Owens Corning
Architectural shingles
Metal roofing
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GAF
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Owens Corning Roof Installation in Austin: What to Know First
Owens Corning roof installation in Austin typically runs $9,800 to $18,500 for a full tear-off and replacement on an average single-story home, depending on the shingle line, roof pitch, and decking condition. We complete most Owens Corning tear-offs in two to four days and always provide a written price before the first nail goes in. If you own a home in Austin and your Owens Corning roof is nearing the end of its life or showing signs of failure, call Mercer Roofing Co Austin at (361) 202-8874 for a free estimate. We’re an independent Owens Corning service provider, which means we install the full Owens Corning lineup without being tied to any single distribution channel or sales quota. That independence lets us recommend the right Owens Corning product for your roof, not the one we’re incentivized to push this quarter.

Key Takeaways
- Owens Corning Duration and TruDefinition Duration are the two lines we install most in Austin, with Duration Storm showing up on homes rebuilt after recent hail seasons.
- Full Owens Corning roof installation in Austin runs $9,800 to $18,500 for most homes; steep pitches, two-story access, and decking replacement push the number higher.
- Mercer Roofing Co Austin is an independent Owens Corning service provider, not a manufacturer-authorized installer, which means we’re free to tell you when a different shingle line makes more sense.
- Every Owens Corning installation includes Mercer’s 365-Day Done Right Promise and a written price before work starts.
Styles & brands we work with






How Owens Corning Products Fail – and How We Fix Them
Owens Corning makes a solid shingle. But every product has failure patterns, and knowing those patterns is what separates a competent installer from one who just nails shingles down. Here’s what we see on Austin roofs.
- Duration Series granule loss in the first five years. The Duration line uses Owens Corning’s SureNail fabric strip, which is a good system, but we’ve pulled shingles off Austin roofs where granule loss was accelerating well before the shingle’s rated life. The cause is usually not the shingle itself. It’s attic ventilation. Austin attics run hot from May through September, and an under-ventilated attic bakes shingles from below. The fix starts with airflow, not just shingle replacement. We inspect ridge and soffit venting on every Owens Corning job before we order a single bundle.
- Berkshire and Woodmoor warping on west-facing slopes. The heavier architectural lines, Berkshire and Woodmoor, carry a lot of asphalt and can warp when the Austin sun hits a west-facing roof plane all afternoon. This is a climate-driven failure, not a manufacturing defect. Warped shingles lose their seal and become wind-lift candidates. When we see this, we recommend a full slope replacement and we re-nail to Owens Corning’s six-nail high-wind pattern, not the four-nail standard.
- TruDefinition Duration color fade misdiagnosed as granule loss. Homeowners call us thinking their roof is failing because the color looks uneven. On closer look, the granules are intact. TruDefinition Duration uses a two-color granule blend that can appear streaky when light hits it at certain angles, especially on low-slope sections. We check with a granule-loss test rather than selling a replacement. That kind of honesty is why Austin homeowners keep our number.
- Leaking at sidewall flashing junctions. This is the most common Owens Corning-related leak we repair in Austin, and it’s almost never the shingle’s fault. The flashing was installed wrong or the step flashing has separated from the wall. On Owens Corning installations we re-do sidewall flashing with proper step flashing and counter flashing, then re-install the shingles so they seat tight against the metal. Skipping this detail is how you get a roof that passes a visual check and leaks in the next storm.
- Oakridge series seal softening in high-heat seasons. Older Oakridge shingles sometimes lose their self-seal bond after several Austin summers. The adhesive strip softens and the shingle corners lift. You’ll hear them flapping before you see the damage. We re-seal using manufacturer-approved adhesive when the shingles are still structurally sound, and we always check the nail line while we’re up there because lifted corners are a good sign the nails were set too high in the key way.
Our Owens Corning Roof Installation Process
Here’s exactly how an Owens Corning roof installation goes with our crew, from the first phone call to the final walkthrough.
- 1
Call and schedule the inspection. A live person answers at (361) 202-8874, day or night. We schedule a time that works for you. You’ll receive the name and photo of the technician coming to your door before we arrive.
- 2
On-site roof inspection. We check shingle condition, decking, flashing, ridge venting, and attic airflow. For Owens Corning work, we also note the existing shingle line so we can match or upgrade deliberately rather than guessing.
- 3
Written line-item estimate. You get a written price covering tear-off, underlayment, decking repairs if needed, shingles, flashing, ridge vents, and cleanup. No work starts without this document and your signature.
