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
Boral Shingle Repair: The San Antonio Owner’s Guide
Boral shingle repair in San Antonio typically runs $450 to $1,200 installed depending on how many shingles failed and whether the underlayment beneath them needs attention. We stock Boral-compatible materials on our trucks and can usually complete a standard repair in a single visit. Most San Antonio homeowners discover a problem after a spring hailstorm or a windy stretch in March and April, when they spot shingle granules collecting in their gutters or a dark patch on the roof that wasn’t there before. Sometimes it’s a cracked shingle visible from the driveway. Other times, the first sign is a water stain on the ceiling.
Boral is a heavier shingle than most, which means a failed section rarely tears away clean. What you get instead is a slow degradation: granule loss, surface cracking, or a shingle that separates at the bond line after repeated thermal cycling. San Antonio summers bake a roof at 140-plus degrees, then winter nights drop it to the 30s. That expansion and contraction is what eventually works a Boral shingle loose at the adhesive strip. The good news: a localized repair usually solves it, and you don’t have to replace the whole roof to fix the problem.
Key Takeaways
- Typical Boral shingle repair cost in San Antonio: $450 to $1,200 installed, with most jobs landing between $550 and $850.
- We stock Boral-compatible repair materials and have them on the truck for most service calls.
- Boral shingles differ from standard asphalt shingles in weight, thickness, and sometimes profile, so matching the exact series matters.
- Every repair comes with a written price before work starts and a 365-Day Done Right Promise in writing.
Styles & brands we work with
Which Boral Models This Applies To
Boral has produced several shingle lines over the years, and we’ve worked with most of them across San Antonio. The commonly seen series here include Boral’s heavier architectural shingles and their stone-coated steel tile profiles, which show up more often on custom homes in Alamo Heights and Terrell Hills. The stone-coated steel versions are a completely different beast from asphalt: they weigh more, they fasten differently, and they require specific flashing details. If you have the stone-coated steel, don’t let a generalist roofer treat it like a standard shingle job. It won’t go well.
For asphalt-based Boral shingles, the compatibility question comes down to profile, exposure, and thickness. Boral asphalt shingles carry a heavier mat than the national average, which means a generic “similar-looking” replacement installed by a roofer who doesn’t know the difference will sit proud of the surrounding shingles and fail early at the seam. When we match a Boral shingle, we check the underside for any remaining manufacturer markings, measure the exposure, and compare the thickness. If the label is gone, we match by profile and weight class.
Aftermarket equivalents exist, and we’re honest about when they make sense. For older Boral lines that are no longer manufactured, a quality aftermarket shingle with the same weight class and profile can perform well. But on newer roofs still under a manufacturer warranty period, OEM is the safer route. Grant Whitlock has looked at enough of these to know that the wrong match is worse than no repair at all, because a mismatched shingle telegraphs itself from the street and eventually leaks at the transition line.
Signs Your Boral Shingle Repair Is Failing
- Granule accumulation in the gutter or at downspout corners. Boral shingles have a stone-like granule coating. When the bonding resin starts to fail under San Antonio’s UV exposure, granules slough off and collect in the gutter. A heavy, consistent layer of granules in one spot means the shingle above that spot is likely degrading.
- Visible cracking along the shingle surface. Temperature swings here are rough on any shingle, but Boral’s heavier mat can develop surface cracks at the points where it flexes most. Cracks that run parallel to the roofline often indicate thermal stress, while random cracking points to age or hail impact.
- Shingles lifting at the corners or bottom edge. The adhesive strip on any asphalt shingle eventually loses its grip, and Boral is no exception. When a corner lifts, wind gets underneath and starts peeling the shingle back. Once that starts, it doesn’t stop on its own.
- A water stain on the ceiling, especially after a wind-driven rain. By the time water reaches the interior, the failing shingle has usually been compromised for months. Wind-driven rain in a San Antonio thunderstorm gets under lifted or cracked shingles fast. The stain might be nowhere near the actual roof damage, because water travels along the decking before it drips.
