Commercial roofing covers a different set of problems than a house re-roof. Contractors in this category work on low-slope and flat systems (TPO, EPDM, modified bitumen, built-up roofing), metal panel roofs on warehouses and retail buildings, and the coating and restoration jobs that stretch a roof's life instead of replacing it outright. In Roswell that means everything from strip-mall storefronts along Holcomb Bridge Road to office parks, medical buildings, and light-industrial facilities near the Ga 400 corridor. We've collected 34 businesses in this category, ranging from small local crews to larger commercial-only operations.
What to look for before you hire
Start with licensing and insurance, including workers' comp, since commercial roof work carries real fall and liability risk. Ask whether the crew is a manufacturer-certified installer for the specific system (GAF, Carlisle, Firestone/Elevate, etc.), because that certification usually extends the warranty length and backs it with the manufacturer instead of just the contractor. Get a written scope that specifies tear-off vs. overlay, insulation R-value, drainage fixes, and flashing details around HVAC curbs and penetrations, since that's where most commercial roofs actually fail. Ask about project timeline and how they handle weather delays, since a leak during a partial tear-off can shut down a business.
How we rank contractors
Our scoring weighs licensing, verified reviews, response time, and the range of commercial systems a contractor actually installs, not just markets. For a full breakdown of businesses and how they stack up, see the ranked guide to Roswell roofing contractors. Details on how we build these rankings are on the methodology page.
