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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Roofing Company in Austin: What to Know First
We repair and replace GAF roofing systems across Austin, and a typical repair job runs $425 to $900 depending on what failed. Most GAF repairs we handle are done in a single visit, and you’ll get a written price before we touch anything. If you own a home in Austin with GAF shingles, this page covers what actually goes wrong with them, what it costs to fix, and how we work. Call (361) 202-8874 to talk through what you’re seeing.

This page is for Austin homeowners who bought a home with GAF shingles, had GAF installed, or are weighing GAF for a future roof. We’re an independent GAF service provider, not a GAF-authorized dealer, which means we tell you what the shingle actually needs rather than what a warranty brochure says it needs.
Key Takeaways
- GAF is one of the most common shingle brands on Austin roofs, and we repair GAF Timberline, Royal Sovereign, and Grand Sequoia series regularly.
- Most GAF repairs in Austin fall between $425 and $900. Full GAF replacement typically runs $11,500 to $22,000 depending on size and tear-off.
- Every GAF repair comes with our 365-Day Done Right Promise in writing, plus a free second visit if the repair fails.
- You get a written price before work starts, and a background-checked, photo-badged technician whose name and photo we send before they arrive.
Styles & brands we work with






How GAF Products Fail – and How We Fix Them
GAF makes solid shingles, but Austin’s climate finds the weak spots. Here’s what we pull off roofs in this city, week after week.
- Timberline HDZ granule loss at the south slope. Austin sun is unrelenting, and the south-facing plane of a roof takes the worst of it. We commonly see Timberline HDZ shingles on south slopes losing granules at 8 to 10 years, which exposes the asphalt to UV and accelerates aging. The fix is usually a reshingle of that plane, and we match the Timberline HDZ color so the roof doesn’t look patched.
- Royal Sovereign curling at the eaves. Royal Sovereign is GAF’s 3-tab workhorse, but 3-tab shingles trap heat at the eave edge where attic ventilation is often weakest in older Austin homes. We see edges lifting and curling first there. Our fix is resealing where possible, or replacing the eave course with properly nailed shingles and, if needed, adding intake venting so it doesn’t come right back.
- Grand Sequoia cracking under hail impact. Grand Sequoia is a thicker, heavier shingle that handles wind well but cracks rather than dents when Austin hail hits it. A cracked rubber-asphalt shingle won’t heal, so we replace the damaged shingles individually when the roof is still serviceable. If the cracking is widespread, the roof may have reached its useful life and we’ll tell you straight.
- Starter strip failures on GAF new construction. Many Austin tract homes built in the last 15 to 20 years have GAF shingles installed over a starter strip that was nailed too high or skipped at the rake edges. The first sign is shingles flapping at the eave or rake during spring wind storms. We pull the affected shingles, install a proper starter course, and resecure.
- Flashing leaks around GAF shingle-to-wall transitions. This is less about the shingle and more about how it was integrated. Austin homes built fast during boom years often have step flashing that’s only two inches high, and when wind-driven rain hits a GAF roof at a sidewall, water walks right over it. We replace with taller, properly interwoven step flashing and re-set the shingle courses.
Our GAF Roofing Company Process
- 1
You call, a person answers. A live human picks up at (361) 202-8874, day or night. You describe what you’re seeing, and we schedule a visit.
- 2
You know who’s coming. Before our technician arrives, you get their name and photo. At the door, they present a photo ID badge. They’re background-checked and in a clean, marked uniform. This is the Threshold Verified standard, and it’s non-negotiable at Mercer Roofing Co Austin.
- 3
The diagnostic. Our tech inspects the GAF roof, identifies the failed component, and photographs what they find. They’ll explain it in plain English, showing you the photos on the spot.
- 4
The written price. You get a line-item written price before any work starts. No work without it. If a repair isn’t needed, we say so. We don’t pad estimates.
- 5
The repair. We use GAF shingles that match your roof’s series and color, or quality aftermarket components where they perform equal or better. For GAF’s higher-end lines with active manufacturer warranties, we’re careful not to do work that would void your coverage.
- 6
The test and the guarantee. We water-test where it applies, walk you through what was done, and hand you the written 365-Day Done Right Promise. If the repair fails within a year, we return and make it right, free.
See the difference
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After
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AfterWhat GAF Roofing Company Costs in Austin
Austin GAF repair pricing falls into a few clear buckets. Here’s what you’re looking at.
| Work Type | Typical Austin Price Range |
|---|---|
| Single shingle replacement (shingle and labor) | $250 – $400 |
| Flashing repair or replacement (one section) | $350 – $650 |
| Vent or pipe boot reseal or replace | $300 – $550 |
| Partial reshingle (one plane, up to 400 sq ft) | $2,800 – $5,500 |
| Full GAF tear-off and replacement (typical Austin single-family roof) | $11,500 – $22,000 |
What moves the price: roof pitch and height, access, how many layers need tearing off, and whether decking underneath is rotted and needs replacement. Austin’s older neighborhoods, like Hyde Park and Bouldin Creek, often have board decking that’s seen decades of heat and humidity, so that factors in. Call (361) 202-8874 for a free estimate and a written line-item price before anything starts.
Why Austin Homeowners Call Mercer Roofing Co Austin for GAF Work
We know GAF roofing because we repair it constantly in Austin, and we also work with Owens Corning and CertainTeed systems, so if a different shingle is the smarter move for your roof, we’ll tell you without brand loyalty getting in the way. Every GAF job we do comes with a written guarantee included, and our 365-Day Done Right Promise means the repair is right or we come back on our own dime. We put that in writing, every time.
Grant Whitlock runs our Austin crew, and he’s spent decades on roofs from flat commercial decks to steep residential pitches. He’ll show up on time and explain what he found without jargon. Your roof shouldn’t be something you worry about – that’s what we’re here for.
FAQs
Most GAF manufacturer warranties cover manufacturing defects, not weather damage, and a repair done with the right materials and methods generally won’t void your coverage. We’re careful on GAF systems that carry active manufacturer warranties to use series-matched shingles and warranty-safe installation practices. If your roof is still under a GAF warranty, we’ll tell you what that warranty actually covers before you spend money on a repair.
Yes, and this is common in Austin. GAF discontinues certain Timberline color blends over time, and we keep relationships with suppliers who stock remaining inventory of older blends. If an exact match is no longer available, we’ll show you the closest alternatives and let you choose with the options in hand before we install anything.
For shingles, we use GAF series-matched product whenever possible because mixing brands on a visible roof plane looks wrong and performs differently. For accessories like flashing, pipe boots, and underlayment, we choose based on performance, not brand, and some aftermarket components outperform OEM equivalents in Austin’s climate. We’ll tell you what we’re using and why, in writing, before starting.
Most GAF repairs are scheduled within a few days of your call, and active leaks get priority. We don’t promise a same-day visit on routine work because being honest about scheduling matters more than making a phone promise we can’t keep. When you call, we’ll give you a realistic window.
If your GAF roof is under 12 years old and the damage is isolated, repair makes sense. If it’s over 15 years old, losing granules across multiple planes, or has had three or more repairs in two years, replacement is usually the cheaper path forward. We’ll show you the evidence and price both options so you can decide on facts, not a sales pitch. Call (361) 202-8874 for an exact assessment, free.
Written by Grant Whitlock, Owner, Mercer Roofing Co Austin at Mercer Roofing Co Austin, serving Austin and nearby areas.