Top 10 Flat Roofing in Los Angeles, CA
The best flat roof contractors in Los Angeles, CA for 2026 include All In Roofing (5), Best Roofing LA (5), American Roofing CA LLC (5). All install and repair TPO, EPDM, modified bitumen, and built-up flat roofing systems.
All In Roofing
Costar Roofing Los Angeles
Bilt-Well Roofing
Budget Wise Roofing of Los Angeles
Best Rate Roofing of Los Angeles
Best Roofing LA
Flat Roofing Los Angeles
Benefit Roofing
Francisco's Roofing Inc.
American Roofing CA LLC
How We Ranked These Los Angeles Pros
Our rankings are based on a weighted evaluation of five key factors:
- Licensing & Insurance — All listed businesses hold active state licenses verified through official databases.
- Customer Reviews — We aggregate ratings from Google, Yelp, and the BBB, weighting recency and review volume.
- Response Time — Companies offering same-day or 24/7 emergency service score higher.
- Pricing Transparency — Businesses who offer flat-rate pricing or free estimates rank above those with opaque billing.
- Experience & Longevity — Years serving the Los Angeles market and breadth of services factor into overall reliability.
Rankings are reviewed quarterly. Have a correction? Contact us.
Frequently Asked Questions
How much does flat roofing cost in Los Angeles?
Flat roofing in Los Angeles costs $4-$10 per square foot installed. TPO: $5-$8/sq ft. EPDM: $4-$8/sq ft. Modified bitumen: $4-$7/sq ft. Built-up (BUR): $5-$9/sq ft. PVC: $6-$10/sq ft.
What is the best flat roof material?
TPO is the most popular — good balance of price, durability, and energy efficiency (white reflective surface). EPDM is proven and affordable. PVC is premium. Modified bitumen is great for DIY-friendly repairs. Choice depends on budget and climate.
How long does a flat roof last?
TPO: 20-30 years. EPDM: 25-30 years. PVC: 25-35 years. Modified bitumen: 15-20 years. Built-up: 20-30 years. Proper drainage and regular maintenance are critical — ponding water is the #1 killer of flat roofs.