Metal roofing
Architectural shingles
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GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
GAF Roof Replacement in Austin: What to Know First
GAF roof replacement in Austin typically runs $8,500 to $18,500 for a standard single-family home, depending on square footage, pitch, decking condition, and which GAF line you choose. Most full replacements take two to four days once materials land. We’re an independent GAF installer, not a manufacturer arm, which means we quote the roof you actually need, not the one a corporate program wants to sell you. If you’re weighing repair against replacement on a GAF roof that’s given you ten or fifteen years, this page tells you what actually matters. Call (254) 587-6371 and Dylan Pace or one of our project leads will walk you through it.
How GAF Products Fail – and How We Fix Them
Every shingle brand has its own failure fingerprint. Here’s what we see on GAF roofs across Austin, from Tarrytown bungalows to newer builds out in Mueller.
- Timberline HDZ granule loss, especially on south-facing slopes. The HDZ is GAF’s most popular architectural shingle, and it’s a solid product, but Austin’s summer sun is brutal. After eight to ten years, we often see granule shedding on the south and west exposures. It’s not a defect, it’s UV. The fix is usually a full slope replacement, not a patch job, because once the asphalt starts cooking, the shingle’s done.
- Timberline UHDZ curling at the eaves. The UHDZ is a thicker, heavier shingle, and when attic ventilation is marginal, that weight holds heat at the roof edge. Curling eaves in Austin almost always trace back to insufficient intake airflow, not the shingle itself. We fix the ventilation when we tear off, and if you’ve already had curling, we won’t put new shingles down until the airflow math works.
- Royal Sovereign 3-tab brittleness past year twelve. Older GAF homes in Austin often still carry Royal Sovereign 3-tabs. They’re a 20-year product in ideal conditions, and Texas hail usually shortens that. If yours are at year twelve or beyond and you’re seeing cracking when the temperature swings hard, replacement is the honest call. Patching brittle 3-tabs is throwing money at a roof that’s already past its serviceable life.
- Decking rot under GAF shingles on low-slope sections. GAF makes good materials, but their warranty doesn’t cover the OSB underneath. In Austin, the combination of spring storms, humidity, and occasional ice damming on north-facing porch roofs means we open up more rotted decking on GAF jobs than on any other brand, simply because GAF has the largest installed base in this market. We price decking replacement upfront at a per-sheet rate, and if we find rot after tear-off, the number doesn’t change unless the total sheet count does. You see photos before we install a single new sheet.
- GAF Camelot II sealing issues on shallow pitches. The Camelot II is a premium slate-look shingle, and we’ve replaced a handful in West Austin over the last few years. The issue is usually the same: wind-driven rain getting under shingles on roofs pitched below 4:12, where the adhesive strips never fully set after winter installation. It’s a series-specific problem we look for before quoting. Sometimes a reseal fixes it. Sometimes the roof needs proper underlayment and a pitch-appropriate product. We’ll tell you which one it is.
Styles & brands we work with
Our GAF Roof Replacement Process
Here’s what a GAF replacement looks like when Crestview Roofing Co Austin runs the job, start to finish.
- 1
Written estimate, itemized. We come out, measure the roof, check the attic ventilation, and walk the whole thing. Within a day or two, you get a written price with everything separated: shingle line, underlayment, flashing, decking allowance, dump fees. If it’s not in writing, it’s just a conversation.
- 2
Material selection based on your roof, not a pitch. We’ll show you which GAF lines fit your pitch, your HOA rules, and your budget. If you want to compare, we’ll put Owens Corning and CertainTeed options side by side in the same quote so you’re looking at real numbers, not preferences.
- 3
Permit and schedule. We pull the permit, order materials, and lock a start date. You get a live arrival time the morning of the job, a name, and a photo of the tech who’s showing up.
- 4
Tear-off and deck inspection. Old shingles come off, the deck gets checked sheet by sheet. Rotted sheets get replaced at the per-sheet rate in your written estimate. Photos document everything before we cover it.
- 5
Installation to GAF spec. We install per GAF’s published installation instructions, because that’s what keeps the warranty meaningful. Correct nail pattern, proper underlayment, new flashing, valley metal, all of it.
- 6
Final walkthrough and documentation. You get before-and-after photos, a digital invoice by text, and the Crestview 365-Day Done Right Promise in writing: if any covered issue shows up within a year, we come back and fix it at no charge.
