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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roof Replacement in West Covina: What to Know First
A full CertainTeed roof replacement in West Covina typically runs $14,000 to $28,000 for a standard single-family home, depending on the shingle line you choose and how much decking needs to be swapped out. Most jobs take 2 to 4 working days from tear-off to final cleanup. We’re Crestview Roofing Co West Covina, an independent CertainTeed service provider, and we write your price down before a single shingle comes off the truck.
If you own a CertainTeed roof that’s hit the end of its useful life, or you’ve been patching leaks for a few years and you’re ready to stop, this page covers what actually matters: how CertainTeed products fail in our climate, what replacement costs, and what our process looks like from the first call to the final invoice. Call (831) 777-6412 to schedule a free estimate.
How CertainTeed Products Fail – and How We Fix Them
CertainTeed makes solid roofing materials, but every product line has its own pressure points. Here’s what we see on West Covina roofs, and how we handle each one during a replacement:
- Landmark shingle granule loss and cracking. CertainTeed’s Landmark line is one of the most common architectural shingles we tear off in West Covina. After 15 to 20 years of San Gabriel Valley sun, the asphalt layer dries out, granules shed into gutters, and shingle edges start to curl or crack. This isn’t a manufacturing defect, it’s just UV fatigue. The fix is full replacement with a fresh Landmark or Landmark Pro system, including new underlayment and proper ventilation.
- Presidential Shake delamination in high-wind areas. CertainTeed Presidential Shake is a heavyweight luxury shingle, but homes on the northern edge of West Covina near Galster Wilderness Park get hit with Santa Ana wind gusts that can lift and delaminate aging shake-style tabs. Once water gets under the tabs, the underlayment starts to go. On these jobs we check the entire field for hidden lift, then replace with a properly nailed, high-wind-rated system.
- Foundations of failure: decking rot under older CertainTeed installations. Here’s something CertainTeed’s own site won’t tell you: a lot of West Covina homes built in the 1960s and 1970s got their first CertainTeed roof installed over 3/8″ plywood that was never meant to carry a second full re-roof. By the time we’re called, the decking has water damage around the nail lines. We budget for decking replacement in writing before we start, so the number on your quote is the number on your invoice, not a surprise change order.
- Flashing failures at sidewalls and chimneys. On CertainTeed roofs, we commonly see rusted or improperly lapped flashing at chimney bases and where second-story walls meet roof slopes. The shingles can be fine while the metal underneath has been quietly leaking for years. Dylan Pace has opened up more than a few West Covina roofs where the shingles looked great from the street and the plywood underneath had been rotting for a decade. During replacement, we cut out and replace all flashing, step flash every wall intersection properly, and seal with the right products for our climate.
- Improper ventilation cooking CertainTeed shingles from below. CertainTeed warranties assume adequate attic ventilation, and a lot of older West Covina homes don’t have it. Heat builds up under the deck, the shingles bake from both sides, and the roof fails years early. We inspect intake and exhaust ventilation on every replacement and add ridge vents or box vents when the math says airflow is short. It extends the life of your new CertainTeed roof and keeps the manufacturer’s warranty valid.
Styles & brands we work with
Our CertainTeed Roof Replacement Process
Here’s how a CertainTeed replacement works with us, from the first call to the last nail:
- 1
You call (831) 777-6412. A live person answers. You tell us what’s going on with your roof, and we schedule a time to come look at it. You’ll get a trackable arrival window, so you’re not waiting around wondering if we’re showing up.
- 2
We inspect the roof honestly. Dylan Pace or one of our lead techs walks the roof, checks the decking from below when possible, looks at ventilation, flashing, and the existing CertainTeed product line. We’ll tell you what actually needs to happen today and what can wait.
- 3
You get a written price before any work starts. Not a ballpark, not a guess. We write down the shingle line, the underlayment spec, the decking replacement allowance, the flashing scope, and the total. Every quote I write is a promise – if the number changes, you hear from me first.
