Commercial Roof Repair
A leak in a commercial building costs more every day it stays open. GemSco finds where the water is really coming in, shows you with photos, and repairs it with the least disruption to your operation.
Schedule Your Roofing Inspection Today
Fill out the information below and we’ll reach out to complete your estimate as soon as possible!
When a tenant or employee reports a leak
Move inventory, equipment and files away from the drip and protect them with plastic.
Keep people away from wet floors and any sagging ceiling tiles.
Turn off power to fixtures near the water if it is safe to do so.
Note the time, the location in the building and the weather when it started.
Take photos and video of the leak and of any damaged goods.
Call (844) 980-5506 and describe what you see. Keep everyone off the roof.
Why commercial leaks are hard to trace
On a low-slope roof, water rarely drops straight down from the opening. It can run under the membrane, along the deck or through insulation before it finds a seam in the ceiling. A stain above aisle six may start at an HVAC curb thirty feet away. Patching above the stain usually wastes money and leaves the real opening in place.
That is why every repair starts with finding the source. We check seams, flashing at walls and edges, curbs, pipe penetrations, drains and scuppers, and we look for areas where the roof feels soft or holds water. Our flat roof repair page covers the most common failure points on low-slope roofs.
Rooftop traffic adds to the list. HVAC technicians, satellite installers and other trades walk the roof, drop screws and cut new penetrations, and nobody always seals them afterward. A repair visit is a good moment to note those spots before they leak.
Repairs we handle on commercial roofs
Seams and laps
Re-sealing or patching membrane seams that opened from heat, movement or age.
Flashing
Repairs at parapet walls, roof edges, curbs and penetrations, where most commercial leaks start.
Drains and scuppers
Clearing and repairing drains so water leaves the roof instead of ponding.
Punctures and storm damage
Holes from hail, fallen debris or foot traffic around rooftop equipment. See roof storm damage.
Wet sections
Replacing small areas of saturated insulation and membrane so the moisture does not spread.
Metal roof details
Fasteners, washers, trim and sealant on metal buildings. See metal roofing.
How a GemSco commercial repair works
Inspection
We inspect the roof around the reported leak and the surrounding areas, plus the interior where there is access.
Photos
You get photos of the source and of any other problems found, so owners and managers see the same evidence.
Written estimate
A written estimate for the repair, separating what is urgent from what can be planned.
Scheduled work
We schedule the repair around your hours, deliveries and site access.
Cleanup
We clean the roof and the work area, including debris near entrances and parking.
When repair stops making sense
Repairs are the right answer while the roof system is mostly sound. Warning signs that you are paying to delay a replacement: leaks in new places every season, seams failing across the roof, ponding over large areas, or wet insulation found in several spots. At that point each repair buys less time.
We tell you when we see that pattern, with photos to back it up. Our commercial roof replacement page explains how to plan a new roof as a project rather than an emergency, and commercial roofing gives the full overview of what we do for businesses.
Commercial roof repair across Texas
GemSco is family owned, fully licensed and insured, with more than 20 years of experience. We repair low-slope, metal and pitched commercial roofs in Houston, DFW, Austin, San Antonio and surrounding areas, including Houston and San Antonio. Estimates are free.
Frequently Asked Questions
Can you repair our roof without closing the business?
Most commercial repairs can be done while the building stays open. We plan access, material staging and noisy work around your schedule, and keep work areas clear of entrances and customer paths. If a repair needs a short interruption, such as disconnecting rooftop equipment, we tell you ahead of time.
Why does the same area keep leaking after repairs?
Usually because the patch went over the stain instead of the source. Water on a low-slope roof travels before it drips, so the opening can be at a seam, curb or wall flashing some distance away. A proper inspection traces that path before anything is repaired.
Will you send photos we can share with the owner or tenant?
Yes. Every inspection includes photos of what we found, and the written estimate describes the recommended repair. Property managers often forward both to owners or tenants so everyone decides with the same information, without needing to go up on the roof themselves.
Is storm damage on a commercial roof handled differently?
The repair work is similar, but documentation matters more. If you plan to file with your insurance company, coverage depends on the policy and on the insurer's decision. We inspect, photograph the damage and provide a written estimate. Our insurance claims page explains the general process.
We’re Here to Help!
GemSco Roofing & Solar serves Houston, DFW, Austin, San Antonio and surrounding areas. We’re family owned and fully licensed and insured.