GAF Certified · In-House Crews
Roofing Services In Philadelphia & Surrounding Areas
From a single lifted shingle to a full tear-off — repair, replacement, storm damage, and every common roofing material. One contractor, in-house crews, and a straight answer about what your roof actually needs.
GAF Certified
In-House Crews
20+ Years
Free Estimates
Get Your Free Roof Inspection
Not sure what you need? That’s what the inspection is for.
Free, no-obligation, itemized. We’ll tell you straight what it needs.
20+ Years On These Roofs
Roofing, Start to Finish
Your roof is the one part of your house you can’t see and can’t ignore. When it’s working, you never think about it. When it’s not, it’s the only thing you think about. Garrison handles all of it — from a single lifted shingle to a full tear-off — for homeowners and property managers across Philadelphia and the surrounding areas.
We’re a GAF certified roofing contractor with in-house crews, which means the people who show up at your house work for Garrison. No subcontractors, no strangers, no passing your job off to whoever’s cheapest that week. And if you’re not sure what your roof actually needs, we’ll come look at it and tell you straight — even when the honest answer makes us less money.
What We Do
Roofing Services
Roofing isn’t one job. It’s a dozen different jobs depending on what your roof is made of and what’s gone wrong. Here’s how it breaks down, with a page for each so you can get into the details that matter for your home.
Repair & Replacement
Roof Repair
Leaks, flashing failures, missing shingles, storm damage. We trace the leak back to where water actually gets in — not just where it drips inside — so we fix it once.
Roof Installation & Replacement
When a repair won’t hold anymore, a new roof done right protects your home for decades. Manufacturer and workmanship warranties, documented from start to finish.
Storm Damage Roof Repair
Wind, hail, and fallen limbs don’t keep business hours. 24-hour emergency response plus insurance documentation, so storm damage doesn’t turn into a second headache.
Roofing By Material
Flat Roofs
TPO, EPDM rubber, PVC, modified bitumen, and Dec-Tec. Flat roofing fails at the seams and drain boxes — and we know exactly where to look.
Shingle Roofs
Architectural asphalt shingle roofing installed to GAF standard — the most common roof on Philadelphia-area homes, for good reason.
Fiberglass Roofs
Fiberglass roofing and roof decks, including Duradek systems. Those small hairline cracks are the most-ignored, costliest repair we see — we catch them early.
Metal Roofing
Standing seam, copper, and galvanized metal roofing that lasts generations — including copper work on historic rowhomes.
Roof Decks
Waterproof roof decks and rooftop terraces built over your flat roof, using fiberglass, Dec-Tec, TPO, or rubber-with-coatings depending on the space.
Property Management
Portfolio roofing for managers and owners — 24-hour response, phased installs, and photo-documented reports across every building you run.
Not sure which category your problem falls into? That’s normal. Start with a free inspection and we’ll point you to the right fix.
Drag The Handle
The Proof Is
On the Roof
Real Garrison jobs, start to finish. Slide between the before and the after.
In Plain Terms
Why Homeowners
Call Garrison First
There are a lot of roofers in this region. Here’s what makes us different.
GAF Certified Residential Roofing Contractor. Our installs meet the manufacturer standard — which is what backs your warranty.
In-house crews, no subcontractors. The crew on your roof is our crew. We hire them, train them, and stand behind their work.
20+ years, and we know these houses. Older Philadelphia rowhomes are built differently and need a roofer who has actually worked on them.
Thermal-drone imaging. Drone-mounted thermal cameras find hidden moisture under the surface, so we fix the real leak instead of guessing.
Documented inspections. Photos and a written report every time — and it matters a lot if you manage a portfolio.
Certified Spanish-speaking team, so every homeowner gets a clear explanation.
Licensed and insured. Honest, no-obligation estimates — free, itemized, and yours to decide on.
24-hour emergency response for active leaks and storm damage across the service area.
Recent Work
Every Roof Type
We Handle
A cross-section of what we’ve been on lately — shingle, flat, deck, and commercial. Tap any photo to open it full size.
One Roofer, Whole Region
Local, Not A Call Center
One Roofer For
The Whole Region
Garrison is a local roofer with roots across the area. We serve Philadelphia and the surrounding communities, including South Jersey, Montgomery County, and Northeast PA and the Poconos. Wherever you are, you get the same in-house crew and the same honest assessment.
Roofing isn’t the only thing we do, either. If your project touches gutters, siding, stucco, or masonry, take a look at our exterior services too — so one contractor can handle the whole outside of your home.
Straight Answers
Frequently Asked Questions
How long has Garrison Roofing been in business?
More than 20 years serving the Philadelphia area, including South Jersey, Montgomery County, and Northeast PA into the Poconos.
Is Garrison Roofing licensed and insured?
Yes. We’re fully licensed, insured, and OSHA compliant. Our crews are trained to work safely on the older and steeper roofs common throughout the region.
Does Garrison Roofing use subcontractors?
No. All of our crews are in-house. The people who show up to your home work for Garrison, are trained to our standard, and are accountable to the company that signed your contract.
What certifications does Garrison Roofing hold?
We’re a GAF Certified Residential Roofing Contractor, which means our workmanship has been vetted by the manufacturer and we’re authorized to install their full roofing systems. Our team is also OSHA compliant and includes certified Spanish-speaking members.
Free & No-Obligation
Get a Free Roofing Estimate
Whether you’ve got an active leak, a roof that’s seen better days, or you just want a straight answer on where things stand — start with a free inspection from a roofer who’ll tell it to you honestly.