- 4
Tear-off and deck inspection. We pull the old CertainTeed shingles, inspect every sheet of decking, and replace anything that’s soft, water-damaged, or below spec. This is the step where cheap roofers find a way to bill you more. Ours is already in writing.
- 5
Installation and documentation. We install the new CertainTeed system, take photos before, during, and after, and send you a digital invoice by text. You see exactly what got done without climbing a ladder.
- 6
Guarantee in writing. Every replacement comes with our 365-Day Done Right Promise: if it’s not done right, we make it right, in writing, for a full year. Free second visit if anything fails. No negotiation, no runaround.
See the difference
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AfterWhat CertainTeed Roof Replacement Costs in West Covina
Here are the realistic numbers we quote in West Covina for CertainTeed replacement work. These are full tear-off and reinstallation prices, including underlayment, flashing, disposal, and standard decking allowance:
| Scope | Typical Cost Range |
|---|---|
| CertainTeed Landmark architectural shingle replacement (1,200 – 1,800 sq ft roof) | $14,000 – $19,000 |
| CertainTeed Landmark Pro replacement (1,800 – 2,500 sq ft roof) | $19,000 – $25,000 |
| CertainTeed Presidential Shake replacement (class 4 impact-rated, larger roof) | $26,000 – $34,000 |
| Roof decking replacement (per sheet, when existing plywood is rotted) | $85 – $120 per sheet |
| Flat roof section with CertainTeed Flintlastic SA (small attached patio/garage) | $3,500 – $6,500 |
What moves the price: roof size and pitch, how much decking needs replacing, whether you want standard Landmark or upgrade to Landmark Pro or Presidential, and whether we’re adding ventilation. The quote you get is the price you pay. Call (831) 777-6412 for a free estimate, and we’ll put the number in writing.
Why West Covina Homeowners Call Crestview Roofing Co West Covina for CertainTeed Work
We don’t ask you to trust us on vibes. We put it in writing. You get a written price before any work starts, before-and-after photos of your actual roof, a live trackable arrival time, and a digital invoice sent by text. That’s The Relay Visibility Guarantee, and it applies to every CertainTeed replacement we do.
Our techs know CertainTeed products from years of tearing them off and putting them back on. But if a different shingle fits your roof and budget better, we also work with GAF and Owens Corning, so you’re never forced into a brand decision. Every replacement is covered by our 365-Day Done Right Promise, and a live person answers our phone 24/7. Call (831) 777-6412 and Dylan Pace will read your roof honestly.
FAQs
No, replacing an old CertainTeed roof with a new CertainTeed system does not void anything, because the old roof is already at the end of its warranty term. If you’re under an active warranty and the roof fails prematurely, we can help you document the failure for a manufacturer claim. Call (831) 777-6412 and we’ll help you sort out what’s covered.
We can usually match current CertainTeed colors and lines, but older CertainTeed products may be discontinued or the color batch may have shifted after years of sun exposure. In West Covina, we’re honest about whether a patch will look right or whether a full replacement makes more sense. We’ll show you samples before we order anything, and the price is written down first.
Most single-family CertainTeed replacements take 2 to 4 working days. Larger homes, steep roof pitches, extensive decking replacement, or Presidential Shake installations can run 5 to 7 days. We’ll give you a schedule in writing and keep you posted with photo updates as the job progresses. Call (831) 777-6412 for a timeline specific to your roof.
Landmark is the cost-effective standard architectural shingle. Landmark Pro is heavier and rated for higher winds, which matters for homes on the northern edge of West Covina that catch Santa Ana gusts. Presidential Shake is a premium look with class 4 impact resistance. We’ll walk you through the price difference for your roof size and tell you which one fits your home and budget, no upsell required.
Only if the decking underneath is worse than we could see from the inspection, and we plan for that in the written quote before we start. We include a decking allowance per sheet, so you know exactly what the worst case looks like. Every quote I write is a promise – if the number changes, you hear from me first. Call (831) 777-6412 and we’ll put it in writing.
Written by Dylan Pace, Owner & Lead Roofer, Crestview Roofing Co West Covina at Crestview Roofing Co West Covina, serving West Covina and nearby areas.