Owens Corning
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Owens Corning Roofing Company in Miami: What to Know First
Owens Corning roof repair in Miami typically runs $425 to $2,400 depending on whether we’re replacing a few shingles or rebuilding the flashing system around a chimney. Most jobs are completed in one visit, with a written price in your hand before any work starts. We’re an independent Owens Corning service provider, not a factory warranty center, which means we tell you plainly when a repair makes sense and when the roof has hit the end of its useful life.
This page is for Miami homeowners with Owens Corning shingles who want to know what’s wrong, what it costs, and who’s walking up the driveway. If your Owens Corning roof is leaking, lifting, or losing granules, call (850) 753-2996 for a straight answer.
How Owens Corning Products Fail – and How We Fix Them
Owens Corning makes solid shingles, but Miami’s climate works against every roof in specific, predictable ways. Here’s what we actually see on Owens Corning jobs in this city.
- Duration Series granule loss near roof valleys. The Duration line’s SureNail strip holds well, but the heavy granule coating wears faster where rainwater channels through valleys at high speed. You’ll see dark patches and grit in the gutters within 12 to 15 years. Our fix is selective valley shingle replacement and a check of the valley metal underneath, which is often the real culprit.
- Oakridge series lifting at the eaves. On older Oakridge installs, we regularly find that the starter strip wasn’t nailed within the nail line, so the first course loses its grip and wind gets under it. In neighborhoods like Kendall and Cutler Bay, we resecure the eave edge and replace any shingles with stripped nail holes.
- Sealant strip failure on south-facing slopes. Owens Corning’s thermal sealant activates properly, but constant direct sun on a south-facing Miami roof can cure it past its useful flexibility in strong, sustained UV. The shingles hold but won’t self-seal. We re-seal under-lifted tabs with a compatible adhesive and inspect for anything that’s gone further.
- Ventilation-related curling on Duration and Supreme lines. Curling at the edges isn’t always about the shingle. Many Miami attics run 140-plus degrees in August, and when intake ventilation is blocked by insulation or stucco, the heat pushes upward and warps the shingle. We address the ventilation first, then replace the damaged sections. Fixing only the shingle would fail again within a season.
- Impact cracking on brittle legacy lines. Owens Corning’s older fiberglass lines like the original Supreme became brittle after years of Miami heat and occasional hail. Branches, foot traffic, or even a strong storm can crack them. We replace these with a modern Owens Corning product or a comparable GAF or CertainTeed line if the whole roof needs doing, which is usually the case when brittleness is roof-wide.
Styles & brands we work with






Our Owens Corning Roofing Company Process
Every Owens Corning job through Mercer Roofing Co Miami follows the same steps, whether it’s a small repair or a full re-roof.
- 1
Call and same-site diagnosis. You call (850) 753-2996, a live person answers, and we schedule a technician. You’ll receive the tech’s name and photo before they arrive. When they knock, they’ll be in a marked uniform and show you a photo ID badge.
- 2
On-roof inspection. The technician walks the roof, not just the area you flagged. We check flashing, pipe boots, ridge vents, and the decking underneath the problem spot. Grant Whitlock personally attends every inspection and walks the roof himself.
- 3
Written price with a plain-English breakdown. Before anything is touched, you get a written line-item price covering labor, materials, and any decking or underlayment work. No work starts without your sign-off.
- 4
Parts decision: OEM or quality aftermarket. If Owens Corning shingles are available locally, we use them. If a specific color is discontinued, we match the nearest current Owens Corning line and tell you exactly what we’re installing. No surprises, no “close enough” without your approval.
- 5
Repair or replacement, done clean. We seal every penetration, replace every damaged section, and haul away all debris. The yard looks like we were never there, except the roof is fixed.
- 6
The 365-day test period. Every job includes our 365-Day Done Right Promise. If the work isn’t right within a year, we make it right, at no additional charge. In writing.
See the difference
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AfterWhat Owens Corning Roofing Company Costs in Miami
Here’s what we charge for common Owens Corning scenarios in Miami, with real numbers.
- Small shingle replacement (3 – 10 shingles): $425 – $700
- Valley flashing repair or replacement: $650 – $1,400
- Pipe boot and vent flashing replacement: $350 – $600 per penetration
- Eave and rake edge resecuring (up to 50 linear feet): $800 – $1,800
- Sectional re-roof (single slope, full strip and replace): $3,500 – $7,200
What moves the price: slope and height, how many layers we’re removing, whether decking or underlayment needs replacing, and whether we’re matching an active color or sourcing a discontinued one. You’ll get the exact number in writing before work begins. Call (850) 753-2996 for a free estimate.
Why Miami Homeowners Call Mercer Roofing Co Miami for Owens Corning Work
Miami has hundreds of roofing companies. Most of them will send someone to your door. The difference with us is you know who that someone is before they knock. We send the technician’s name and photo ahead of every visit, and they badged-in with a photo ID at the door. That’s the Threshold Standard, and every Mercer Roofing Co Miami technician is held to it, with every technician background-checked and identity-verified before they step onto your property.
We’re not a pop-up storm chaser. We’ve been roofing Miami homes since 2000, and Grant Whitlock has spent the better part of three decades putting roofs on everything from Coral Gables bungalows to flat-top commercial buildings near Brickell. He’s walked enough Miami hurricane seasons to know exactly where a roof fails first. We also work with GAF and CertainTeed, so if your Owens Corning roof needs a full replacement and another brand is the better value, we’ll tell you straight. A roof shouldn’t be something you worry about – that’s our job.
FAQs
Yes. If the exact color and line are no longer made, we match the closest current Owens Corning shingle and flag the visual difference in writing before we start. The repair is watertight and warranty-backed regardless of color match.
Repairs performed by a licensed, independent contractor don’t void the manufacturer’s warranty, but Owens Corning’s warranty is on the materials, not the installation, and it’s heavily prorated after the first five years. What matters more is that our work carries our own 365-Day Done Right Promise in writing.
Yes. Owens Corning offers modified bitumen rolled roofing products, and we repair those too. Miami flat roofs fail most often at seams and drains, and we inspect every seam before quoting. Call (850) 753-2996 to schedule an inspection.
We answer the phone 24/7, and we’ll get a technician to your home as soon as the same day based on schedule and the severity of the leak. You’ll receive the tech’s name and photo before they arrive. Call (850) 753-2996 and a live person will help you right away.
Written by Grant Whitlock, Owner, Mercer Roofing Co Miami at Mercer Roofing Co Miami, serving Miami and nearby areas.