Best Commercial Roofing Contractors in Philadelphia (2026) — Ranked

Commercial and industrial roofing in Philadelphia covers offices, retail centres, warehouses, and multi-unit buildings — most using low-slope membrane systems such as TPO, EPDM, and modified bitumen. The 5 contractors below were selected from our full Philadelphia top 10 as the strongest for commercial work, ranked by experience, manufacturer certifications, BBB standing, and verified reputation.

Philadelphia's commercial roofing market is shaped by the city's extraordinary density of pre-war rowhouse stock, its significant inventory of historic commercial and institutional buildings, and a climate that delivers humid summers, nor'easter winters, and periodic tropical weather remnants from the Atlantic coast. Commercial flat-roof expertise is particularly valuable here because Philadelphia's traditional row-structure building type — even residential in origin — shares many characteristics with low-rise commercial construction: party walls, interior drains, parapet copings, and roof access via interior hatches rather than exterior ladders. Contractors who understand this building type bridge the residential and commercial boundary in ways specific to the Philadelphia market.

Philadelphia's Department of Licenses and Inspections (L&I) is the permit authority for commercial roofing work, and navigating L&I's process — including its online permitting system and required document submissions — demands contractor familiarity with Philadelphia-specific requirements. The city's historic building stock, concentrated in Society Hill, Old City, and Germantown, also involves review by the Philadelphia Historical Commission for any work on locally or federally designated properties. Commercial roofing contractors with Philadelphia experience understand when a project triggers this review and what documentation is needed.

Quick Comparison

Rank	Company	Specialty	Experience	BBB	Website
1	The General Roofing & Contracting Co.	Longest BBB Accreditation — Tri-Manufacturer Certified Since 1988	Since 1987 (38+ Years)	A+ Accredited Since October 1988 (37+ Years)	Visit
2	Henkel Roofing Co., Inc.	Most Established — Top 3% of All PA Licensed Contractors	Since 1984 (41+ Years)	A+ Accredited Since October 1990 (35+ Years)	Visit
3	North American Roofers, Inc.	Best Flat Roofing — NRCA Member & Commercial Specialist	Since 1993 (33+ Years)	A+ Accredited (Since October 2009)	Visit
4	Big Joe’s Roofing LLC	Philly Rowhouse Specialist — 400+ Five-Star Reviews	Since 2018 (8+ Years)	A+ Accredited (Since April 2019)	Visit
5	Alpha Roofing and Siding LLC	GAF Master Elite — Golden Pledge Warranty Authorized	Since 2020 (6+ Years)	A+ Accredited (Since April 2021)	Visit

Detailed Reviews

#1

The General Roofing & Contracting Co.

Longest BBB Accreditation — Tri-Manufacturer Certified Since 1988

ExperienceSince 1987 (38+ Years)

BBB StatusA+ Accredited Since October 1988 (37+ Years)

SpecialtyGAF Certified, Owens Corning Certified, CertainTeed Certified

Service Area(215) 482-3444

Also known as Ed Shinn General Roofing, The General Roofing & Contracting Co. holds the oldest continuous BBB A+ accreditation of any Philadelphia roofing contractor in this directory — accredited since October 31, 1988, representing over 37 uninterrupted years of BBB standing. With tri-manufacturer certification status across GAF, Owens Corning, and CertainTeed simultaneously, the company offers manufacturer-backed warranty access from all three of the industry’s dominant material brands. Based on Ridge Avenue in the Roxborough/Manayunk corridor, the company has spent nearly four decades specializing in the traditional row homes, twins, and older housing stock that defines Northwest Philadelphia. Led by President Edmond G. Shinn, the company is registered under PA HIC# PA059869.

Residential Roofing Commercial Roofing Shingle Roofing Flat Roofing Seamless Gutters General Contracting Rowhouse Roofing

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#2

Henkel Roofing Co., Inc.

Most Established — Top 3% of All PA Licensed Contractors

ExperienceSince 1984 (41+ Years)

BBB StatusA+ Accredited Since October 1990 (35+ Years)

SpecialtyGAF Certified, HIC# PA084332

Service Area(215) 482-4445

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.

Residential Roofing Shingle Roofing Flat Roofing Siding Gutters Skylights Rowhouse Roofing

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#3

North American Roofers, Inc.

Best Flat Roofing — NRCA Member & Commercial Specialist

ExperienceSince 1993 (33+ Years)

BBB StatusA+ Accredited (Since October 2009)

SpecialtyNRCA Member, HIC# PA022262

Service Area(215) 228-4436

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.

Flat Roofing Modified Bitumen EPDM / Rubber TPO Built-Up Roofing Commercial Roofing Historic Renovations

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#4

Big Joe’s Roofing LLC

Philly Rowhouse Specialist — 400+ Five-Star Reviews

ExperienceSince 2018 (8+ Years)

BBB StatusA+ Accredited (Since April 2019)

SpecialtyGAF Certified, HIC# PA144904

Service Area(267) 310-7303

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.

