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. San Joaquin Roofing & Maintenance installs and repairs all of them across San Joaquin.
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.
Our Commercial Roofing Process
Building Inspection
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.
Project Proposal
Commercial roofing proposals from San Joaquin Roofing & Maintenance include detailed specs, phasing plan if applicable, tenant coordination plan, and a realistic timeline. One number, no surprises.
Commercial Installation
Our commercial crew installs per manufacturer specifications and NRCA guidelines. Hot-air welded TPO seams tested with a probe at every joint. Flashing details custom-fabricated for your building's penetrations. Insulation installed to achieve minimum R-value per code.
Warranty Activation
Manufacturer warranty registered upon completion, 15-20 year coverage depending on system and build-up. We offer maintenance contracts to keep your warranty valid and your roof performing for its full life span.
What San Joaquin Customers Say
"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
"Our neighbors recommended them and now we understand why. Meticulous attention to detail and they treated our home like it was their own."
Why Choose San Joaquin Roofing & Maintenance for Commercial Roofing?
Minimal Business Disruption
We schedule around your operations. Phased installation, noise management, and debris containment. Your tenants and customers barely know we're there.
19+ Years Commercial Experience
We've been installing commercial roofs in San Joaquin for 19 years. Retail, warehouse, office, restaurant, multi-family. We handle it all.
Honest Assessments
If a repair or coating extends your roof's life 10+ years, we recommend that over a full replacement. We save you money when the roof allows it.
Emergency Response
Commercial roof leaks damage inventory, equipment, and operations. Emergency response within 24 hours for active leaks on commercial buildings in San Joaquin.