Your Local Roofer
in Diamond Bar
Diamond Bar's hillside neighborhoods and mix of 1980s-90s construction means many homes are approaching their first full roof replacement cycle. GAX Roofing serves Diamond Bar homeowners with licensed C39 roofing work, free estimates, and a crew that shows up and delivers.
For Diamond Bar homeowners going with a shingle roof: Owens Corning manufactures shingles out of a plant in Compton, CA, right in Los Angeles County. That means shorter supply chain, faster material availability, and you're supporting a product made locally. Owens Corning is one of the most widely specified shingle brands in the country, and their Duration and TruDefinition lines carry a strong warranty. When we install shingles in Diamond Bar, it's one of our go-to options.
We're a family-owned C39 licensed roofing contractor based in Rancho Cucamonga. Our team handles every estimate and project-manages every job from start to finish. You always have a direct line to us with any question, before, during, or after the work is done. Free in-home estimates. There's a pitch, but we're not going to sit at your house for three hours and grind you down.
Roofing Services in Diamond Bar
- Roof Replacement, full tear-off and install, all roof types
- Roof Repairs, leaks, storm damage, flashing, missing shingles
- Asphalt Shingle Roofing, installations built for SoCal heat
- Tile Roofing, concrete and clay tile, lift-and-relay, repairs
- Flat Roofs, TPO, PVC, EPDM, modified bitumen
- Residential Roofing, full-service, one crew, one point of contact
Why Diamond Bar Homeowners Choose GAX Roofing
- C39 licensed and fully insured, never hire an unlicensed roofer
- Every estimate and every job run by an owner, start to finish
- We pull permits and handle city inspections
- Straight answers, we don't upsell replacements when repairs will do
- 5.0 stars on Google across dozens of reviews
- Bilingual crew, se habla Espanol
- Free in-home estimates, no obligation
Frequently Asked Questions
Yes. GAX Roofing serves Diamond Bar and surrounding areas in Los Angeles County. We come to you for a free in-home estimate, call (909) 819-8394 to schedule.
Yes. GAX Roofing holds a California C39 Roofing Contractor license (#1135657) which covers all of California including Diamond Bar. We're fully insured and pull permits on every job that requires one.
Most residential roof replacements in Southern California range from $11,000 to $20,000+ depending on size, roof type, and condition. We provide a detailed written estimate at no charge after walking the roof with you.
Typically within 1-3 business days. For active leaks or urgent situations call us directly at (909) 819-8394 and we'll do our best to get out sooner.