Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Fast, Reliable Roof Installation Across Schertz
Roof installation in Schertz runs anywhere from $8,500 to $22,000 for a typical single-family home, depending on square footage, shingle grade, decking condition, and whether you’re in an older Fairhaven home from the 1980s or a newer build in Belmont Park. Most full tear-off and replacement jobs in Schertz take two to four working days once materials land. If you’re calling around for quotes, know this before you dial: a written price should be in your hand before any work starts, and the technician who shows up should have already sent you their name and photo. That’s how we operate at Mercer Roofing Co San Antonio. Call (254) 276-4369 and a live person answers, day or night.
Schertz isn’t a side trip for us. Our crews run Cibolo, San Antonio, Bulverde, Floresville, and every neighborhood in between out of our San Antonio dispatch office, and we know I-35 traffic patterns well enough to schedule arrivals you can actually plan around. When you call, we’ll tell you when we can be there, who’s coming, and what to expect before you open the door.
Why Mercer Roofing Co San Antonio Is Schertz’s Preferred Roof Installation Company
Homeowners in Schertz tend to ask the same three questions when we walk a roof with them. Does the quote actually match the final invoice? Will the crew respect the house? And will the roof be installed to a standard an insurance adjuster can’t poke holes in? We answer all three the same way every time: a written price before work begins, background-checked and photo-badged technicians who identify themselves at the door, and a documented installation that meets Schertz’s specific wind-load requirements.
We’re part of the Threshold Group family, founded in 2000, and every Mercer location is independently owned and operated. What ties them together is the Threshold Verified standard: every technician is background-checked, identity-verified, and arrives in a clean, marked uniform with a photo ID badge. You’ll get the person’s name and photo before they arrive. For older homeowners, parents home alone with kids, and anyone who simply doesn’t want a stranger at the door without proof of who they are, that badge is the whole point of calling us.
Grant Whitlock leads our roofing team, and he’s the first to say that a roof is only as good as the nailing pattern underneath it. Schertz sits in a hail corridor, and the difference between a roof that lasts 25 years and one that fails in 12 has less to do with the shingle brand than with how it was fastened. We install to the manufacturer’s high-wind specification, not just whatever gets the job done faster.
Styles & brands we work with






Shingle Roof in Schertz
A shingle roof is what most Schertz homes were built with, and it’s what most homeowners replace with. The housing stock here tells the story: single-family detached homes with steep-slope roofs, many of them built in the 1980s and 1990s. Those original composition shingles are now two to three decades old, and in a hail-prone stretch of the I-35 corridor, that means granule loss, lifted tabs, and the kind of wind-driven rain damage that shows up as water stains on ceilings months after a storm. A full shingle roof installation in Schertz typically runs $8,500 to $16,000, with architectural shingles at the higher end and better wind ratings than three-tab.
The Wind-Rated Installation
Schertz building codes require roofing that stands up to the severe thunderstorms that roll through central Texas. When we install GAF Timberline HDZ or similar architectural shingles, we follow the manufacturer’s high-wind nailing pattern: six nails per shingle in the correct position, not four. That’s what earns the 130 mph wind uplift rating. A cheap quote often skips this step because it’s slower, and the homeowner never knows until a storm finds the weak spot.
Decking and Underlayment
Under every shingle roof in Schertz, there’s decking, and under that, underlayment. We tear off to bare decking on every full replacement. If the plywood or OSB has rotted or delaminated, we replace those sheets before laying synthetic underlayment and ice and water shield at the eaves, valleys, and around any plumbing penetration. Skipping the peel-and-stick membrane at the eaves doesn’t save you real money; it just moves the cost into a future ceiling repair after the next wind-driven storm.
Standing Seam Metal Roof in Schertz
A standing seam metal roof in Schertz costs $14,000 to $22,000 on a typical single-family home, and it’s worth understanding what that buys you. The panels run vertically from ridge to eave with concealed fasteners, which means no exposed screws to back out over time. In a hail zone, that matters. Metal doesn’t granule-shed the way asphalt does, and standing seam systems tested to UL’s impact standards can shrug off hail that would total a shingle roof. For homeowners planning to stay put for 20 or more years, the higher upfront cost replaces two shingle cycles.
Why Schertz Homeowners Choose Metal
The newer subdivisions in Schertz, including homes around Belmont Park, have architectural styles where standing seam fits cleanly, especially on front-facing roof planes and porches. But the real driver is wind and hail. Documented installation with concealed clips and the right panel gauge carries a wind rating that insurance underwriters recognize. We’ll put the product specs and installation standard in writing before the first panel goes up.
What the Quote Should Include
A compliant standing seam quote includes tear-off of the old roof, underlayment rated for high temperature, panel gauge and rib height, clip spacing, and flashing at every penetration, valley, and transition. It also includes the permit line item. In Schertz, the inspector checks the fastening schedule on the permit inspection, and we don’t want a single panel installed in a way we can’t defend in front of that inspector or an insurance adjuster.
Trusted Brands We Service in Schertz
We install and repair roofs using manufacturer-recognized shingle brands including GAF, Owens Corning, and IKO, plus Atlas and Tamko when a homeowner has a specific color or profile match. Because we run Schertz jobs every week, our suppliers in the San Antonio area stock the colors and profiles common to Schertz subdivisions, so we’re not waiting on a freight order when you’ve already pulled the trigger on a replacement. If you’re matching an existing roof on a partial replacement, we’ll hunt down the discontinued color before we tell you it’s not available. Most of the time, it’s on a shelf within an hour of Schertz.
