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 Windcrest
Roof installation in Windcrest typically runs $9,800 to $18,600 for a full tear-off and re-roof on the ranch homes that dominate this city, with most jobs completed in one to three days once materials are staged. That’s the direct answer. What drives the spread is what we find under the old shingles, because Windcrest’s original 1960s homes hide things newer subdivisions don’t. Our crews know exactly what to expect when they pull back three-tab on a low-slope hip roof off Midcrown or Crestway: decking that hasn’t met current uplift code in decades, flashing that gave up years ago, and rafter tails swollen from patio-cover tie-ins that were never detailed right. Call (254) 276-4369 and we’ll send a real person to your door with a written price before any work starts.
Why Mercer Roofing Co San Antonio Is Windcrest’s Preferred Roof Installation Company
Windcrest homeowners don’t want a stranger on their roof. They want to know who’s coming, what it’ll cost, and that the price on paper is the price they’ll pay. That’s the exact problem Mercer Roofing solves. Before any technician sets foot on a Windcrest driveway, you get their name and photo sent to your phone. When they arrive, they’re in a clean, marked uniform with a photo ID badge. Background-checked. Identity-verified. Held to the Threshold Verified standard that every Mercer location operates under.
We’re part of the Threshold Group family, founded in 2000, and we serve Windcrest with local crews coordinated through our San Antonio office. We don’t claim to have been born in Windcrest because that wouldn’t be honest. What we do claim is that we understand these roofs. The 1960s ranch stock, the low-slope hips, the patio cover additions, the hail that tracks up the I-35 corridor. That knowledge only comes from doing the work here, block by block, storm after storm.
And we back it with terms that matter. Every roof installation includes a written price before work begins. Every repair carries a written guarantee, and if a repair fails within a year, the second visit is free. We call it the 365-Day Done Right Promise. If it’s not done right, we make it right. No fine print gymnastics.
Grant Whitlock leads this location, and he holds every job to one standard: the homeowner knows exactly who’s on their property and exactly what they’re paying before a single nail is driven.
Styles & brands we work with
Roof Flashing Installation in Windcrest
Roof Flashing Installation in Windcrest is the most underrated part of any re-roof, and on these 1960s ranches it’s usually the difference between a roof that lasts 25 years and one that leaks through the soffit by the third summer. Flashing is the metal material that directs water away from the joints where your roof meets a wall, a chimney, a vent pipe, or a patio cover. When it fails, wind-driven rain gets under the shingles and works into places you can’t see from the ground. In Windcrest, the most common failure we fix is at patio cover tie-ins, where the original installer ran a strip of galvanized flashing, caulked it once, and called it done.
Patio Cover and Adjoining-Wall Flashing
The ranch additions on homes along Midcrown Drive and surrounding blocks need proper step flashing, counter-flashing, and a kickout detail at the bottom edge where the patio roof meets the main hip. We cut and bend metal on-site to match the actual angle, because no two of these additions were framed identically. The old corrugated patio panels get replaced or re-tied with new trim and closure strips so the entire assembly drains as one.
What New Flashing Costs Here
For a typical Windcrest ranch, full flashing replacement during a re-roof runs $1,100 to $2,800 depending on how many penetrations and tie-ins the house has. A standalone flashing repair on a patio cover junction usually lands between $450 and $900. The written quote you get before we start includes the flashing scope line by line, so you know exactly what metal is being replaced and why.
TPO Roofing Installation in Windcrest
TPO Roofing Installation in Windcrest is the right call for those low-slope sections and flat patio covers that pitch too shallow for shingles to shed water properly. TPO stands for thermoplastic polyolefin, a single-ply white membrane that gets heat-welded at the seams. It reflects heat instead of absorbing it, which means a cooler attic in a Windcrest August and lower strain on your AC during the stretch from June through September. The welded seams are stronger than adhesive-based systems, and they handle ponding water far better than shingle-over-low-slope ever could.
Why We Recommend TPO on Low-Slope Ranches
Windcrest’s original ranches often have hip roofs with a pitch so low that composition shingles trap water instead of shedding it. That trapped moisture rots decking from below, and the shingles on top hide the damage until a tear-off reveals it. We recommend TPO on any section under a 3:12 pitch. The membrane goes over a new or re-nailed deck, with high-temp synthetic underlayment beneath, and the seams are hot-air welded rather than glued.
TPO Pricing in Windcrest
A TPO membrane replacement on a patio cover or low-slope section of a Windcrest home typically runs $4,200 to $8,900, depending on square footage, insulation board condition, and how much edge metal needs rework. For a full flat-roof portion tied to a re-roof of the main house, expect the TPO portion to add $3,800 to $7,500 to the total. We write it as a separate line item so you see exactly what that membrane costs.
Trusted Brands We Service in Windcrest
We install and repair shingle brands that actually show up on Windcrest homes: GAF, CertainTeed, and Owens Corning get specified most often on these ranches, and we also work with Boral when a homeowner wants a tile or stone-coated profile. That matters because matching a 1960s three-tab silhouette with today’s impact-rated architectural shingle takes a manufacturer who still makes the profile, and CertainTeed’s Landmark line and GAF’s Timberline both do it well. We stock the common colors and starter materials locally so a Windcrest job doesn’t stall waiting on a truck from Dallas. When you call us, the quote names the exact shingle brand, profile, color, and warranty level we’re proposing, not just “architectural shingle” as a placeholder.
