPDM, modified bitumen, BUR, TPO, CSPE/Hypalon, and torch-down; steep-slope systems include asphalt shingles, slate, copper, metal, and cedar. Their BBB accreditation dates to the year the company was founded (April 2004), an unusual distinction reflecting early commitment to accountability. 24-hour emergency service is available, and the company is licensed and insured in both PA and NJ.

The Roof Doctor is the only contractor in this directory to explicitly and exclusively market Philadelphia rowhouse flat roofs as its core specialty. Founded in 1980 and operating from a Sansom Street address in Rittenhouse Square — the heart of Philadelphia’s dense urban rowhouse corridor — the company has spent 46 years focused on the rubber roofing, roof deck installations, and skylight work that rowhouse owners in Center City, Graduate Hospital, Society Hill, and surrounding neighborhoods require. The company is a small specialist rather than a high-volume contractor, positioning it as the go-to for urban homeowners who want a roofer with deep, local, flat-roof-specific knowledge rather than a generalist. Current ownership (Harry E. Rohlfing Jr., CEO) took over in 2013.

Umbrella Roofing holds GAF Certified Plus status — the second-highest GAF contractor tier, enabling access to GAF’s Silver Pledge Limited Warranty on qualifying installations. This makes Umbrella Roofing the highest GAF-tier contractor among the long-tenured firms in Northeast Philadelphia, where the company is based. In 15 years of operation, they have accumulated 162+ five-star Google reviews across a broad service area covering six counties in PA and NJ. Storm damage restoration and insurance claim assistance are a particular strength, and 24-hour availability sets them apart for emergency work. Services span asphalt shingles, flat roofing (TPO, EPDM, modified bitumen), gutters, siding, windows, and skylight repair. Licensed and insured in both PA and NJ.

Big Joe’s Roofing brands itself explicitly as a “Philly Rowhouse Specialist” — one of only two contractors in this directory to make rowhouse expertise its primary marketing position. Founded in 2018 by Joe Gagne, who brings 20+ years of prior roofing experience, the company has built a 400+ Google review record at 4.9 stars in just eight years — a volume and rating that exceeds most longer-tenured competitors. Operating primarily from Northeast Philadelphia with active coverage across Fishtown, Center City, South Philly, and Manayunk, the company is accessible across the full Philadelphia geography. Services include shingle roofing, flat rubber roofing (EPDM repair), roof replacement, skylight repair, residential and commercial, and siding and gutters. Licensed in both PA and NJ with 24/7 availability.