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. Stephan Roofing & Maintenance has the training and equipment to handle all of it across Stephan.
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 Process
Free Assessment
Our inspector walks your commercial roof and documents every issue: ponding areas, seam failures, flashing deterioration, clogged drains, and UV damage. Photos and measurements provided in a report you can share with your property manager or ownership.
Detailed Proposal
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.
Professional 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.
Final Inspection
Final roof inspection with photo documentation. Warranty paperwork provided. We recommend an annual maintenance plan to catch issues early and maintain warranty compliance.
What Stephan 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."
"After getting several quotes, these guys stood out with their honesty and knowledge. No pressure, just straightforward advice and excellent workmanship."
Why Choose Stephan 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.
Licensed & Insured
Fully licensed commercial contractor in SD. $2M general liability, workers' comp on every crew member. Your property and your business are protected.
16+ Years Commercial Experience
We've been installing commercial roofs in Stephan for 16 years. Retail, warehouse, office, restaurant, multi-family. We handle it all.
Manufacturer Certified
Certified installer for major commercial membrane manufacturers including Carlisle, Firestone, GAF, and Johns Manville. Factory training and warranty authorization.