- 4
Material selection and delivery. We bring the Owens Corning shingles, underlayment, and flashing to your home before tear-off. Having materials staged means we’re not delaying the job over a late truck.
- 5
Tear-off, deck inspection, and installation. We remove the old roof, inspect and replace damaged decking, then install new underlayment, ice and water shield at eaves and valleys, shingles, ridge cap, and flashing. We follow the manufacturer’s installation spec to the letter, because warranty claims die on shortcuts.
- 6
Cleanup, inspection, and written guarantee. We magnet-sweep for nails, run a final inspection with you, and hand over a written 365-Day Done Right Promise along with the manufacturer’s warranty documentation.
See the difference
Before
After
Before
After
Before
AfterWhat Owens Corning Roof Installation Costs in Austin
Here are straight numbers for Austin homes, not national averages pulled from a spreadsheet.
- Full tear-off and Owens Corning Duration replacement on a 1,500-sq-ft single-story home: $9,800 to $13,500
- Full tear-off with TruDefinition Duration on a two-story, 2,500-sq-ft home: $15,000 to $18,500
- Slope-only replacement (one roof face) with Owens Corning Duration: $3,200 to $5,800
- Decking replacement (per 4×8 sheet, when wood is rotted or delaminated): $75 to $110 per sheet
- Ridge vent replacement with Owens Corning-compatible venting during a full install: $400 to $900 included in most full replacements
What moves the price: roof pitch (anything over 7/12 costs more in labor), two-story access, number of valleys and dormers, and the condition of the decking underneath. Austin’s hail history means decking is often fine but sometimes worse than expected. We won’t know until the old shingles come off, and we’ll show you photos if we find damage. Call (361) 202-8874 for a free estimate with real numbers specific to your roof.
Why Austin Homeowners Call Mercer Roofing Co Austin for Owens Corning Work
Most roofing companies in Austin install Owens Corning. The difference comes down to what happens before and after the shingles go on. We send you the name and photo of your technician before they arrive. They present a photo ID badge at the door, wear a clean marked uniform, and have passed a background check under the Threshold Verified standard. That matters if you’re home alone, if you have kids, or if you simply don’t want a stranger on your property without proof of who they are. Our 365-Day Done Right Promise covers every Owens Corning installation: if the work isn’t right within a year, we make it right, in writing. We also install GAF, CertainTeed, IKO, Atlas, Tamko, and Boral, so if an Owens Corning product isn’t the best fit for your roof, we’ll tell you and explain why. Grant Whitlock and the crew have been serving Austin homeowners for years, and we treat your roof like it’s the only one on our schedule that week.
FAQs
Most full Owens Corning roof installations in Austin take two to four days depending on roof size, pitch, and whether decking replacement is needed. Slope-only replacements are usually done in one day. Weather delays are the wildcard, and Austin’s spring storm season can push a schedule back. Call (361) 202-8874 and we’ll give you a realistic timeline for your specific roof.
No. Owens Corning warranties apply as long as installation follows the manufacturer’s published installation instructions, regardless of who installs the shingles. We follow Owens Corning’s installation spec to the letter and keep documentation on every job. The manufacturer warranty stays intact. Our 365-Day Done Right Promise covers our workmanship on top of that.
A full Owens Corning installation in Austin runs $9,800 to $18,500 for most homes. The range depends on roof size, pitch, number of slopes, and decking condition. We provide a written line-item estimate before any work begins, so the number we quote is the number you pay. Call (361) 202-8874 for a free estimate with real numbers for your roof.
We do both. If your Owens Corning roof has a few failing shingles, lifted seal strips, or a flashing leak, we repair it. If the roof is past its useful life or damage spans multiple slopes, we’ll tell you straight and show you the evidence. We won’t sell a replacement when a repair will do, and we won’t patch a roof that needs to go. Call (361) 202-8874 and we’ll inspect it and give you our honest recommendation.
Only if the decking underneath is rotted or delaminated and needs replacement. We can’t see the decking until the old shingles come off, so we include a per-sheet price for decking in the written estimate upfront. If we find damage during tear-off, we show you photos before we do anything else. There are no surprise change orders, ever. Call (361) 202-8874 to schedule your free estimate.
Written by Grant Whitlock, Owner, Mercer Roofing Co Austin at Mercer Roofing Co Austin, serving Austin and nearby areas.