- Missing chunks of shingle after a storm. Hail here is a fact of life, and Boral’s heavier construction is not immune to impact damage. A shingle that loses a chunk exposes the underlayment and, eventually, the decking. Even if the underlayment holds for a while, it’s not designed to be a permanent wear surface.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included
Most Boral shingle repairs on San Antonio homes fall into a predictable range. A minor repair involving two to four shingles in one section usually runs $450 to $650. That includes removing the failed shingles, checking the underlayment beneath them, installing correctly matched replacements, and sealing everything down. If the underlayment is torn or the decking shows water damage, the price moves toward $800 to $1,200 because we’re replacing those layers too, not just covering the problem.
| Repair Scope | Typical San Antonio Price |
|---|---|
| 2 – 4 shingles, single section | $450 – $650 |
| 5 – 10 shingles, two or more sections | $650 – $900 |
| Shingles plus underlayment replacement | $800 – $1,100 |
| Shingles plus decking patch | $950 – $1,200 |
Every repair price is given to you in writing before we touch the roof. Not an estimate range with fine print, a written price. If we find something unexpected while we’re up there, we stop, come down, and explain what we found before we do anything else. That’s how we’ve run things since Grant started leading this crew, and it’s not changing. The 365-Day Done Right Promise applies to every repair we do. If the repair fails within a year, we’re back out to make it right at no charge.
DIY or Call Us?
There’s a real safety line here, and we’ll be straight about it. Anything you can check from the ground with a pair of binoculars or a camera zoom: fine. Cracked shingles, lifted corners, granule loss. Look all you want. What you should not do is get on a steep San Antonio roof, especially on a two-story home, with a bundle of shingles and a pry bar. One slipped foot is a trip to the ER, and the risk goes up when you’re carrying tools and material. We’ve seen homeowners do it. Some got lucky. The ones who didn’t, we got called to finish the job anyway.
There’s also the matter of the roof itself. Walking on a Boral roof that’s already showing signs of failure can crack adjacent shingles that were perfectly fine. A trained roofer knows where to step, how to distribute weight, and how to remove a damaged shingle without disturbing the intact ones around it. That’s not us trying to scare you off; it’s just the reality of what a repair actually involves. If you’re not comfortable on a roof, or the slope is anything beyond a shallow pitch, call us at (254) 276-4369. We’ll send a technician who’s background-checked, identity-verified, and arrives in a marked vehicle with a photo ID badge. You’ll see their name and photo before they show up, so you know exactly who’s coming to the door.
FAQs
In San Antonio’s climate, Boral asphalt shingles generally last 18 to 25 years depending on sun exposure, roof pitch, and whether the attic ventilation is adequate. The stone-coated steel profiles can go longer, often 30 to 40-plus years, but the fasteners and underlayment usually need attention before the steel does. Call (254) 276-4369 if you want us to assess the actual condition of your roof, not just its age.
A true patch, meaning sealant over the damage without a shingle replacement, is almost never the right answer. It looks like a temporary fix because it is one. In a San Antonio summer, roofing sealant gets brittle and separates within a season or two. The correct repair replaces the damaged shingle with a matched one. For a precise recommendation on your specific damage, give us a call at (254) 276-4369.
A standard Boral shingle repair, meaning a few shingles in one or two sections, typically takes two to four hours on site. That includes setup, the repair itself, and cleanup. If underlayment or decking work is required, the job may stretch to a full day. We’ll give you a realistic time frame as part of the written price.
We keep Boral-compatible repair materials in stock for the most common profiles in the San Antonio market. For specialty profiles or older discontinued colors, we can source the closest available match, and we’ll show it to you before the repair so you know exactly what’s going on your roof. We also work with GAF, Owens Corning, and CertainTeed for other homes in the area. Call (254) 276-4369 and we can confirm what we have for your specific shingle.
Ready to Get That Repaired?
A Boral shingle that’s cracked, lifted, or losing granules isn’t going to fix itself, and San Antonio weather only makes it worse. The good news is that it’s usually a contained repair, not a roof replacement. Call Mercer Roofing Co San Antonio at (254) 276-4369 and talk to a real person, any time, day or night. We’ll schedule a time for an inspection, send you the technician’s name and photo in advance, and put a written price in your hand before any work starts. A roof shouldn’t be something you worry about, that’s our job.
Written by Grant Whitlock, Owner, Mercer Roofing Co San Antonio at Mercer Roofing Co San Antonio, serving San Antonio and nearby areas.