Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Why Los Angeles Homeowners Choose CertainTeed Construction
Rowan Construction Group provides independent CertainTeed roofing and siding service across Los Angeles, from full Landmark roof replacements in Sherman Oaks to Presidential Shake repairs in Pacific Palisades. For homeowners looking for Certainteed service in Los Angeles, our experience spans the full metro area. We are not a CertainTeed dealer and we are not authorized by the manufacturer. What we are is a contractor that has installed and repaired CertainTeed products in Los Angeles for over a decade, and we know exactly which product lines hold up to this city’s sun, salt air, and seismic movement, and which ones need extra attention. Call (470) 298-9650 for a written price before any work starts.
CertainTeed is one of the largest building material manufacturers in North America, and Los Angeles is one of the toughest testing grounds for any exterior product. The combination of intense UV exposure, coastal salt air in neighborhoods from Venice to San Pedro, thermal cycling in the Valley, and the occasional seismic event means a roofing product that performs well in Ohio might fail early in Los Angeles. We have learned this the hard way, on actual jobs, across thousands of projects since 2007. This page is the record of what we know about CertainTeed products in this specific city.
Key Takeaways
- We are an independent CertainTeed service provider in Los Angeles, not a manufacturer-authorized dealer
- We service all major CertainTeed roof lines: Landmark, Presidential Shake, Grand Manor, and Cedar Impressions siding
- CertainTeed Landmark roof replacement in Los Angeles runs $9,440 to $23,600; tile repair runs $710 to $2,950
- We use genuine CertainTeed components when available and tell you honestly when a repair no longer makes sense
- Written price before work starts, signed change orders only, documented photo record on every visit
Why Trust Rowan Construction Group for Your CertainTeed Construction?
Our crews have spent years working on CertainTeed products in Los Angeles conditions. We can look at a Landmark shingle in Encino and tell you whether the granule loss is normal aging or a manufacturing defect. We can explain why Cedar Impressions siding behaves differently in Santa Monica fog than it does in Woodland Hills heat. That diagnostic precision comes from volume and repetition, and it’s the difference between a contractor who guesses and one who knows. Grant Rowan, our owner, trained in construction technology at Los Angeles Trade-Technical College and has spent nearly two decades on residential and light commercial projects across Los Angeles County. The work he gets called back for most is the kind where something failed and someone needs an honest answer about why.
We also do something most contractors in Los Angeles won’t: we put the number in writing before anyone picks up a tool. Clause 1 of the Haven Standard is the whole point of our business. You get a flat price with a written scope and a written warranty. No work proceeds on a change until you sign a change order, and that discipline is why our projects finish within a few percent of the agreed cost. On a CertainTeed roof replacement or tile repair, that means no surprises when the underlayment turns out worse than expected. You’ll know the cost of addressing it before we touch it, because the change order system demands it.
Common CertainTeed Construction Problems We Fix in Los Angeles

CertainTeed makes good products. But every building material has failure modes, and Los Angeles does a remarkable job of finding them. Here are the five issues we see most often.
- Cracking and fading of Presidential Shake in coastal sun and salt air. The Presidential Shake line is a luxury laminated shingle with a thick, dimensional profile. It looks great on larger homes in the Palisades and Malibu, but the salt air and relentless UV exposure in those coastal zones accelerates surface degradation. We see hairline cracks forming along the shadow lines, and the granule color fading unevenly. It’s not a manufacturing defect; it’s the environment. The fix is often localized replacement with matching shingles before the cracking propagates.
- Warping and lifting of Cedar Impressions siding from moisture intrusion. Cedar Impressions is a polymer shake and shingle siding product designed to mimic cedar without the maintenance. In Los Angeles, the problem isn’t rot; it’s moisture getting behind the siding through improperly flashed windows or missing house wrap. When water sits between the siding and the substrate, the panels warp and lift at the edges. We find this most often in hillside neighborhoods like Mount Washington and Echo Park where wind-driven rain hits the siding at odd angles.
- Granule loss and brittleness on older Landmark shingles. The Landmark series is CertainTeed’s workhorse architectural shingle. In Los Angeles, especially in the San Fernando Valley where summer roof temperatures regularly exceed 140 degrees, older Landmark shingles lose granules and become brittle. If you run your hand over a Landmark roof in Northridge or Reseda and come back with granules, the shingles are past the midpoint of their service life. Granule loss isn’t just cosmetic; it means the asphalt beneath is exposed to UV and the shingle will fail sooner rather than later.
- Improper nailing patterns causing blow-offs in high wind zones. CertainTeed publishes specific nailing patterns for every product line, and high-wind installations require more fasteners. We see blow-offs in neighborhoods along the Santa Ana wind corridors: Porter Ranch, Granada Hills, and parts of the foothills. When a shingle blows off, it is almost always because the original installer used four nails instead of six, or placed them outside the nailing strip. On a CertainTeed repair, we correct the nailing pattern on every shingle we touch, and we inspect the surrounding field to identify other shingles that were installed wrong.
- Underlayment failure beneath tile roofs leading to hidden leaks. CertainTeed tile (both flat and S-tile profiles) is durable; the tile itself rarely fails. What fails is the underlayment beneath it, particularly on homes built before modern self-adhered membranes were standard. In Los Angeles, the thermal cycling between hot days and cool nights breaks down old felt underlayment, and by the time you see a ceiling stain in Silver Lake, the water has been getting in for months. The repair is rarely just a tile replacement; it is stripping the field, replacing the underlayment, and resetting the tile.
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AfterCertainTeed Parts & Our Repair-vs-Replace Approach
We use genuine CertainTeed components when they are available: matching shingles, vented ridge caps, Starter Strip, and the correct underlayment specified for the product line. Using OEM parts protects your warranty eligibility and ensures color match and dimensional consistency. But there are situations where OEM is the wrong answer. CertainTeed discontinues colors and product lines periodically, and when a discontinued shingle is only available through third-party resellers at inflated prices, we will tell you that. In those cases, we source quality aftermarket equivalents that meet or exceed the original spec. We will never quietly substitute a cheaper product and bill you as if it’s OEM. The photo record we provide on every visit includes close-up shots of whatever materials we install.
The repair-versus-replace decision is where honesty matters most. A cracked Grand Manor shingle is a repair. A Landmark roof with widespread granule loss and visible brittleness is a replacement waiting to happen, and repeated patches will cost you more in labor over five years than one full replacement now. We will give you a written price for both scenarios and let you decide. Call (470) 298-9650 if you want a straight answer on which way to go.
Our CertainTeed Service Process - Step by Step

