Commercial Roof Repair in San Antonio, TX

A tenant calls about a brown ring on the ceiling tile above her desk. More often than not, the commercial roof repair in San Antonio that follows has nothing to do with the spot over that desk. It's at a penetration. Rooftop HVAC units, exhaust fans, vent stacks, conduit and gas lines all punch through the membrane, and water looks for every one of them. Texas-RRR fixes those leaks on TPO, modified bitumen and low-slope shingle roofs for building owners, property managers and HOA boards all over San Antonio. Our own commercial crews do the work, and the estimate is free.

Our old site said it like this: "Commercial roofing requires knowledge about various aspects such as external piping and air flow systems." Still true. Put a shingle-only roofer on a flat roof with six rooftop units and a mess of condensate lines, and he'll seal the wrong thing. We've watched it happen. The stain is over the desk, but the water came in forty feet away, at a curb where an HVAC tech stepped on the flashing last spring.

The failures we run into most on commercial roofs:

• HVAC curbs. Units vibrate and membranes shrink, so the flashing creeps away from the curb. Add a condensate line draining right onto the roof and one patch stays wet all summer.
• Pipe and conduit penetrations. Pitch pockets dry and crack, boots split, and somebody runs a new line through the deck without flashing it at all.
• Seams and laps. A cold weld on TPO opens. On mod-bit, the cap sheet lifts at the lap and water slides underneath.
• Drains and scuppers. Leaves, acorns, now and then a tennis ball. Water ponds and the membrane never dries out, and before long the deck under it is rotting.
• Edge metal and coping. Wind gets under it and the sealant lets go. Then the parapet soaks from the top down.

We repair the actual entry point. You'd think that goes without saying. It doesn't. Plenty of commercial roof repair around here is a bucket of mastic smeared over the wet spot, good for maybe one season. Doing it right means reflashing the curb or rebuilding the pitch pocket, welding or torching on a real patch, and pulling any cover board that got wet. Want to understand the systems themselves? Our flat roofing page goes deep on TPO and modified bitumen.

People underestimate what hail does to a commercial roof. Lay a thin single-ply membrane over rigid insulation and it has no give, so a two-inch stone cracks it instead of bouncing. Mod-bit fares better. Still, big hail bruises the cap sheet and knocks granules off, and once they're gone the asphalt weathers quickly. Neither kind of damage shows up from the parking lot. Get on the roof with a chalk marker, though, and it jumps out.

San Antonio's history with hail isn't short. On April 12, 2016, a storm dropped hail up to 4.5 inches in Helotes, and at the time it was the costliest hail event in Texas history. Then came late April 2021: a Texas-record 6.4-inch stone in Hondo, and baseball-size hail across the middle of the city along I-10 toward Seguin. Lots of warehouses, strip centers and apartment buildings hit in those two storms are still sitting under roofs that got patched and never properly looked at.

If your building or community took a hit, we'll handle it end to end. Former insurance adjusters are part of our in-house staff, and the company puts 30+ years of insurance claim experience into every file. We document the roof, meet your carrier's adjuster on it, check the scope they write line by line, and file a supplemental report when the first number comes in short. Our insurance claims page walks through all six steps. Apartment complexes and HOA facilities get board-ready proposals from our multi-family and HOA roofing crew. And if you're curious how we read storm damage, have a look at hail damage roof repair.

Start with a call to (210) 802-6906 or a few photos. If it's actively leaking, a crew heads out as soon as one frees up, and if the weather cooperates they'll tarp the worst of it. We won't promise you around-the-clock response, because we don't offer it. Next comes the roof walk, preferably with you or your property manager along. Every penetration, every bad seam and every spot that holds water gets photographed, and you get a written scope. It splits the repairs that have to happen now from the items you can budget for next quarter. Anyone running a building needs that split. Most contractors leave it out, in our experience, since a longer list is easier to upsell.

Usually the repair takes a day. Bigger roofs with several curbs to rebuild can run two. Crews work around your tenants: materials get staged so the loading dock stays open, the roof hatch stays clear, and when we're done you get photos of every repair for your files and your carrier. Some of those crews have been side by side with us for over 20 years. So the people who walked your roof are the people who fix it.

Plenty of leaking commercial roofs don't need replacing, and we'll tell you when yours is one of them. Take a ten-year-old TPO roof with one bad curb and a clogged drain. That's a repair. Patch it, and be suspicious of anybody pushing a tear-off on that roof, because they're selling. It's a different story when the problems are everywhere: alligator cracking all over a mod-bit field, seams opening in a dozen spots, insulation so saturated it squishes when you walk on it, or a roof three contractors have patched over fifteen years. By then each repair buys less time than the one before, and your money does more on commercial roof replacement, either a full tear-off or a recover over the existing deck. You'll get both options in writing. The decision's yours.

Whichever way it goes, one company does the work. Texas-RRR is veteran owned, registered and insured, and our eight full crew teams have 2,800+ projects completed. Everything we do for San Antonio buildings, from new membranes to HOA pool facilities and rec centers, is on our commercial roofing page. For shingled and sloped commercial work, we prefer Owens Corning and GAF.