Commercial roofing in Orange County presents a different set of requirements, stakes, and considerations than residential roofing. A failed commercial roof doesn’t just mean a homeowner inconvenience — it means business interruption, inventory damage, liability exposure, and in the case of multi-tenant buildings, damage to multiple occupants simultaneously.
Cali Roofing Solutions provides commercial roofing services throughout Orange County, Riverside County, and greater Los Angeles. We’re a GAF Master Elite® and CertainTeed SELECT ShingleMaster™ Premier certified contractor with experience across retail, office, industrial, multi-family, and mixed-use commercial properties. Every commercial project is backed by our 30-Year Labor Warranty and 50-Year Material Warranty.
Commercial Roofing Systems We Install in Orange County
TPO Membrane Roofing — the dominant commercial flat roof system in OC in 2026. Heat-welded seams, California Title 24 compliant in white/light colors, 15–25 year lifespan depending on thickness. Best for: most commercial flat-roof applications in OC’s climate zones. Available in 45 mil, 60 mil, and 80 mil thicknesses — we specify 60 or 80 mil on all commercial applications for durability.
Modified Bitumen — SBS and APP systems applied in torch-down, self-adhered, or cold-applied methods. Excellent puncture and traffic resistance for rooftop HVAC access and equipment. Granulated white cap sheets provide Title 24 compliance.
Built-Up Roofing (BUR) — multi-layer asphalt and reinforcing fabric system. Long-proven on OC commercial buildings, particularly suited for large industrial roof areas where per-square-foot cost matters. Lifespan 15–25+ years.
Metal Roofing — standing seam and metal panel systems for commercial applications requiring maximum longevity (40–60+ years). Appropriate for industrial, agricultural, and premium commercial applications.
Roof Coatings — elastomeric and silicone coatings that restore aging commercial membranes, extend life by 10–15 years, and provide Title 24 compliance where the existing system doesn’t qualify. Significantly less expensive than full replacement when the existing deck is sound.
Title 24 Cool Roof Compliance for Commercial Properties in OC
California’s Title 24 Energy Code applies to commercial re-roofing as well as residential. For low-slope commercial roofs in OC’s climate zones, CRRC-rated products with solar reflectance ≥0.63 and thermal emittance ≥0.75 are required on all permit-pulled re-roofing. Cali Roofing Solutions includes complete Title 24 documentation and CRRC product compliance with every commercial permit package.
Commercial Roof Inspection and Maintenance Programs
Proactive maintenance is especially critical for commercial roofing. A commercial flat roof with a $45,000 replacement cost can be maintained for $1,500–$3,000 per year in professional inspection and minor repair — extending its life by 5–10 years and preventing the business disruption of emergency replacement.
Our commercial roof maintenance program includes:
- Annual written inspection with photographic documentation
- Seam and flashing inspection with proactive re-sealing at vulnerable points
- Drainage assessment and clearing
- Penetration and equipment curb inspection
- Annual condition report formatted for property management records and insurance requirements
Commercial Roofing Costs in Orange County 2026
- TPO commercial replacement: $6.50–$11.00/sq ft installed depending on roof size, access, and scope
- Modified bitumen replacement: $5.50–$9.00/sq ft
- Roof coating restoration: $2.00–$4.50/sq ft — most cost-effective option when deck and insulation are sound
- Commercial roof repair: $500–$5,000+ depending on scope and system type
Large commercial projects (10,000+ sq ft) qualify for volume pricing. Contact us for a project-specific estimate.
Request a Free Commercial Roof Inspection in Orange County
📞 Call (951) 743-1437 or visit caliroofingsolutions.com. We serve commercial properties throughout Orange County including Anaheim, Irvine, Santa Ana, Huntington Beach, Costa Mesa, Fullerton, Garden Grove, and the Inland Empire. Our free commercial inspection includes a written condition report, remaining life estimate, Title 24 compliance assessment, and full repair vs. replacement recommendation.
See our commercial roofing service page.
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