What will your roof replacement actually cost?
Enter your building’s roof size and specs below for an instant cost range — priced across six commercial membrane systems, tear-off vs. recover, and site access. No email required to see the number.
Roof size
Total roof area to be replaced. Roofers commonly price in “squares” — 1 square = 100 sq ft.
Roofing membrane
Fully installed cost per square foot varies by material, seam method, and warranty tier.
Project scope
Tear-off removes the existing roof to the deck; recover installs new membrane over sound existing roofing where code allows.
Roof complexity
Rooftop units, drains, skylights, and parapet walls all add labor and detail work.
Building access
Region
Material and labor pricing shift regionally — use this as a rough regional index, not a local quote.
Get a detailed, itemized quote
A calculator can’t see your roof. Send us your numbers and we’ll follow up with a scoped proposal — line-itemed materials, labor, disposal, and warranty terms — based on your building.
How commercial roofing systems compare
Six systems dominate low-slope commercial roofing. Cost per square foot reflects fully installed pricing — membrane, insulation, fasteners or adhesive, and labor — before regional and site-access adjustments.
| System | Cost / sq ft | Typical lifespan | Best for |
|---|
Factors that affect commercial roof replacement cost
Tear-off vs. recover
Removing and disposing of an existing roof typically adds $1.50–$2.50 per square foot versus recovering over a sound existing membrane.
Roof penetrations
Every HVAC curb, drain, skylight, and pipe boot is a detail that takes labor and flashing material to seal correctly.
Building access
Crane staging, occupied-building phasing, and multi-story sites add equipment and safety costs on top of the base install.
Insulation & code
Bringing roof insulation up to current energy code during a tear-off can add $1–$3 per square foot, often required by permit.
Warranty tier
A manufacturer’s No Dollar Limit (NDL) warranty costs more up front than a standard materials-only warranty but transfers with the building.
Region & season
Labor rates, permitting, and contractor demand shift the same job by 10–20% between metro regions and by season.