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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Owens Corning Roofing Company in San Jose: What to Know First
We’re an independent Owens Corning roofing company in San Jose, and we repair and replace Owens Corning roofs without the manufacturer-run-service markup. Most Owens Corning repairs take one visit, and we hand you a written price before a single shingle moves. If you own a home in San Jose with an Owens Corning roof that’s leaking, curling, or just past its useful life, call (669) 274-0078 and tell us what you’re seeing up there.
This page is for homeowners who already have an Owens Corning roof, or are considering one, and want a roofing company that actually knows the product line: which series hold up in the South Bay’s dry heat, which ones fail in predictable ways, and what a proper fix costs. We’re not a manufacturer call center. We’re the crew that climbs up and looks.
How Owens Corning Products Fail – and How We Fix Them
Owens Corning makes a solid shingle. But every product line has its own failure signature, and after years of working on San Jose roofs, we know what to look for before we even set a ladder. Here’s what we typically find:
- Duration Series granule loss. Duration shingles carry extra mineral granules, but San Jose’s long, hot summers bake the asphalt layer underneath. When you see granules piling up in your gutters after a dry August, that’s the shingle’s UV protection sloughing off. We don’t patch over it. We inspect the decking below, because granule loss often hides bigger problems – like heat-weakened felt that’s about to tear.
- Oakridge Series curling at the corners. Oakridge shingles tend to lift at the edges when attic ventilation is poor. San Jose attics get brutally hot, and trapped heat pushes through the decking and warps the shingle corners. The fix isn’t just new shingles – it’s checking your ridge vent and soffit airflow first, or the new shingles will curl the same way in three summers.
- Supreme Series wind lift on exposed slopes. Supreme is Owens Corning’s entry-level three-tab line, and on San Jose hillside homes with open western exposure, the wind catches the tabs and breaks the seal strip. The shingle doesn’t tear; it simply lifts and lets water walk underneath. We reseal where the shingle is still sound, and replace where the tab is cracked. Then we check the rest of the slope, because wind lift rarely happens to just one shingle.
- Valley flashing corrosion on older Owens Corning installs. This isn’t a shingle failure, but we see it constantly on Owens Corning roofs installed 15 to 20 years ago: the valley metal was never replaced, and San Jose’s winter rains eat through it. Once the valley metal rusts through, water runs into places shingles were never meant to protect. We replace the valley metal and the shingles that overlap it, because doing one without the other just moves the leak.
- Improper nail placement from previous repairs. We see a lot of Owens Corning roofs that failed because someone nailed through the wrong part of the shingle. Owens Corning’s nail strip is clearly marked, but high-nailed or overdriven nails leave shingles loose from day one. When we repair, we pull the damaged courses, inspect what’s underneath, and nail to the manufacturer’s spec – then we photograph the repair before closing it up so you can see what we did.
Styles & brands we work with






Our Owens Corning Roofing Company Process
Here’s what happens when you call us about an Owens Corning roof in San Jose:
- 1
You call, a person answers. Not a voicemail, not a callback queue. A live person takes your information, any time of day or night.
- 2
We schedule a visit and show up in the window we gave. Greg Holloway and the crew run on schedules that are realistic, not aspirational.
- 3
We inspect the roof and walk you through what’s actually going on. We’ll show you photos, and tell you which Owens Corning series you have and what we’re seeing – straight answer, no guesswork.
- 4
You get a written price before any work starts. That number doesn’t change when we’re standing on your roof with the shingles off. If we find something hidden, we stop, show you, and get your approval in writing before touching it.
- 5
We repair or replace, then test. We run water where the problem was, verify the fix, and replace anything we moved. When we leave, the area is cleaner than we found it – nails swept, debris hauled, gutters checked.
- 6
You get a written guarantee before the crew leaves. Every repair carries a written guarantee. If it fails within the guarantee period, we return and make it right at no charge under the 365-Day Done Right Promise.
See the difference
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AfterWhat Owens Corning Roofing Company Costs in San Jose
Roofing prices in San Jose run higher than the national average because labor costs here are real, and good crews aren’t cheap. But that doesn’t mean you should be guessing. Here’s what Owens Corning work typically runs, based on what we see across San Jose:
- Minor shingle repair: $350 – $650. One or two damaged shingles, resealing a small section, or replacing a short run of ridge cap.
- Localized leak repair: $500 – $1,200. This covers finding the source, replacing damaged underlayment or flashing, and reinstalling shingles to match.
- Valley or flashing replacement: $900 – $2,500 depending on length and how many shingle courses have to come off to do it right.
- Full Owens Corning roof replacement: $14,000 – $32,000 for a typical San Jose single-family home, depending on square footage, pitch, and whether the decking needs replacement.
What moves the price most is what we find when the old shingles come off: rotted decking, failed underlayment, or damaged flashing that wasn’t visible from the top. We’ll never surprise you with that cost mid-job. You’ll know before we start. Call (669) 274-0078 for a free estimate and a written number you can hold us to.
Why San Jose Homeowners Call Tilehurst Roofing San Jose for Owens Corning Work
Most of our San Jose customers have already been burned once. The contractor who no-showed. The price that changed at the door. The repair that leaked again six weeks later. We built Tilehurst Roofing San Jose around the opposite of that. We’re part of the Kingswell family of roofing companies, and we operate under the Kingswell Guarantee: say the price before the work, show up in the window we gave, put the guarantee in writing, and come back if it fails. That’s not a marketing line. It’s the operating standard.
We also stock and work with all seven major shingle manufacturers – Owens Corning, GAF, CertainTeed, IKO, Atlas, Tamko, and Boral. So if an Owens Corning repair turns into a re-roof conversation, you’re not locked into one brand. You get options, with honest trade-offs explained in plain English. Greg Holloway has spent the better part of two decades running crews across San Jose, including a stretch of tile re-roofs near Willow Glen that taught him exactly how hard South Bay summers hit older roofing materials. That experience shows up in every Owens Corning job we take.
FAQs
Yes. Owens Corning’s shingle warranty covers the product, not the installation. As an independent Owens Corning service provider, we repair to manufacturer specs, which keeps your warranty intact. We don’t cut corners, and we document what we did on every repair. Call (669) 274-0078 if you want us to walk through what your specific warranty covers.
Sometimes. Owens Corning discontinues color lines, and sun fading makes even exact matches look off. We keep samples from current Owens Corning lines and can usually find a close match that blends well enough that you won’t notice from the ground. If it’s a full replacement, the conversation shifts to which current Owens Corning series fits your home and budget.
Most repairs happen in a single visit, and we typically schedule within a few days of your call. We don’t promise same-day service because we don’t do rushed work, but we do answer the phone 24/7 and we do show up when we say we will. Call (669) 274-0078 and we’ll get you on the schedule.
It depends on age, condition, and the extent of the damage. If your Owens Corning roof is under 12 years old with isolated damage, repair usually makes sense. Past 20 years, or if you’re seeing granule loss across multiple slopes, replacement is usually the smarter money. We’ll tell you straight which one we’d do if it were our house, and you’ll get a written price either way.
No. The written price we give you before any work starts is the price you pay, unless we find hidden damage and you approve a change in writing first. No change orders at the door, no “while we’re up there” additions. Call (669) 274-0078 for your free estimate, and hold us to the number on the page.
Written by Greg Holloway, Owner, Tilehurst Roofing San Jose at Tilehurst Roofing San Jose, serving San Jose and nearby areas.