Roof Repair in Schertz for Aging Shingles and Everyday Leaks
Most Schertz roofs are not failing from one big storm. They are wearing out slowly from sun, wind and age, and that wear shows up in a few predictable places.
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Age is the main story in Schertz
Half of the homes in Schertz were built before 2002 (U.S. Census Bureau, American Community Survey 2020-2024). That puts many roofs at about 24 years old. If the original shingles are still up there, they have spent more than two decades in Texas sun, and heat dries asphalt shingles until they turn brittle.
Large hail has been less frequent here than in some nearby cities. NOAA's Storm Prediction Center logged 30 hail reports within 10 miles of Schertz from 2015 through 2024, and only 1 was 1.75 inches or larger: a 2-inch stone on April 12, 2016. Smaller hail and strong gusts still wear down a roof that is already old, so leaks here tend to come from age plus weather rather than one dramatic storm.
Where aging roofs leak
Pipe boots
The rubber collars around plumbing vents crack after years of sun and let water slide down the pipe.
Flashing
Metal at walls, chimneys and skylights loosens or rusts. See signs your roof flashing is failing.
Brittle shingles
Old shingles crack, curl and lose tabs in the wind. Read how Texas heat affects asphalt shingles.
Valleys
The channels between slopes carry the most water and wear first.
Ridge caps
The caps along the peak take the most sun and wind, and on older roofs they crack or blow off before the field shingles do.
Clues that it is time to call
A yellow or brown ring on a ceiling, even a small one.
Damp or flattened insulation in the attic.
Shingle pieces on the lawn after a windy day.
Heavy granules in the gutters or at the downspouts.
A leak that only shows in hard rain. Read why is my roof leaking only in heavy rain.
Paint peeling on the fascia near the roof edge.
How we approach a repair
Trace the water
We follow stains in the attic back to the real entry point, which is often several feet away.
Show you the damage
Photos of what failed and why, so you understand the repair.
Put it in writing
You get a free estimate with the scope before we schedule the work.
Repair to match
GemSco works on asphalt shingle, wood shake, metal, stone-coated, tile and low-slope roofs.
Confirm it held
After the next hard rain, check the same spot in the attic. Dry wood means the repair worked.
Repair now, plan for later
About 78 percent of occupied homes in Schertz are owner-occupied (U.S. Census Bureau, ACS 2020-2024). For most owners here, the smart path on a roof near 24 years old is to fix leaks as they appear while planning for replacement on their own timeline. Repairs on a sound roof can buy real time. On a roof that leaks in a new spot every season, the money may go further toward a new one.
Compare the two in roof repair vs. replacement, or look at roof replacement in Schertz. If water is coming in right now, start with emergency roof repair. More on our roof repair service and the Schertz roofing page.
Frequently Asked Questions
Is it worth repairing a roof that is over 20 years old?
It can be. If the leak comes from one failed part, like a pipe boot or a section of flashing, and the shingles are still flexible, a repair is reasonable. If shingles crack when touched or leaks appear in several places, it is time to price a replacement as well.
Why does my roof leak at the same spot again after a patch?
Usually the patch treated the stain, not the source. Water can enter at flashing or a vent and run along the decking before it drips. A repair that finds the real entry point lasts. A quick seal over the wrong spot does not.
Can you repair just a few shingles on an older roof?
Often, yes. Old shingles can be brittle, so the crew lifts the surrounding ones carefully to slide new pieces in. Color may not match exactly because older shingles fade. If the old ones break as they are handled, that is a sign the roof is near replacement.
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