Rowhouse Roofing Flat Roofing EPDM Repair Shingle Roofing Skylights Siding & Gutters 24/7 Available

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#5

Alpha Roofing and Siding LLC

GAF Master Elite — Golden Pledge Warranty Authorized

ExperienceSince 2020 (6+ Years)

BBB StatusA+ Accredited (Since April 2021)

SpecialtyGAF Master Elite, HIC# PA163026

Service Area(267) 764-7663

Alpha Roofing and Siding holds the single highest manufacturer credential of any contractor in this directory: GAF Master Elite certification, held by fewer than 2% of roofing contractors nationwide. This designation requires proper state licensing, adequate insurance, a strong reputation, and passing a quality certification exam — and it unlocks the GAF Golden Pledge Limited Warranty, providing the most comprehensive residential roofing warranty available: 50-year material coverage and 25-year workmanship coverage, including factory inspection. Despite being the youngest contractor on this list (founded 2020), Alpha Roofing’s Master Elite status is a meaningful differentiator for homeowners who prioritize the highest available warranty protection. Based in Port Richmond, they serve Philadelphia and commercial clients into New Jersey.

Residential Roofing Commercial Roofing GAF Systems Golden Pledge Warranty Eco-Friendly Roofing Historic Restoration Siding

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Commercial Roofing in Philadelphia: Rowhouses, Historic Corridors, and a Complex Permit Landscape

For Philadelphia Commercial Properties With Large Flat Roof Footprints in Dense Urban Blocks

Philadelphia's Center City and surrounding commercial corridors include mid-rise office buildings, institutional campuses, and retail properties where flat-roof area spans thousands of square feet per building. Commercial specialists experienced in urban Philadelphia logistics manage material delivery to sites with no staging area, access via interior utility hatches, and coordination with building management on tenant notification. Contractors who handle only suburban commercial work may underestimate the complexity of dense urban Philadelphia sites.

When a Historic Building's Flat Section Requires Material-Compatible Replacement

Philadelphia has more properties listed on the National Register of Historic Places than any other US city except Washington, D.C. Flat-roof replacement on many of these buildings triggers a consultation with the Philadelphia Historical Commission or, for Section 106 projects, with the Pennsylvania SHPO. Contractors with experience on Philadelphia historic commercial properties know which membrane systems and detail approaches are likely to receive approval, saving project teams from costly re-design cycles.

After Nor'easters or Summer Storms Have Damaged Parapet Flashings and Copings

Philadelphia's commercial buildings face a specific vulnerability pattern in major weather events: parapet wall copings separate from their base flashings under wind uplift, allowing water to enter the wall cavity and insulation layer rather than the roof surface proper. Commercial roofing specialists understand this failure mode and inspect parapet conditions alongside membrane surface during any post-storm assessment. Repairing only the surface without addressing coping conditions produces repeat failures.

Frequently Asked Questions

How many commercial roofing contractors are in Philadelphia?

Our directory lists 5 independently verified commercial roofing contractors serving Philadelphia, Pennsylvania, ranked by experience, certifications and reputation. The General Roofing & Contracting Co. is ranked #1. There are no paid placements.

How do I choose a commercial roofer in Philadelphia?

Confirm licensing and insurance for Pennsylvania, ask for commercial project references in Philadelphia, get multiple written quotes, and check each contractor's BBB standing. Every company listed here has been independently researched.

What are the licensing requirements for commercial roofing contractors in Philadelphia?

Pennsylvania does not have a statewide roofing contractor license, but the City of Philadelphia requires that general contractors and trade contractors obtain a Home Improvement Contractor registration and carry appropriate general liability and workers' compensation insurance. Commercial roofing projects above certain thresholds may also require a licensed design professional to seal submitted drawings. Buyers should verify the contractor's Philadelphia business license status and insurance certificates directly before signing a contract.

What commercial flat-roof systems dominate Philadelphia re-roofing projects?

TPO is the most specified single-ply membrane for new commercial roofing across Philadelphia, favored for its heat-weld seam integrity and performance under the region's temperature extremes. Modified bitumen SBS is common on re-roofing projects over existing built-up substrates, particularly on the rowhouse and mid-rise commercial stock where a full tear-off is impractical. EPDM and PVC appear on specialty applications, and built-up roofing (BUR) remains present on older mid-rise commercial stock that has not yet been re-roofed.

How long does a commercial roofing permit typically take to obtain from Philadelphia's L&I?

Philadelphia's Department of Licenses and Inspections processes commercial roofing permits through its eCLIPSE online system, and straightforward re-roofing permits without structural changes can be obtained relatively quickly by contractors who submit complete documentation. Projects that involve structural repairs, historic properties, or large scope changes take longer and may require plan review by L&I staff. Buyers planning a major commercial re-roofing project should factor the permit timeline into their project schedule and not assume work can begin immediately after contract signing.

Best Commercial Roofing Contractors in Philadelphia