What GAF Roof Replacement Costs in Austin
Pricing in Austin for GAF replacement runs a wide range because the homes do too. Here’s what we quote at Crestview Roofing Co Austin, honest numbers based on the jobs we’ve done across the city.
| Job Type | Typical Price Range |
|---|---|
| GAF Timberline HDZ full replacement, ~1,800 sq ft single-story | $9,500 – $13,500 |
| GAF Timberline UHDZ full replacement, ~2,400 sq ft two-story | $14,000 – $18,500 |
| GAF Timberline HDZ full replacement, ~3,000+ sq ft with steep pitch | $19,500 – $28,000 |
| Decking replacement (per 4×8 sheet, if rot found) | $75 – $110 per sheet |
| Roof decking full replacement on an older home | Add $2,500 – $5,500 |
What moves the price: pitch, story height, decking condition, number of valleys and penetrations, and whether you need new gutters or fascia work at the same time. Every estimate is a written, line-item number. Call (254) 587-6371 and we’ll send someone out to measure, no charge and no pressure.
See the difference
Before
After
Before
After
Before
AfterWhy Austin Homeowners Call Crestview Roofing Co Austin for GAF Work
We’ve been putting roofs on Austin homes since 2000, and a GAF roof replacement is one of the biggest checks a homeowner writes. So we built Crestview Roofing Co Austin around making that check fully understood. Every job gets a written price before work starts. Every job is done by background-checked, uniformed techs whose names you know before they knock. Every job is documented with photos, before and after. And every repair we make is backed by the 365-Day Done Right Promise, which includes a free second visit if something we touched fails. We install GAF, Owens Corning, and CertainTeed, so if a Timberline isn’t the right fit for your roof, we’ll tell you and show you a better option. The goal isn’t to sell you a brand. It’s to get your roof right the first time, and we put that in writing.
GAF Roof Replacement FAQs
Yes, you can mix brands on your property. The GAF warranty applies only to the GAF products installed. If you replace part of the roof with Owens Corning or CertainTeed, GAF doesn’t penalize you for the section you replace, but the new brand’s warranty covers only its own shingles. On patch jobs, we match the existing GAF shingle whenever possible. On full replacements, we’ll walk you through the warranty math for each brand so you’re choosing knowingly. Call (254) 587-6371 for exact options for your roof.
Yes. Every GAF replacement we install is covered by our 365-Day Done Right Promise, which is in writing and included at no extra cost. If a covered issue shows up within 365 days, we correct it free, including a free second visit. Manufacturer warranty coverage on the materials themselves is separate and depends on the GAF product line and installation spec. We install to GAF’s published requirements so your manufacturer warranty stays valid.
Most full GAF replacements in Austin run two to four days once materials arrive and weather cooperates. A simple single-story tear-off and install can wrap in two days. A steeper two-story with decking replacement and multiple valleys takes longer. We’ll give you a written schedule on the estimate so you know what to expect. Call (254) 587-6371 for a timeline on your specific roof.
The deciding factors are shingle age, granule loss, and decking condition. If your GAF Timberline HDZ is under ten years old with isolated storm damage, a repair makes sense. If it’s over fifteen years old with curling, granule loss, or multiple leak points, replacement is usually cheaper per year of service than chasing repairs. We’ll give you an honest read. If your roof has repairable damage, we’ll tell you and price the repair fairly. If replacement is the smarter move, we’ll show you those numbers too.
Yes. We pull permits on every full roof replacement in Austin, and the job passes final inspection before we call it done. You get the documentation in your file. It’s part of the cost we quote upfront, so there’s no surprise line item later. Call (254) 587-6371 if you’d like us to quote your GAF replacement with permit costs included.
Contact Crestview Roofing Co Austin
Dylan Pace started Crestview around a simple habit he picked up early in his roofing career: put the scope, the timeline, and the price in writing before a single nail goes in. That habit still runs every GAF replacement we do in Austin. If you’re ready to price a GAF roof replacement, or you want someone to look at your current roof and tell you straight what it needs, call (254) 587-6371. You’ll get a real person, a free estimate, and a written number before any work starts.
Written by Dylan Pace, Owner, Crestview Roofing Co Austin at Crestview Roofing Co Austin, serving Austin and nearby areas.