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Wellborn Roofing: The Orange County Owner’s Guide
We stock and install Wellborn-compatible roofing throughout Orange County, with installed repairs typically running $400 – $1,800 and full replacements at $8,000 – $20,000 depending on roof size and material grade. Most homeowners discover a failed Wellborn component the way you just did: a brown spot blooming on the ceiling, grit gathering in the gutter, or a shingle flapping after a Santa Ana wind event. The good news is that identifying the failed part early keeps a $600 repair from becoming a $14,000 replacement.
Trevor Nash and our team at Penhallow Remodeling Orange County have worked on Wellborn roofing across Irvine’s older neighborhoods near the Spectrum, Tustin, and beyond, where 1980s and 90s builds are hitting the end of their original roof life. We’re an independent service provider, not affiliated with Wellborn, but we know their material specs well enough to match parts correctly the first time.
Which Wellborn Models This Applies To

Wellborn’s roofing line covers three main product families we see regularly in Orange County: their architectural asphalt shingle series (most common on mid-80s through late-90s residential builds), their concrete tile profiles (common in Santa Ana, Orange, and older Fullerton tracts), and their flat-roof membrane systems used on some mid-century modern homes in Anaheim and Garden Grove.
The compatibility gotcha most owners hit: Wellborn changed shingle thickness from 0.25″ to 0.28″ in 2003, and the older thinner profile is no longer manufactured. If you have a pre-2003 Wellborn roof, a patch using the current spec will sit visibly proud of the surrounding shingles unless the installer adds a tapered transition course. We carry transition material on the truck for exactly this situation.
If you’re unsure which Wellborn line you have, check the underside of a lifted shingle for a printed code (starts with “WB-AR” for architectural, “WB-CT” for concrete tile) or measure the exposed tab height: 5.75″ is pre-2003, 5.5″ is current. The OEM-versus-aftermarket decision for Wellborn is simpler than most brands because their architectural shingle matches cleanly with GAF Timberline HDZ and CertainTeed Landmark, both of which we stock. For concrete tile, we source matching profiles from local Orange County suppliers based on color swatch and tile radius. We’ll always quote the equivalent brand option alongside the OEM part so you can decide with real numbers in front of you.
Styles & brands we work with







Signs Your Wellborn Roofing Is Failing
- Granule loss in gutters or at downspout openings. Wellborn asphalt shingles shed granules as the embedded ceramic coating breaks down under UV, and Orange County’s 270+ sunny days per year accelerates this. A tablespoon of granules per month is normal; a cup is the shingle telling you it has maybe two summers left.
- Curling shingle edges or lifted corners. This is the adhesive strip failing, usually after 12 – 15 years of direct sun exposure. On south-facing slopes in Anaheim Hills or Yorba Linda, we see this happen three to five years sooner than on north-facing slopes.
- Ceiling stains or drips during the first rain after a dry stretch. Hairline cracks in Wellborn underlayment let water through slowly, and California’s long dry season means the damage accumulates invisibly before it finally shows. By the time you see the stain, the decking underneath is usually already soft.
- Broken or displaced concrete tiles. Wellborn concrete tiles are sturdy but brittle. The freeze-thaw cycle is rare in Orange County, but a dropped tree branch or a poorly aimed satellite dish installation cracks them clean through. One cracked tile lets water sit against underlayment for months before you notice anything inside.
- A chalky white film on the roof surface. This is oxidation of the shingle mat itself, and it means the asphalt binder has lost its flexibility. A chalky roof will tear rather than bend when we lift a shingle for inspection, which tells us replacement is the honest recommendation, not another patch.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included

Here’s what you can expect to pay in Orange County for Wellborn-compatible roofing work:
- Small repair (6 – 12 shingles, flashing re-seal): $400 – $900
- Larger repair (ridge cap replacement, pipe boot, valley re-flashing): $800 – $1,800
- Partial re-roof (single slope, underlayment replacement): $2,500 – $5,000
- Full roof replacement (architectural shingle, tear-off and haul): $8,000 – $20,000
What moves the number: roof square footage, pitch (a steep 8/12 pitch on an Irvine hillside costs more in labor than a low-slope 3/12 ranch in Westminster), number of existing layers, and whether the decking is still sound. Our written quote separates parts and labor line by line, and we commit to that number before any work starts. The Kingswell Way means the price we hand you is the price on the invoice, period.
Every repair and replacement we do carries our 365-Day Done Right Promise: if the work fails inside that year, we come back and fix it at no charge. That’s in writing, on every job.
DIY or Call Us?
Here’s the honest split. You can safely check three things: look for granules in the gutter after a rain, photograph any lifted shingles from the ground with a zoom lens, and note where ceiling stains appear so you can tell us exactly which slope is leaking. That’s real information that helps us quote accurately over the phone.
What we don’t recommend is getting on the roof. Wellborn concrete tiles are brittle when walked on wrong, asphalt shingles get slick with morning marine layer moisture, and a roof height fall is the most common serious injury in residential construction. Our technicians are background-checked and uniformed, they arrive with the right safety gear, and they inspect before they quote. If you’ve spotted something concerning from the ground, call (424) 541-1701 and describe what you’re seeing. We’ll give you the number first, then pick up the tool.
FAQs

Wellborn architectural shingles in Orange County typically last 18 – 22 years, with south-facing slopes running 3 – 5 years shorter because of UV and heat exposure. Concrete tile from Wellborn can last 40+ years with intact underlayment, but the underlayment itself usually needs replacement at the 20 – 25 year mark. Call (424) 541-1701 and we’ll inspect what you have and give you a straight lifespan estimate in writing.
Yes, if the damage is localized to a specific area and the underlying decking is still sound, a repair is usually the right call for $400 – $1,800. If the decking is soft, the shingles are chalky across multiple slopes, or you’ve had repeated repairs in the same area, replacement is the less expensive path over three years. We’ll show you photos of what we find and let you make the call with the costs in front of you.
A typical repair takes one visit, usually 3 – 5 hours including setup and cleanup. A full re-roof on an average Orange County single-family home runs 2 – 4 days depending on weather and decking condition. We give you a defined arrival window before we start and the job site is cleaned daily.
We carry common Wellborn-compatible shingle profiles, ridge caps, pipe boots, and transition wedges on the truck for same-visit repairs. For concrete tile matching and full roof tear-offs, we source from Orange County suppliers with a 2 – 5 business day lead time. We also stock parts for KraftMaid, Cambria, and Silestone products, which matters if your roof leak has damaged interior finishes we’ll need to address.
Give us a call at (424) 541-1701 to schedule a free estimate. We’ll inspect your Wellborn roofing, hand you a written price, and stand behind the work with the 365-Day Done Right Promise.
Written by Trevor Nash, Owner, Penhallow Remodeling Orange County at Penhallow Remodeling Orange County, serving Orange County and nearby areas.


