Metal roofing
Architectural shingles
Tile roofing
GAF
Owens Corning
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roof Installation in West Covina: What to Know First
CertainTeed roof installation in West Covina typically runs $9,800 to $18,500 for a full tear-off and replacement on a standard single-family home, depending on the shingle line you choose and your roof’s pitch. We complete most installations in 2 to 5 days, and every job gets a written price before we pull the first shingle. If you own a CertainTeed roof that’s failing, or you’re planning a new install with CertainTeed materials, this page covers what actually matters: which lines hold up in Southern California heat, where they fail, what repairs cost, and how we run a job you can track from your phone.

We’re Crestview Roofing Co West Covina, an independent CertainTeed service provider led by Dylan Pace. We’re not authorized by or affiliated with CertainTeed, which matters because it means we fix problems the way they actually show up in West Covina, not the way a corporate warranty flowchart assumes. Call (831) 777-6412 for a free estimate.
How CertainTeed Products Fail – and How We Fix Them
- Landmark shingle granule loss on south-facing slopes. CertainTeed’s Landmark line is the most common architectural shingle we install and repair in West Covina. On roofs that get direct afternoon sun, especially in neighborhoods like Woodgate and South Hills, the asphalt layer cooks faster than the granules can hold. You’ll see granules collecting in gutters within 8 to 10 years. We fix this by replacing the affected slopes with Landmark or Landmark Pro, and we always check ventilation first because attic heat accelerates granule shedding faster than sun exposure alone.
- Presidential Shake TL curling at the eaves. The Presidential Shake line is a luxury triple-layer shingle that looks sharp but carries real weight. When the decking underneath was installed in the 1980s or 1990s without enough fasteners at the eaves, the overhang can flex and the shingle tabs start to curl upward. It looks like a manufacturing defect, but it’s usually a decking issue. We pull the bottom two courses, re-secure the decking to code, and reinstall with proper nailing patterns. Skipping this step just means the curl comes back in two years.
- Integrity Roof System flashing failures at pipe boots. CertainTeed’s Integrity system pairs their shingles with matching underlayment and flashing components. The weak point we see consistently across West Covina is the rubber pipe boot collar. In our climate, the rubber gasket dries out and splits around year 12 to 15, well before the shingles fail. When we install Integrity systems, we often upgrade to a lead pipe boot or a high-silicone aftermarket boot that handles UV better than the stock rubber. It’s a $60 part that prevents a $1,800 ceiling repair.
- Highland Slate cracking in extreme heat cycles. Highland Slate is a polymer-based synthetic slate tile. It’s lightweight and looks close to real slate, but polymer expands and contracts more than asphalt. On West Covina roofs where the nighttime temperature swings hard from summer days pushing 100°F down to the 50s at night, we’ve found cracks near nail points when the tiles were nailed too tightly. The fix is re-installation with the manufacturer’s recommended fastener torque, which allows the tile to move without stressing the nail hole.
- Northgate ClimateFlex underlayment buckling during installation. Northgate ClimateFlex is a peel-and-stick underlayment CertainTeed specs for cooler climates, but some West Covina homeowners choose it for added leak protection. The issue: in our heat, if it’s left exposed for more than a few days before shingles go on, it can wrinkle and buckle. We schedule Northgate jobs so the shingles go down within 48 hours of the underlayment. If we see buckling, we cut and patch before installing shingles rather than trapping a wrinkle under the finished roof.
Styles & brands we work with






Our CertainTeed Roof Installation Process
- 1
Roof and attic inspection. We walk the entire roof, check the attic for ventilation and decking condition, and document everything with photos you can see from the estimate PDF we text you. We’re looking for what actually failed, not just what you noticed.
- 2
Written price before work starts. Every quote I write is a promise: if the number changes, you hear from me first. You get a line-item price covering tear-off, decking repairs if needed, underlayment, shingles, flashing, and cleanup. The number on the page is the number on the invoice.
- 3
Parts decision. We discuss OEM CertainTeed components versus quality aftermarket upgrades where they make sense, like pipe boots and ridge vents. We always install to preserve any remaining manufacturer warranty, and we’ll tell you plainly when an aftermarket part outperforms the OEM spec.
- 4
Tear-off and decking prep. We strip the old roof, inspect the decking board by board, replace anything rotted or delaminated, and re-secure loose sheathing before the first underlayment roll goes down.
- 5
Installation and daily photo updates. Underlayment, shingles, flashing, ridge caps. You get before-and-after photos of the work as it progresses, so you’re never guessing what happened under the finished roof. Our techs are background-checked and uniformed, and you’ll know exactly who’s on your roof and when they arrive.