See the difference
Before
After
Before
After
Before
AfterCommon Roof Installation Problems We See in Windcrest Homes
- Hidden decking rot under original composition shingles. The low-slope sections on these 1960s ranches trap water under the original three-tab. By the time we strip the roof, the top layer of plywood has turned spongy and has to come out before new architectural shingles go down.
- Flashing failures at patio cover tie-ins. Windcrest has a high percentage of homes with patio covers added after the original build. The old flashings were under-detailed from the start, and decades of I-35 corridor wind-driven rain have pushed water into the soffit and rafter tails.
- Unvented ridge boards causing premature shingle wear. Original 1960s ranches here often have box vents with no ridge vent. Heat and moisture collect in the attic, cook the shingles from underneath, and the new architectural shingles start losing granules within a few summers if we don’t address the ventilation while the roof is open.
- Worn starter strip and drip edge at the eaves. Hailstorms along the I-35 corridor beat the edge metal and starter course repeatedly. If the starter strip and drip edge aren’t replaced when the roof is, the new shingles are vulnerable at the exact point where wind-driven water enters first.
Pricing for Roof Installation in Windcrest, TX
A full tear-off and re-roof on a typical Windcrest ranch runs $9,800 to $18,600. The spread comes from three things: roof size, the condition of the decking underneath, and the number of patio cover tie-ins and penetrations that need re-flashing. Simple two-plane ranch with a clean deck sits at the lower end. Low-slope hip with a patio cover addition, original 3/8-inch decking that needs sections replaced, and a chimney or two sits at the higher end. We don’t quote over the phone without seeing the roof, because doing so would be giving you a number we couldn’t stand behind. What we do is put a written price in your hand before any work starts. Call (254) 276-4369 to schedule your free estimate.
We Also Serve Cities Near Windcrest
Beyond Windcrest, our crews handle roof work across the northeast San Antonio metro. We regularly serve Roof Installation needs in San Antonio, Schertz, Cibolo, and Boerne, and we apply the same written-price and photo-ID standard on every job in every one of those cities. If you’re in Windcrest or one of its neighboring municipalities, the process and the promise don’t change. Read more about how we approach Roof Installation in Windcrest throughout this site.
Serving Windcrest, TX - Our Local Coverage Area
We’re based in the Windcrest 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 Windcrest
Windcrest follows Bexar County building standards, which require roof decking to meet current fastener spacing and uplift resistance before new shingles are installed. Original 3/8-inch plywood from the 1960s rarely meets those standards, especially after decades of hail bruising and moisture exposure. If we find decking that fails inspection, we replace the affected sections and document everything in writing with photos before any new material goes down. You approve the change before we touch it. Call (254) 276-4369 to schedule a roof inspection and get a clear picture of what your re-roof will actually require.
We switch material systems on those sections. If the hip roof pitch is under 3:12, shingles are a liability no matter how well they’re installed. We recommend TPO membrane on those low-slope areas, with high-temp synthetic underlayment beneath the membrane and all seams hot-air welded. On the steeper sections, we run architectural shingles with proper starter strip, drip edge, and ice-and-water shield at the eaves. The transition between the TPO and the shingle system gets a metal break detail so water never tracks sideways under the shingle edge. Call (254) 276-4369 for an exact breakdown of what your roof’s low-slope sections need.
We install step flashing at the joint, counter-flashing at the head wall, and a kickout diverter at the low end so water never runs behind the gutter or fascia. The patio cover roof gets its own underlayment and the edge receives a custom metal break that carries water off the assembly rather than into the soffit. None of this is off-the-shelf: every tie-in on a Windcrest ranch has a slightly different angle, so we cut and bend the metal on-site. The cost is part of your written quote before work starts. Call (254) 276-4369 if you’re looking at a porch ceiling stain that suggests water is already working its way in.
Yes, in most cases. CertainTeed and Owens Corning both make impact-rated shingle profiles that read as a substantial, low-profile architectural style close to the original three-tab silhouette without the fragility. You won’t get the exact narrow three-tab look, because three-tabs are manufactured with less material and don’t meet today’s impact standards. But you can get a clean, period-appropriate profile that suits a mid-century ranch and carries a Class 4 impact rating from the manufacturer. We’ll show you physical samples and photos of completed Windcrest jobs before you choose. Call (254) 276-4369 and tell us your home’s street, and we’ll bring the right samples to the estimate.
Because box vents alone don’t create enough airflow across the low-slope hip roof sections so common on Windcrest ranches. Without ridge venting, hot air pools under the sheathing, granule loss accelerates, and the new architectural shingles age prematurely. We cut a slot at the ridge, install the vent, and balance the intake with proper soffit vents before the new shingles go down. It adds a few hundred dollars to the job and extends the life of the roof measurably. The ridge vent line item is listed in your written quote, not slipped in later. Call (254) 276-4369 to have your attic ventilation assessed as part of your free roof estimate.
Written by Grant Whitlock, Owner at Mercer Roofing Co San Antonio, serving Windcrest since our founding with every job backed by the Threshold Verified standard and the 365-Day Done Right Promise.