Full-service commercial roofing — from infrared surveys to single-ply membrane installation to preventive maintenance programs that extend roof life
Average response time: under 2 hours
If you notice any of these issues, contact a licensed CA roofing contractor for a professional assessment.
Ponding water that doesn't drain within 48 hours
Membrane bubbles, blisters, or wrinkles
Seam separation or flashing failure
Interior leaks or ceiling stains in commercial space
Energy costs rising from poor roof insulation
Roof is 15+ years old with no maintenance plan
pinpoint wet insulation without destructive testing to scope repairs precisely
TPO, EPDM, and PVC with 20-30 year manufacturer warranties
silicone and acrylic coatings extend existing roof life 10-15 years at 50% of replacement cost
semi-annual inspections and minor repairs that prevent costly emergencies
phased installation schedules and off-hours work available
Every project follows a structured process so you know exactly what to expect at each stage.
Infrared moisture survey
Core sampling for deck condition
Specification and bid package
Tear-off or overlay decision
Membrane installation
Flashing and penetration detailing
Drainage verification
Manufacturer warranty inspection
Preventive maintenance plan setup
Free inspections • Same-day estimates • CA-licensed crews
We install manufacturer-certified products from industry-leading brands — each backed by warranty protection and proven performance in CA weather conditions.
Every installation includes manufacturer warranty registration plus our workmanship guarantee — up to 50-year material coverage and 25-year labor warranty.
Every commercial roofing project from Davis Roofing & Maintenance includes a complete service package — no hidden fees, no surprise charges.
"Couldn't believe how clean the job site was when they left. Three passes with the magnet, swept the driveway, cleaned the gutters out. My wife said the yard looked better than before they showed up."
"We were quoted $18,500 for a 32-square replacement with Timberline HDZ. They hit the number exactly. No change orders, no surprise fees. That's rare in this business."
"Our insurance company tried to lowball us on the storm claim. Davis Roofing & Maintenance supplemented the estimate and got it approved for $7,000 more. They know the Xactimate system better than the adjuster did."