Best TPO roofers in Houston: commercial installation & repair.

P91 Roofing installs and repairs TPO roofing for commercial buildings across Greater Houston, Spring, The Woodlands, and the surrounding areas. We handle flat and low-slope roofs — including TPO, PVC, and modified bitumen membranes — and you can reach us at (281) 948-2208 for a free inspection. Our office is in Spring, so we're working in this market every week, not driving in from another county.

TPO stands for thermoplastic polyolefin. It's a white or light-colored single-ply membrane that reflects heat instead of absorbing it, which matters on a Houston summer roof. The seams are heat-welded rather than glued, so a properly installed TPO roof forms one continuous watertight surface. That welded seam is the part that keeps water out — and the part a rushed crew gets wrong, which is why install quality decides how long the roof lasts.

The work starts with an on-site inspection, not a phone quote, because flat roofs hide their problems. We look at the existing membrane, the seams, the flashing around HVAC units and drains, and the decking underneath for soft spots or trapped moisture. For a repair, we find the actual source of the leak, which is often several feet from where water shows up inside. For a full replacement, we measure the roof and confirm what's under the old membrane before we quote a price.

• Tear off the old membrane and inspect the deck
• Replace any wet or damaged decking and insulation
• Lay down the insulation and cover board
• Roll out the TPO membrane and mechanically fasten or adhere it
• Heat-weld every seam so the roof becomes one sealed surface
• Flash all penetrations, curbs, and drains
• Run a live water test to confirm there are no leaks before we call it done

Timeline depends on the size and condition of the building. A small repair can be same-week work. A full commercial replacement runs longer, and we give you a written timeline the same day we inspect.

Commercial TPO pricing depends on square footage, the number of penetrations like HVAC curbs and drains, whether the deck needs repair, and whether it's a repair or a full tear-off and replacement. Because those variables swing the number so much, we price every building after we see it rather than quoting a rate over the phone. Financing is available, with rates and terms depending on the size and scope of the project. The inspection and written estimate are free either way.

P91 Roofing is a Spring-based roofing contractor working across the North Houston market, and the same people who run the company inspect the work — not just the crew. One local building owner had a previous contractor tear off and replace half a roof twice without getting it right; P91 came out and finished the job correctly. That follow-through is the difference between a membrane that lasts its full service life and one that starts leaking at the seams in a few years.

• Ask who welds the seams and whether they test them. Heat-welded seams are the whole ballgame on a TPO roof.
• Ask for the workmanship warranty in writing, separate from the manufacturer warranty.
• Ask whether they inspect the deck before quoting. A price that skips the decking check is a price that will change mid-job.

P91 Roofing serves commercial buildings across Greater Houston, including Spring, The Woodlands, Tomball, and the surrounding North Houston communities. Response times in this part of the metro are short. If your building is in the greater Houston area and you're not sure whether we cover it, call and ask — we'll tell you honestly rather than send a crew two counties away.