Best Roofers in Philadelphia, PA — 2026 Rankings

Philadelphia’s housing stock is some of the oldest in the country. Brick rowhomes in South Philly and Fishtown sit on low-slope roofs that pond water, twins in the Northeast and Roxborough carry pitched shingle roofs, and older homes across the city still have slate, flashing, and chimney details that a general handyman shouldn’t touch. Add freeze-thaw winters and hot, humid summers, and choosing the right roofer matters more than it might seem.

We ranked the top-rated roofing contractors serving Philadelphia by review rating and volume, years in business, and the credentials they list — licensing, insurance, weekend hours, and online estimates. All five are based just outside the city — in Bucks County and across the river in South Jersey — and serve Philadelphia homeowners. Whether you need a repair, a full replacement, or help with a commercial property, start with the names below.

Top 5 Roofing Contractors in Philadelphia, PA

1. Duane Mainardi Roofing LLC — Hands-On Project Management

Rating: 5.0 ★  |  Reviews: 152  |  Licensed, Insured, Open Weekends

What stands out in Mainardi’s reviews is leadership on the jobsite — site foreman Keith is named repeatedly for keeping homeowners informed daily and checking quality as the work goes. Customers describe efficient crews and properties left thoroughly clean.

Based in Marlton, NJ, the team handles roof replacements and siding, which suits bigger exterior projects. Reviewers also mention a willingness to accommodate specific requests and to stand behind completed work.

2. Hammond Roofing — Honest Diagnostics, 32 Years in Business

Rating: 5.0 ★  |  Reviews: 142  |  32 years in business, Licensed, Insured, Open Weekends

Hammond has been in business for 32 years and is based in Maple Shade, NJ. Their reviews repeatedly highlight honest assessments — finding the root cause of recurring leaks and avoiding unnecessary upsells.

Customers describe fair pricing, efficient workmanship, and meticulous cleanup on both repairs and full installations. Online estimates are available, which makes Hammond an easy first call if you want a straight answer about what your roof actually needs.

3. Peak Roofing and Siding — Straight Answers on Tricky Problems

Rating: 5.0 ★  |  Reviews: 137  |  Licensed, Insured

TJ and the Peak team are known for quickly diagnosing roofing problems other contractors struggled to pin down. Reviewers describe detailed inspections, proactive flagging of issues that could cause trouble later, and no high-pressure sales.

Peak will tell you when a problem isn’t actually a roofing issue, even when that means not getting the job. That honesty, plus efficient work and competitive pricing, makes this Swedesboro, NJ company a solid pick if you’ve been burned by vague bids before.

4. MACK Solar and Roofing — Roofing Plus Solar

Rating: 5.0 ★  |  Reviews: 126  |  Licensed, Insured, Open Weekends

MACK is the pick if solar is part of your plans. Handling both the roof and the solar installation means one company is accountable for the whole job. Reviewers praise their help with insurance claims and projects that finish on schedule.

This locally owned company is based in Collingswood, NJ. Customers mention responsive communication, competitive pricing, thorough cleanup, and quality craftsmanship on roof replacements and solar installs alike.

5. KPI Jr. Exteriors — Fast Replies, No Upselling

Rating: 5.0 ★  |  Reviews: 119  |  9 years in business, Licensed, Insured, Open Weekends

Owner Mike gets consistent credit in reviews for responding to customer questions within hours and managing each project with careful attention to detail. Customers describe quality craftsmanship on roofing, siding, windows, and full exterior renovations.

Based in Fairless Hills, PA, KPI Jr. is praised for finishing projects on time at fair, competitive prices without unnecessary upsells — a good fit if you’re planning a roof replacement alongside other exterior work.

How to Choose the Best Roofer in Philadelphia, PA

A string of 5-star ratings only tells you so much. Use these checks before you invite anyone onto your roof:

• Check registration and insurance. Pennsylvania requires home improvement contractors to register with the Attorney General’s office — ask for the registration number. Contractors based in New Jersey should be able to show the same for working in Pennsylvania. Ask for proof of liability insurance and workers’ compensation too.
• Look at review volume and recency, not just the star rating. Read a few recent reviews for mentions of communication, cleanup, and whether the final price matched the quote.
• Get at least two or three written estimates. Compare scope, materials, and timeline, not only the price. Be wary of a quote far below the others.
• Match the contractor to your roof. Flat rowhome roofs, pitched shingle roofs, and slate each need different skills. Ask how many roofs like yours they’ve done recently.
• Get warranty terms in writing. Find out what covers workmanship, what covers materials, and for how long.

Commercial Roofing in Philadelphia

If you manage a commercial or mixed-use building, the checklist changes. Most commercial roofs in the city are low-slope systems such as TPO, EPDM, modified bitumen, or built-up roofing, and the right contractor depends on which one you have. None of the five companies above lists commercial roofing as a specialty, so ask directly about their commercial experience, or browse the full Philadelphia directory for more options.

• Ask about manufacturer certifications. Many extended commercial warranties are only available when a manufacturer-certified installer does the work.
• Ask about experience with your roof system. TPO, EPDM, and modified bitumen install differently. Ask how many roofs of your type they’ve completed.
• Ask for a moisture survey before a reroof. An infrared scan or core samples show whether the existing insulation is wet, which affects whether it can stay.
• Confirm insurance meets your lease or lender requirements. Get the certificate of insurance before work starts.

Common Roofing Services in Philadelphia, PA

Philadelphia roofers handle flat roof repair and recoating on rowhomes, shingle repair and replacement, leak diagnosis, flashing and chimney work, gutters, siding, and storm damage inspections. Some also offer solar installation and help with insurance claims after storm damage.

Frequently Asked Questions

My flat roof keeps leaking in the same spot — do I need a full replacement?

Not necessarily. Recurring leaks often come from a specific seam, flashing detail, or drain. A good roofer will find the cause before recommending a replacement. Get a second opinion if the first contractor goes straight to a full tear-off without explaining why.

Is it a problem if my roofer is based in New Jersey?

No — many South Jersey contractors work regularly in Philadelphia. Just confirm they’re registered to work in Pennsylvania, carry insurance, and will pull any permits the job needs.

Will homeowners insurance cover storm damage to my roof?

Most policies cover sudden damage from wind, hail, or fallen trees, but not wear and tear or neglected maintenance. Photograph the damage before any work begins, and ask your roofer for a written damage report to support your claim.

Ready to get quotes? Browse all verified roofing contractors in Philadelphia, PA — compare ratings, reviews, and credentials side by side.