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Diagnosis. We start with a physical inspection. For a CertainTeed roof, that means walking the field, checking the nailing pattern on exposed edges, examining the condition of the underlayment at penetrations, and documenting everything with photos. You get the photo record whether or not you hire us. If it’s a Cedar Impressions siding issue, we check the flashing details and the house wrap before we touch a single panel.
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Written price. Before any work begins, you receive a flat written price with a written scope. For a CertainTeed Landmark roof replacement, that scope specifies the shingle series (Landmark, Landmark Pro, or Landmark Premium), the underlayment type, the ventilation plan, the Starter Strip, the ridge cap, and the labor. Every line item is priced. No allowances, no “to be determined later.”
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Repair or installation. Our crews use CertainTeed’s published installation specs: the correct nail count, the correct nail placement, the correct overlap. If a change is needed (and on an old Los Angeles roof, something always surfaces), you get a written change order first. You sign it, then we proceed. No exceptions.
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Testing and documentation. After the repair or install, we test the work. On a tile repair, that means water testing the area. On a full replacement, we inspect the nailing pattern, the flashing details, and the ridge ventilation. You receive a written warranty on our work, a photo record of the finished job, and the notes from our inspection.
CertainTeed Products We Service & Install in Los Angeles
We service and install the full range of CertainTeed roofing and siding products that are common in Los Angeles and nearby communities, including Certainteed repair in Long Beach:
- Presidential Shake: Luxury laminated shingles, common on larger homes in Brentwood, Pacific Palisades, and the hills
- Landmark Series: Architectural shingles, the most common CertainTeed product we see across Los Angeles
- Grand Manor: Heavyweight laminated shingle with a distinctive shadow line
- Cedar Impressions: Polymer shake and shingle siding, often found on coastal and hillside homes
- CertainTeed Tile: Flat and S-tile profiles, with the underlayment systems required for proper installation
- Membrane and underlayment systems: CertainTeed’s self-adhered membranes and synthetic underlayments
We keep common CertainTeed components in stock for fast turnaround: Starter Strip, ridge caps, matching Landmark shingles in Los Angeles’ most common colors, and the underlayment products we trust for tile and shingle applications.
We Also Service These Brands