See the difference
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After
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After
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AfterCommon Roof Installation Problems We See in Schertz Homes
- Skipped ice and water shield at eaves and valleys. Schertz doesn’t get ice often, but wind-driven rain during spring and fall severe thunderstorms pushes water up under shingles at the eaves. Without peel-and-stick membrane, that water finds the decking. We install it on every roof, not just the ones where code strictly demands it.
- Reroofing over old decking without pulling a permit. If nobody pulls a permit, the city inspector never verifies the nailing pattern, and your manufacturer’s wind warranty becomes a piece of paper with no teeth. We pull permits on every full replacement in Schertz, and our techs carry the permit number in the job file they’ll walk you through after installation.
- Three-tab shingles on steep-slope roofs. On a 8/12 pitch roof in a newer subdivision like Belmont Park, three-tab shingles are more likely to blow off in high gusts. Architectural shingles installed to the manufacturer’s high-wind spec carry the 130 mph rating. The material difference is a few hundred dollars on most Schertz roofs and buys you a roof that actually stays put.
- Ignoring granule loss and lifted shingles after a hail event. Hail won’t always puncture a roof. Often it knocks granules loose and breaks the seal strip, which shortens the roof’s life and lets wind get under the tabs. If you can see granule piles in the gutters after a Schertz storm, the clock is already running.
Pricing for Roof Installation in Schertz, TX
A full tear-off and architectural shingle re-roof in Schertz runs $8,500 to $16,000 for most single-family homes. Standing seam metal comes in at $14,000 to $22,000. The main cost drivers are roof squares (a typical Schertz single-family roof is 25 to 35 squares), decking replacement, underlayment choice, and whether we’re dealing with patio covers, dormers, or steep pitches that slow the crew down. Every Mercer quote is a written, line-item price delivered before work starts. No work begins without that number in your hand. Call (254) 276-4369 and we’ll schedule a free estimate, walk the roof with you, and give you a price that won’t change when the invoice shows up.
We Also Serve Cities Near Schertz
Our crews run Schertz jobs every week, and the same Threshold Verified technicians work Cibolo, San Antonio, Bulverde, and Floresville. If you’re in one of those cities and need a roof installed to the same wind-rated standard we build into every Schertz roof, the phone number is the same. Ask for Grant’s team and we’ll get a Roof Installation specialist out to walk the property with you.
Serving Schertz, TX - Our Local Coverage Area
We’re based in the Schertz area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Roof Installation in Schertz
Yes, the City of Schertz requires a building permit for a full roof replacement, and the inspector does verify the nailing pattern as part of the inspection. We pull the permit on every full replacement, and the installation follows the manufacturer’s written high-wind nailing instructions so the inspector sees exactly what the code requires. The permit also protects you later: without an inspection, your manufacturer’s wind warranty isn’t defensible, and an insurance adjuster after a hail claim will ask for the documentation. Call (254) 276-4369 for a quote that includes the permit, the inspection, and the documentation.
A documented 130 mph wind-rated installation can qualify you for a wind mitigation discount with many Texas insurers, but not always, and the discount depends on your carrier, your policy, and whether you can show the documentation. What it always does is strengthen your position after a claim: if your roof was installed to spec and the adjuster can verify it, you’re not arguing about installation quality when the hail hits. We’ll hand you the installation documentation, the permit record, and the shingle specs in one packet. Call (254) 276-4369 for a free estimate and we’ll tell you what’s realistic for your policy.
Most Schertz single-family homes have roofs between 25 and 35 squares, where one square is 100 square feet of roof area. The square count is the single biggest driver of your quote because it determines how much shingle, underlayment, and labor the job takes. But it’s not the only number that matters: a 30-square roof with three layers of old shingle, rotted decking, and a 10/12 pitch costs more per square than a 30-square roof with one clean tear-off layer on a gentle slope. We’ll measure the actual roof with you, not an aerial photo from a call center. Call (254) 276-4369 for a free, on-site estimate.
Schedule the inspection as soon as it’s safe to walk the roof, and before you file a claim, because the insurance adjuster will want a documented assessment of the damage, not just a guess. Hail damage in Schertz often looks mild from the ground: granule loss, bruised shingles, broken seal strips. Those don’t leak the first week, but they shorten the roof’s lifespan and can lead to wind blow-offs months later. We’ll document what we find with photos and measurements you can hand directly to your adjuster. Call (254) 276-4369 and we’ll get a technician out to Schertz within a day or two.
Yes, you need ice and water shield at the eaves, valleys, and around penetrations even in Schertz, and it’s not about ice. In the I-35 corridor, severe thunderstorms push wind-driven rain up under shingle edges, especially at the eaves where water running off the roof meets the wind. Ice and water shield is a peel-and-stick membrane that seals around the nails and keeps that water out of the decking. We install it on every roof, not as an upgrade, and it’s included in the written price. Call (254) 276-4369 for an exact quote, and ask any roofer you’re comparing us against whether their price includes it.
Written by Grant Whitlock, owner at Mercer Roofing Co San Antonio, serving Schertz and the surrounding communities with wind-rated roof installation and documented compliance since 2000.