Commercial Flat Roofing
Expert installation of all commercial flat roof systems — TPO, PVC, EPDM, and modified bitumen — by C-39 certified crews.
Flat Roofing Done Right in LA
Flat and low-slope roofing dominates commercial construction in Los Angeles — offices, warehouses, retail centers, apartment buildings, and industrial facilities all rely on flat roof systems. LA's climate presents specific challenges: intense UV radiation year-round, significant thermal cycling between hot days and cool nights, and the occasional concentrated rainfall event that tests drainage design. We engineer and install flat roofing systems that handle all of it.
- Free inspection with written system recommendation before any commitment
- All systems installed with tapered insulation for positive drainage
- Energy-code compliant insulation R-values on all new installations
- All permits and final city inspections included in our scope
200+
Flat Roof Installs
TPO, PVC, EPDM, Mod-Bit
System Types
15–20yr
Average Warranty
The Right System for Your Building
There is no universal best flat roofing system — the right choice depends on your building's use, substrate, existing conditions, drainage design, budget, and performance requirements. We evaluate all of these factors during our free inspection and recommend the system that delivers the best long-term value for your specific situation.
El-Lay Construction
Pasadena, CA · CSLB Licensed · Bonded & Insured
Flat Roofing Systems We Install
TPO Membrane Roofing
Heat-welded thermoplastic — the most popular commercial flat roof system for its energy efficiency, UV reflectance, and proven 15–25 year performance record.
PVC Membrane Roofing
Chemical-resistant single-ply for restaurants, manufacturing, and healthcare — the only appropriate specification when grease or chemical exposure is present.
EPDM Rubber Membrane
Proven synthetic rubber with exceptional flexibility and temperature resistance — the most cost-effective flat roof system for large commercial and industrial buildings.
Modified Bitumen
Two-ply modified asphalt systems — torch-applied, heat-welded, or cold-applied — for commercial reroofing where compatibility with existing asphalt systems is required.
Get Your Flat Roof Estimated
Free inspection and system recommendation. No pressure, no obligation — just an honest assessment.
Get In Touch
Phone
(323) 505-8782Service Area
Pasadena · Los Angeles · LA County
Response Time
Inspections available Mon–Sat
★ CSLB Licensed · Bonded & Insured · Est. 2004