Priced by square footage, system, and access
Commercial roofing is quoted differently than residential — the number depends on total square footage, the roofing system (TPO, EPDM, PVC, metal, or built-up), roof access, and whether the existing system can be recovered or needs full tear-off. We provide a firm written quote after a free site assessment, scoped specifically to your property and scheduled around your business hours, not a generic per-square-foot estimate.
Commercial roofing systems
TPO & single-ply
Energy-efficient, heat-reflective membrane systems for flat and low-slope commercial roofs. See roof coating for extending the life of an existing system.
Flat & low-slope
Built-up and modified bitumen systems for properties where drainage and ponding are the primary design concerns.
Metal roofing
Standing seam and corrugated metal systems for warehouses, industrial, and agricultural buildings.
Minimal disruption, maximum documentation
Free site assessment
We walk the roof and document the actual condition on video before quoting anything, scheduled at a time that works for your property.
Written scope by system
One clear quote by square footage and system type, with a realistic timeline that accounts for your operating hours.
Work scheduled around you
Off-hours or phased work available for properties that can’t have roof crews overhead during business operations.
Completion documentation
Video record of the finished system for your property records, insurance, or future maintenance planning.
See the right page for your property
If it’s a smaller residential job or you already know the scope, these pages might fit better.
0% financing options for qualifying commercial projects
A $30,000 roof can run as low as $250/month; a $75,000 system around $625/month over 10 years on qualifying terms. See roofing financing → for full details.
Get a Free Site AssessmentWhat property owners say
4.8 stars across verified Google reviews. Read every review →
They not only did everything they said they would do in the estimate, they went above and beyond and came out on New Year’s Day to finish the job.
Two other Fresno roofers wanted to sell a full replacement. Our video showed the real problem was a repair — saved thousands.
David provided an estimate and video and did a great job explaining the situation clearly, no pressure at all.
The same standard as every other job
Every commercial project follows The Grandmark Standard → — video-documented assessment and completion records that support your property maintenance files, insurance requirements, or ownership transitions.
Commercial roofing by market
Site assessments scheduled around your business hours in all 4 markets.
Commercial roofing FAQ
How is commercial roofing priced differently than residential?
Commercial quotes are based on total square footage, roofing system, roof access, and whether the existing system can be recovered or needs full tear-off — not a flat per-project rate.
Can the work be scheduled around our business hours?
Yes, off-hours and phased scheduling is available for properties that can’t have crews overhead during operating hours.
Do you work on occupied buildings?
Yes, most commercial roofing happens with the building fully occupied and operating — we plan access and noise around your specific concerns during the site assessment.
What roofing systems do you install?
TPO, EPDM, PVC single-ply membranes, built-up and modified bitumen flat systems, and standing seam or corrugated metal roofing.
Do you offer financing for commercial roofing?
Yes, 0% financing options are available for qualifying commercial projects. See roofing financing for full terms.
Get a commercial roofing quote
Free site assessment, scheduled around your operations, video-documented every step.
We’ll respond in 20 minutes or less
No pressure, just real numbers. Scroll up to use the quote form, or call (866) 945-6473 instead.
Call (866) 945-6473