Owens Corning Roofing in Schertz, TX

Owens Corning Roofing in Schertz, TX | Mercer Roofing Co San Antonio

Our Roof Repair - Schertz service means independent repair and replacement work on Duration, TruDefinition, and Berkshire shingle roofs by crews who see this city’s hail damage every spring. We’re not an Owens Corning dealer and we don’t pretend to be. What we do is fix Owens Corning roofs the way Schertz actually demands, which often means re-nailing decking to Guadalupe County wind standards before a single new shingle goes on. Call (254) 276-4369 for a free estimate.

Call (254) 276-4369

Grant Whitlock leads our Roofing Company - Schertz crew. He learned roofing through the construction technology program at Los Angeles Trade-Technical College, then spent years applying that training on real roofs in hard weather before putting down roots here. Schertz homeowners get straight talk, written pricing, and a technician whose name and photo arrive before we do.

Why Schertz Residents Choose Us for Owens Corning Service

Schertz has a particular roof profile: steep-slope asphalt shingle on single-family homes, many of them built in the 1980s and 1990s with original Owens Corning product still nailed down. Those roofs have been through two decades of I-35 corridor hail, July heat, and the occasional March wind event that peels Starter Strip adhesive like old tape. We know what that does to a Duration shingle because we’ve torn off enough of them to fill a landfill.

Our Owens Corning sales & service experience spans the full line, but what matters more is the local knowledge. We know which Schertz subdivisions have original 90s Duration installations. We know Fairhaven sees more granule loss on south slopes than north slopes. And we know Guadalupe County code requires decking re-nailing during full replacements, which changes the scope and the price. Our 365-Day Done Right Promise backs every repair in writing. A live person answers the phone 24/7. And when our technician shows up, they’re background-checked, uniformed, and carrying a photo ID badge you can check at the door.

Common Owens Corning Roofing Problems We Solve in Schertz

• Granule loss on older Duration shingles after repeated hail impacts. Hail in Schertz doesn’t always punch through a shingle. Sometimes it just knocks the ceramic granules off, leaving bald patches that UV rays then bake into brittle spots. We see this constantly on 1990s and early-2000s Duration roofs, especially on south-facing slopes that catch the strongest sun after the storms. The fix is usually a full slope replacement, not a patch, because the remaining shingles are already compromised.
• Cracking and splitting at the nail line on original 1990s Owens Corning shingles. Schertz summers push roof surface temperatures past 140 degrees, and those old shingles expand and contract every day. After 25 years, the thermal cycling creates hairline cracks right where the nail sits. One more wind gust and the shingle tears through. We’ve replaced entire roofs where half the shingles failed at the nail line while the other half looked fine from the curb.
• Wind uplift at rake edges where Starter Strip adhesive has dried out. Steep-slope roofs in Schertz neighborhoods catch serious wind during spring storm fronts. The adhesive on original Starter Strip shingles degrades over time, and once it lets go, the rake edge shingles start lifting. Sometimes you’ll hear them slap during a storm. Left alone, water finds its way under the edge and into the decking.
• Leaks around vent boots where original Owens Corning pipe flashing has corroded. The rubber gasket on a pipe boot hardens after a decade in Texas heat, then cracks, and the metal collar rusts from the inside out. On many Schertz homes built in the 80s and 90s, the original flashing is still up there. When we tear off an old Owens Corning roof, we replace every vent boot as a matter of course, not as an upsell.
• Decking rot hidden under old shingles. The leak you don’t see for two years is the one that rots a sheet of plywood. In Schertz, where original roofs have been through decades of storms, we routinely find soft decking under Owens Corning shingles that looked passable from the street. Guadalupe County code requires re-nailing the deck anyway during a full replacement, so the rot gets caught before it spreads further.

Owens Corning Service in Schertz: What Local Conditions Mean for Your Roof

Here’s something that separates Schertz from San Antonio, even though the cities share a border: Guadalupe County building code requires roof decking to be re-nailed to current wind uplift standards during any full Owens Corning replacement. Bexar County doesn’t enforce that. So if you live in Schertz and your roofer quotes a replacement without mentioning decking re-nailing, they’re either unfamiliar with the local code or hoping you won’t find out. Our crews re-nail every sheet of decking on Schertz replacements, then inspect for rot, then lay down new underlayment and shingles. The advantage is real: roofs in Fairhaven and other Schertz neighborhoods hold up better in the next hailstorm, and your insurance adjuster sees a compliant installation, not a code miss. That’s the kind of thing that matters when the next claim gets filed.

Owens Corning Models & Products We Service in Schertz

We work on the full Owens Corning residential line: Duration Series, Duration FLEX, TruDefinition Duration, and Berkshire. Duration FLEX is the one we recommend most often for Schertz replacements because the SBS-modified asphalt handles hail impact better than standard Duration. For color matching on storm repairs, we default to genuine Owens Corning replacement shingles so the new section doesn’t wave at you from the curb. When the original underlayment or flashing is obsolete or a weak performer in hail zones, we use quality aftermarket components that outperform what was there. We stock common Duration colors locally for faster Schertz turnaround, which matters when a spring storm takes out half your south slope and you want it fixed before the next front rolls through.

Owens Corning Service Pricing in Schertz

FAQs – Owens Corning Roofing in Schertz

Service Areas Near Schertz

Our crews serve Schertz and the surrounding communities throughout the I-35 corridor. We handle Schertz service area roofing daily, and we also cover Owens Corning service in Cibolo, Owens Corning service in San Antonio, plus Kirby, Boerne, and Floresville. If you’re anywhere nearby, call and we’ll tell you if we can get there.

Book Your Owens Corning Service in Schertz Today

If your Owens Corning roof took hail, wind, or just plain age, call (254) 276-4369. We’ll send a written estimate before any work starts, and the technician who shows up will be the person whose name and photo you already have. A roof shouldn’t be something you worry about – that’s our job.

Written by Grant Whitlock, Owner at Mercer Roofing Co San Antonio, serving Schertz and the surrounding I-35 corridor since 2000.