Commercial Roofing

Our Services

Commercial Roofing Done Right

Your business can't afford downtime. TopCal Roofing specializes in commercial roofing systems that protect your building, minimize disruption, and provide long-term value.

Commercial Systems We Install:

🏢 TPO (Thermoplastic Polyolefin) membrane
🏢 Modified bitumen systems
🏢 Built-up roofing (BUR)
🏢 EPDM rubber roofing
🏢 Metal roofing
🏢 Foam roofing systems
🏢 Commercial roof coatings
🏢 Preventive maintenance programs

We work with building owners, property managers, and HOAs. All commercial work complies with LA County building codes.

📞 Call for Free Estimate 📋 Request Inspection

Get Your Free Inspection

🔒 We'll respond within 2 hours — No obligation, 100% free

Our Process

How We Work

1

Free Inspection

We assess your roof and provide an honest evaluation at no cost.

2

Detailed Estimate

You receive a transparent, itemized estimate with no hidden fees.

3

Expert Installation

Our certified crew completes the work efficiently and cleanly.

4

Your Satisfaction

We walk through the work with you and ensure you're 100% satisfied.

What Clients Say

Real Reviews from Real Homeowners

Don't just take our word for it — hear from the hundreds of LA County homeowners who trust TopCal

★★★★★

"TopCal Roofing replaced our entire roof in just 2 days. The crew was professional, clean, and the quality is outstanding. I highly recommend them to anyone in Pasadena!"

L

Lisa M.

Pasadena, CA

★★★★★

"After the storm damaged our roof, TopCal came out the same day, assessed everything, and handled our insurance claim from start to finish. Incredible service and great people."

D

Daniel R.

Whittier, CA

★★★★★

"From the initial inspection to the final cleanup, TopCal was professional all the way. Our new roof looks amazing and the price was very fair. 10/10!"

J

Jessica A.

Glendora, CA

Read All Reviews ›