CertainTeed is not the only manufacturer we work with. Our crews install and service roofing and exterior products from GAF and Owens Corning, and our broader construction practice covers cabinetry from KraftMaid, countertops from Cambria and Silestone, and plumbing fixtures from Kohler. The depth matters because it keeps our pricing honest. We are not tied to a single brand’s installer program, so our recommendation is based on what is right for your Los Angeles home, not what we are obligated to sell.
FAQs - CertainTeed Construction Service in Los Angeles
No. We are an independent CertainTeed service provider in Los Angeles. We are not a CertainTeed dealer, and we do not claim manufacturer authorization. What we offer is a decade-plus of hands-on experience installing and repairing CertainTeed products in this city. We believe that matters more than a dealer badge, but you should know the distinction. If a manufacturer’s authorized status matters for your project, we will tell you so, and we will help you find a dealer who fits.
Yes, whenever they are available and make sense. We use genuine CertainTeed shingles, Starter Strip, ridge caps, and underlayment to preserve your warranty eligibility and ensure a correct color and dimensional match. When a CertainTeed product is discontinued or unavailable at a reasonable price, we source quality aftermarket equivalents that meet or exceed the original specification, and we tell you before we install anything. Call (470) 298-9650 if you want to discuss which parts route is right for your repair.
Most CertainTeed repairs in Los Angeles are completed in a single day. A tile repair, a shingle replacement, or a Cedar Impressions siding repair does not require extended time on site. A full CertainTeed Landmark roof replacement typically runs three to five working days depending on the size and complexity of the roof, the number of layers we need to strip, and whether the underlayment needs full replacement. We will give you a written schedule with the written price, and we will stick to it.
We service and install the CertainTeed product lines most common in Los Angeles and Orange County: Presidential Shake, Landmark Series (including Landmark Pro and Landmark Premium), Grand Manor, Cedar Impressions siding, and CertainTeed tile in flat and S-tile profiles. That includes Certainteed in Anaheim and surrounding areas. We also work with CertainTeed membrane and underlayment systems. If you have a different CertainTeed product, call (470) 298-9650 and we will tell you honestly whether it is something we take on.
It depends on what was done and who did it. Using non-OEM parts on a warranted CertainTeed roof can affect the manufacturer’s warranty on the affected area. Using an unqualified contractor who installs incorrectly will also create warranty problems. Our approach is designed to preserve your warranty wherever possible: we use OEM components when available, we follow CertainTeed’s published installation specs, and we document every step with photos. If you have a warranty claim, that documentation is your evidence. We cannot guarantee CertainTeed will honor a claim, but we can guarantee we will not be the reason they refuse one.
CertainTeed Landmark roof replacement in Los Angeles runs $9,440 to $23,600 depending on roof size, tear-off requirements, and underlayment condition. CertainTeed tile roof repair runs $710 to $2,950. CertainTeed Presidential Shake installation runs $17,700 to $47,200. Here is the breakdown:
| CertainTeed Service | Los Angeles Price Range |
|---|---|
| CertainTeed Landmark Roof Replacement | $9,440 - $23,600 |
| CertainTeed Tile Roof Repair | $710 - $2,950 |
| CertainTeed Presidential Shake Installation | $17,700 - $47,200 |
For an exact written price on your specific CertainTeed project in Los Angeles, call (470) 298-9650. The estimate is free, and it will be a flat number with a written scope, not a range that floats after the contract is signed.
No, and you would not want to. Presidential Shake is a laminated architectural shingle with a thick profile and a distinctive shadow line. Standard 3-tab shingles are flat and thin. The two products have different exposure dimensions, different profiles, and different wind ratings. Mixing them on a visible roof plane looks wrong immediately, and the dimensional mismatch creates a water channel at the transition. If a portion of your Presidential Shake roof needs replacement, match it with Presidential Shake. If a previous contractor mixed the two, call (470) 298-9650 and we will give you a written price to correct the transition properly.
Warping and lifting on Cedar Impressions panels is almost always a moisture intrusion problem, not a product failure. Water is getting behind the siding, usually through a window or door flashing detail, a failed corner trim, or missing house wrap. Wind-driven rain in Los Angeles hillside neighborhoods finds these entry points fast. The fix is to find the water entry point, correct the flashing or wrap, and then replace the warped panels. If you just replace the warped panels without fixing the water entry, the new panels will warp after the next wet winter. We find and fix the source first. Call (470) 298-9650 if you want us to trace it.
Usually not. Cracked Grand Manor shingles on an otherwise sound roof are a localized repair. We remove the damaged shingles, check the underlayment beneath them, and install matching replacements. The exceptions: if the cracking is widespread across multiple roof planes, or if the underlayment beneath the cracked shingles shows signs of extended water exposure, or if the roof is near the end of its service life anyway. We will tell you which situation you are in. Call (470) 298-9650 and we will give you a written price for both the repair and the replacement, and you decide.
No. Our workmanship warranty is separate from CertainTeed’s product warranty. CertainTeed warrants the product against manufacturing defects; we warrant our installation and repair work. If our repair fails because of a product defect, that is between you and CertainTeed, and we will provide the documentation to support your claim. If our repair fails because of our workmanship, our 365-Day Done Right Promise applies: if it is not done right, we make it right. That is backed by the Haven Standard, not a handshake, and it is printed on every contract we write in Los Angeles.
Proper roof ventilation is not optional in Los Angeles. An unventilated attic in the San Fernando Valley can hit 150 degrees in August, and that heat bakes the underside of your CertainTeed shingles, accelerating granule loss and shortening the roof’s life. If we find a CertainTeed roof with insufficient ventilation, we do not just replace shingles and walk away. We calculate the required intake and exhaust ventilation for your roof’s square footage, we add ridge vents or box vents as needed, and we price it all in the written scope. Sometimes the ventilation work is a small line item; sometimes it requires reframing soffits. Either way, you will see the number before we start. Call (470) 298-9650 to have your ventilation evaluated.
Book Your CertainTeed Service in Los Angeles, CA

If you have a CertainTeed roof or siding problem in Los Angeles or need Certainteed service in Santa Ana, call (470) 298-9650. We will schedule an inspection, give you a written price before any work starts, and deliver a documented photo record of whatever we find. No pressure, no urgency tactics. Just a number in writing, a scope that says what it means, and a crew that knows CertainTeed products in this city better than anyone who has not spent a decade on these roofs.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Los Angeles since 2007. Measure twice, say it once, show your work.







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