Flat roofs leave no margin for installation error. Water follows gravity, and on a flat or low-slope roof it finds every weakness in the system: a seam that wasn't properly heat-welded, a flashing detail that's a quarter-inch short, a drain that wasn't set at the true low point. The roofing material itself is rarely the reason a flat roof fails. Installation quality is what determines whether the system holds up.
USA Home & Commercial has installed and repaired flat roof systems across San Antonio for 20+ years, working on TPO, EPDM, modified bitumen, and built-up roofing. Every project starts with substrate assessment, drainage analysis, and system selection based on the building's actual conditions rather than a default system applied to every job.
USA Home & Commercial holds GAF GoldElite™ Commercial Contractor status, one of GAF's top-tier commercial certifications. That status allows us to back qualifying flat roofing systems with the GAF Diamond Pledge™ NDL Roof Guarantee, covering materials and workmanship with no dollar limit for up to 25 years. That matters in Texas, where heat, UV exposure, ponding water risk, and storm activity work against a flat roof system every day. The right installation, backed by proper drainage and engineering documentation, means your property gets a high-performance system designed to last 20 to 30-plus years.
20+ years, 200+ five-star reviews, and residential and commercial credentials from leading manufacturers and industry programs.
From the Hill Country to the Gulf Coast corridor, residential and commercial roofing across Central Texas