- 6
Cleanup, inspection, and your written guarantee. We magnet-sweep the property for nails, walk the finished roof with you, and hand over your 365-Day Done Right Promise in writing. If anything covered fails within a year, we come back and fix it at no charge.
See the difference
Before
After
Before
After
Before
AfterWhat CertainTeed Roof Installation Costs in West Covina
Here are honest ranges for the CertainTeed jobs we do most often in West Covina. These are full installation prices including tear-off, underlayment, flashing, and cleanup:
- Landmark architectural shingle full roof: $9,800 to $13,500 on a standard single-family home, depending on square footage and pitch
- Landmark Pro full roof: $12,000 to $16,200. Heavier, better wind rating, and a stronger warranty than standard Landmark
- Presidential Shake full roof: $14,500 to $18,500. Premium look with a premium labor cost because of the weight and install complexity
- Highland Slate synthetic tile: $13,800 to $17,400. Lightweight slate alternative with a longer lifespan than asphalt
- Partial replacement (single slope or repair): $1,800 to $4,800 depending on the size of the slope and whether underlayment needs replacing
What moves the price: roof pitch, number of stories, how much decking needs replacement, and whether you need extra ventilation work. If your existing roof has two layers of shingles, add $1,500 to $2,500 for the extra tear-off. Call (831) 777-6412 for an exact line-item quote. Estimates are free, and they come to you in writing before any work starts.
Why West Covina Homeowners Call Crestview Roofing Co West Covina for CertainTeed Work
Dylan Pace grew up in Los Angeles and completed a construction technology program at East Los Angeles College before spending over a decade running crews across the San Gabriel Valley. He’s worked streets near Galster Wilderness Park more times than he can count, from full tear-offs to flashing repairs on roofs that had been leaking quietly for years. That’s the kind of local familiarity that means we know what a West Covina roof actually endures: relentless UV, Santa Ana winds, and decades-old decking that wasn’t always installed to modern code.
We put every job under The Relay Visibility Guarantee. Written price first. Photo documentation before and after. A live trackable arrival time. A digital invoice sent right to your phone. And every repair we make is covered by the 365-Day Done Right Promise, in writing, at no extra cost. If a covered repair fails within a year, we come back and make it right. No negotiation, no runaround. We also install GAF and Owens Corning, so if CertainTeed isn’t the right fit for your roof, we’ll tell you honestly and price the alternative. A live person answers our phones 24/7 at (831) 777-6412.
FAQs
No. As an independent CertainTeed service provider, we install to preserve your manufacturer warranty. That means using the correct nailing pattern, the right underlayment for the shingle line, and proper flashing details. We’re not authorized by CertainTeed, but we follow their installation specs exactly, and we document every step with photos so you have proof of proper installation if you ever file a warranty claim. Call (831) 777-6412 and we’ll walk you through what your specific warranty covers.
Most installations in West Covina are scheduled within 1 to 3 weeks, depending on the season and material lead times. CertainTeed’s specialty lines like Presidential Shake and Highland Slate sometimes require longer material ordering windows. We give you a confirmed start date and a live trackable arrival time, so you always know when our crew shows up. For an exact timeline on your roof, call (831) 777-6412 for a free estimate.
The answer depends on the age of the roof and the condition of the underlayment, not just the shingles. If your CertainTeed shingles are failing in isolated areas and the underlayment is dry and intact, targeted repairs make sense and cost between $1,800 and $4,800 on a single slope. If the roof is approaching 15 to 18 years old, or you’re seeing granules in every gutter and curling across multiple slopes, replacement is the smarter money. We’ll tell you which one your roof actually needs, and we’ll put it in writing. Call (831) 777-6412 to schedule an inspection.
We use OEM CertainTeed shingles and underlayment on every install, because that’s what preserves your warranty and matches what’s already on your roof. For secondary components like pipe boots, ridge vents, and some flashing pieces, we’ll recommend aftermarket upgrades when they outperform the CertainTeed spec in West Covina’s UV and heat, and we’ll show you the cost difference before ordering anything. Everything is line-itemed on your written quote.
No. The written price we give you before work starts is the number on your invoice, unless we discover something like rotted decking that was hidden under the old shingles. If that happens, we show you photos, explain exactly what needs to change, and get your written approval before we do anything. That’s The Relay Visibility Guarantee, and it’s included with every job in West Covina. Every quote Dylan Pace writes is a promise: if the number changes, you hear from him first. Call (831) 777-6412 to get your quote in writing.
If you’re ready to install a CertainTeed roof in West Covina, or you want an honest read on whether your current one can wait, call Crestview Roofing Co West Covina at (831) 777-6412. We’ll schedule your free estimate, send you a written price, and show up when we say we will.
Written by Dylan Pace, Owner & Lead Roofer, Crestview Roofing Co West Covina at Crestview Roofing Co West Covina, serving West Covina and nearby areas.