Commercial roofing is a different discipline from residential. Flat and low-slope systems (TPO, EPDM, PVC, modified bitumen, and built-up roofing) each have specific installation requirements and performance characteristics. Harmon Roofing & Maintenance installs and repairs all of them across Harmon.
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.
Detailed Proposal
Your proposal includes material specifications, installation method, warranty terms, project timeline, and total cost. We itemize everything and explain why we're recommending the specific system for your building.
Expert Crew
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 Harmon Roofing & Maintenance.
What Harmon Customers Say
"We called expecting to wait days, but they were here the same afternoon. Fair pricing, quality work, and they kept us informed every step of the way."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
"After getting several quotes, these guys stood out with their honesty and knowledge. No pressure, just straightforward advice and excellent workmanship."
Why Choose Harmon Roofing & Maintenance for Commercial Roofing?
Licensed & Insured
Fully licensed commercial contractor in IL. $2M general liability, workers' comp on every crew member. Your property and your business are protected.
Minimal Business Disruption
We schedule around your operations. Phased installation, noise management, and debris containment. Your tenants and customers barely know we're there.
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.
Maintenance Programs
Annual and semi-annual inspection contracts catch problems early and keep your warranty valid. Preventive maintenance costs a fraction of emergency repairs.
About Our Harmon Commercial Roofing Services
Commercial roof coatings can extend the life of an existing roof by 10-15 years for a fraction of replacement cost. Silicone and acrylic coatings over existing TPO, EPDM, or metal substrates. Not every roof qualifies. We core sample and moisture scan before recommending a coating.
Call (877) 349-1553 for a free commercial roof assessment. We inspect the membrane, flashings, drainage, penetrations, and overall condition. You get a written report with photos and our honest recommendation, repair, coat, or replace.