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Commercial Flat Roofs, Done Right
Focused exclusively on commercial flat and low-slope roofs — and trusted by property owners and managers in all 50 states.
Flat Roof Replacement
Complete tear-off and installation of a new commercial flat-roof system, engineered for your building and climate.
- TPO, EPDM, Modified Bitumen
- Manufacturer-backed warranties
- Minimal business disruption
Flat Roof Repairs
Fast leak detection, seam and flashing repair, and storm-damage response — 24/7 emergency service nationwide.
- Infrared leak detection
- Emergency tarp & dry-in
- Insurance claim support
Coatings & Maintenance
Silicone and acrylic restoration coatings plus scheduled maintenance plans that extend roof life 10–15 years.
- Restore instead of replace
- Energy-saving reflective coatings
- Preventive inspection plans
We Install Every Major System
The right membrane depends on your building, budget, and climate. We'll recommend the best fit with your instant estimate.
TPO
Energy-efficient white membrane with heat-welded seams that reflects UV and lowers cooling costs.
EPDM
Durable rubber membrane ideal for large flat roofs, with a proven 25+ year lifespan.
Modified Bitumen
Multi-layer asphalt system with excellent waterproofing and puncture resistance.
Coatings
Silicone and acrylic restoration coatings that extend roof life 10–15 years for a fraction of replacement.
See The Transformation
Drag the slider to see real before-and-after results from our commercial flat-roof projects. This is the level of work that protects your building — and your bottom line.
- Stop active leaks and water damage at the source
- Cut cooling costs with reflective systems
- Add years of protected service life
The Nationwide Flat-Roof Network
Licensed, Bonded & Insured
A vetted, fully-credentialed roofing network operating in all 50 states — so you're protected wherever your property is.
50+ Years Of Experience
America's flat-roof specialists since 1973. Commercial flat roofing is all we do — and we've been doing it for half a century.
Instant, Honest Pricing
No pressure, no waiting days for a quote. Get a real ballpark in seconds, then a free on-site verification when you're ready.
Select your state to get your instant estimate
Serving All 50 States
From single storefronts to multi-building portfolios, our nationwide network delivers consistent, code-compliant commercial flat-roof work coast to coast. One trusted partner for every property you manage.
Trusted By Property Owners Nationwide
The instant estimate was spot-on with the final number after their inspection. Quick, professional, and no surprises. Our warehouse roof has been bone dry through two storm seasons.
Managing properties in three states, I needed one reliable roofing partner. Grant Roofs USA handled all of them with the same quality and clear pricing. Exactly what I was looking for.
Had an active leak on our medical building. They responded the same day, dried it in, and gave us a coating option that saved us from a full replacement. Honest people.
Your Flat-Roof Estimate Is 60 Seconds Away
Enter your ZIP, answer a few quick questions, and see your numbers instantly. No obligation, no on-site visit required to start.
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Calculating Your Estimate…
Analyzing your project details and regional pricing.
Commercial Flat Roof Estimate
A flat-roof specialist will also reach out to schedule your free on-site verification. We've emailed a copy of this estimate to you.