Flat roofs on commercial buildings deal with challenges residential roofs don't: rooftop HVAC units, exhaust fans, plumbing penetrations, satellite equipment, foot traffic, and ponding water. Granger Roofing & Maintenance has the training and equipment to handle all of it across Granger.
Our Commercial Roofing Process
Commercial Roof Assessment
Before we recommend anything, we inspect everything. Membrane, seams, flashings, drains, penetrations, parapet walls, and rooftop equipment curbs. Core samples test for trapped moisture in the insulation. Honest assessment. No scare tactics.
Scope & Estimate
We present options when they exist: repair vs. replace, TPO vs. PVC, 15-year vs. 20-year warranty. Each option is priced so you can make an informed decision based on your budget and building plans.
Commercial Installation
Factory-trained crews using proper equipment, hot-air welders for TPO/PVC, torch equipment for modified bitumen, and adhesive systems for EPDM. Every seam, flashing, and penetration detail inspected before we leave.
Warranty & Maintenance
Your commercial roof gets a detailed completion package: as-built documentation, warranty certificates, maintenance recommendations, and emergency contact information for Granger Roofing & Maintenance.
What Granger Customers Say
"Our neighbors recommended them and now we understand why. Meticulous attention to detail and they treated our home like it was their own."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
"Best experience we've ever had with a home service company. On time, on budget, and the results exceeded what we expected. Truly top-notch."
Why Choose Granger Roofing & Maintenance for Commercial Roofing?
Maintenance Programs
Annual and semi-annual inspection contracts catch problems early and keep your warranty valid. Preventive maintenance costs a fraction of emergency repairs.
All Commercial Systems
TPO, EPDM, PVC, modified bitumen, built-up, metal. We install and repair every commercial roofing system. Material selection matched to your building's specific needs.
Licensed & Insured
Fully licensed commercial contractor in IA. $2M general liability, workers' comp on every crew member. Your property and your business are protected.
23+ Years Commercial Experience
We've been installing commercial roofs in Granger for 23 years. Retail, warehouse, office, restaurant, multi-family. We handle it all.
About Our Granger Commercial Roofing Services
We install every major commercial roofing system: TPO single-ply, EPDM rubber membrane, PVC for chemical-resistant applications, modified bitumen for high-traffic roofs, and built-up roofing for proven long-term performance. Material selection depends on your building, budget, and specific exposure conditions.
Our commercial roofing crew works around your business schedule. We understand that noise, debris, and access restrictions affect your tenants and operations. We schedule work to minimize disruption and contain debris throughout the project.