Commercial Roof Replacement
When repairs aren't enough, we remove the old membrane and install a new system suited for your building and budget — with upgraded insulation and energy-efficient options.
What We Offer
Replacement Systems We Install
TPO (Thermoplastic Polyolefin)
Reflective, energy-efficient single-ply membrane ideal for Los Angeles roofs. Resists UV damage and helps reduce cooling costs. Typical lifespan: 15–25 years.
EPDM Rubber Roofing
Highly durable, UV-resistant, and low-maintenance — performs well under intense sun and temperature swings. Typical lifespan: 20–30 years.
PVC Roofing Systems
Chemical and weather-resistant membrane ideal for restaurants, warehouses, and buildings with rooftop equipment. Typical lifespan: 20–30 years.
Modified Bitumen
Proven performance with modern polymers. Available in torch-down, cold adhesive, or self-adhering options with strong puncture resistance. Typical lifespan: 15–20 years.
Built-Up Roofing (BUR)
Multiple layers of bitumen and reinforcing fabrics creating a redundant waterproofing barrier. Extremely durable and fire-resistant. Typical lifespan: 15–30 years.
Metal Roofing Systems
Exceptional longevity and fire resistance. Reflects solar heat to lower cooling costs and withstands strong winds. Typical lifespan: 30–50+ years.
When to Contact Us
Roof problems rarely announce themselves — they grow quietly until they're expensive. If you're seeing any of the signs below, don't wait.
Why It Matters
What you get with California First Roofing
- Eliminates recurring leak and repair costs
- Upgraded insulation for better energy efficiency
- New manufacturer + workmanship warranties
- Increased property value and curb appeal
- Title 24 energy-compliant options available
- Improved structural protection for decades
Backed by
- Years
- 23
- Projects
- 1,000+
- Google rating
- 5.0 ★
- Reviews
- 247+
The Process
Our commercial replacement process
Every project follows the same supervised, transparent process — from first call to final walkthrough.
Free Inspection & Assessment
Comprehensive roof evaluation including membrane condition, drainage, structural integrity, and insulation performance.
Customized Replacement Plan
We recommend the best system for your building, budget, and energy goals — with itemized pricing and a clear timeline.
Preparation & Tear-Off
Old roofing system removed, decking inspected and repaired as needed. Work areas contained and organized.
Professional Installation
New system installed with upgraded insulation per manufacturer specs and California building codes. Minimal disruption to operations.
Final Inspection & Cleanup
Quality check, documentation, and full site cleanup. Nothing left behind but your new roof.
Ongoing Support & Maintenance
Manufacturer + workmanship warranties registered. Optional maintenance plans available for long-term performance.
“Every commercial replacementI sign off on is one I'd be proud to do on my own house.”
Where We Work
Serving all three California metros
Three California offices serving every major metro. Pick your city for area-specific details.
San Diego
9606 Tierra Grande St, San Diego, CA 92126
Mira Mesa · Carmel Valley · La Jolla · Chula Vista · El Cajon · Poway · Rancho Bernardo
Los Angeles
5850 W 3rd St, Ste E, Los Angeles, CA 90036
Hollywood · Santa Monica · Beverly Hills · Pasadena · Burbank · Culver City · Long Beach
San Jose
690 Saratoga Ave, Ste 100, San Jose, CA 95129
Santa Clara · Sunnyvale · Cupertino · Campbell · Mountain View · Los Gatos · Palo Alto
Related Services
Not sure commercial replacement is what you need?
Commercial Installation
Flat and low-slope systems engineered for warehouses, offices, retail, and multi-unit properties — installed code-compliant and on schedule.
Commercial Repair
Commercial leak fixes, membrane patches, and flashing repairs — diagnosed at the root cause, documented with photos, and completed by in-house crews.
Roof Coating
Extend your roof's life by 10-20 years and cut cooling costs without a full replacement.
Commercial Replacement FAQ
Commercial Replacement questions
Get Started
Request Your Free
Roof Inspection
A licensed inspector examines your roof and delivers a written report with photos. Most estimates back within 24 hours of the visit — no pressure, no obligation.
- Free inspection — no cost, no obligation
- Written estimate before any work begins
- In-house crews only — no subcontractors
- Licensed & insured (CSLB Lic# 1094851)
- Owens Corning Preferred Contractor
- Manufacturer + workmanship warranties