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 Roofing in Westminster, CA | Gable Roof Repair
CertainTeed roofing service in Westminster means something specific here, and it’s rarely what a generic website tells you. We’re an independent contractor, not a CertainTeed dealer or authorized installer, and we repair and replace CertainTeed roofs across the 92683, 92684, and 92685 ZIP codes every week. The pattern we keep seeing in Westminster: sound shingle fields leaking at patio-room addition tie-ins, not in the shingle itself. That’s the local problem most CertainTeed pages never mention, and it’s usually the first thing we check. Call (866) 650-8319 if you’re chasing a leak that keeps coming back.
Why Westminster Residents Choose Us for CertainTeed Service
Neil Drummond, our owner, grew up in Irvine’s Woodbridge neighborhood and spent three decades learning where residential roofs actually fail. He’ll tell you the roof doesn’t lie, the materials tell you exactly what went wrong and when. That mindset shapes how we approach every CertainTeed roof in Westminster.
We work with seven major shingle brands including CertainTeed, GAF, Owens Corning, IKO, Atlas, Tamko, and Boral. That matters because we’re not pushing one manufacturer’s system on a roof that needs something else. When a Westminster homeowner calls about a CertainTeed Landmark roof losing granules, we diagnose it as granule loss, not as an excuse to sell a full replacement. Repair when it makes sense, replace when it’s right. Our CertainTeed sales & service work covers the same three stages we offer every homeowner: inspection, repair, and replacement, handled by one company instead of three.
Inspection first, recommendation second. No one gets a replacement quote from us before we’ve actually looked at the roof.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Westminster
- Granule loss and UV chalking on Landmark and XT 25 shingles. Long, dry Southern California summers bake south- and west-facing slopes. Bare asphalt starts showing through, shingles get brittle, and the roof ages faster than it should. We see this constantly on 1960s tract homes throughout Westminster, especially on low-pitch roofs where water moves slower and heat sits longer.
- Wind-lifted or creased shingle tabs after Santa Ana events. Landmark shingles that weren’t fastened correctly at ridges, rakes, and gable ends lift when the dry offshore winds push through. A creased tab that doesn’t lay flat again is a future leak. We match the color, replace the damaged tabs, and check the starter course and fastening pattern while we’re up there.
- Seal-strip failure on older CertainTeed architectural shingles. Marine-layer moisture in the morning followed by afternoon thermal cycling means tabs never re-adhere properly. Wind gets under courses that should be sealed down. This is a repairable issue when caught early, but it requires knowing what a failed seal strip looks like versus a mechanical damage problem.
- Leaks at shingle-to-flat transitions and patio-room additions off Bolsa and Westminster Blvd. This is the Westminster signature problem. A perfectly good CertainTeed shingle field leaks because a flat or rolled low-slope section ties into it with questionable flashing. We chase these every month, and the fix is usually at the transition, not in the shingles.
- Flintlastic and rolled low-slope section failures on mid-century additions. Tar-and-gravel, rolled roofing, and patched flat sections show up constantly alongside standard asphalt shingle work on Westminster’s 1950s-70s housing stock. When the membrane cracks or the flashing pulls away, water finds the seam and travels inside along the framing.
CertainTeed Service in Westminster: What Local Conditions Mean for Your Equipment
Here’s the Westminster insight that changes how we approach CertainTeed roofs here, and it’s not something you’ll read on a generic roofing page. The city’s older tracts off Bolsa and Westminster Blvd are full of second-story and patio-room additions built onto flat or low-slope roofs with questionable flashing from day one. A homeowner calls us about a ceiling stain in a rental off Bolsa Ave in the Little Saigon area, and our tech traces it not to the CertainTeed Landmark shingle field but to a patio-room addition where rolled low-slope roofing met the shingle with a failed, under-flashed tie-in. We rebuilt that transition with proper flashing, matched Landmark shingles at the intersection, dried in the flat section, and stopped the leak without touching the shingle field. The roof doesn’t lie, the materials tell you exactly what went wrong and when. In Westminster, the addition does the lying on the roof’s behalf.
That’s why a CertainTeed inspection here always starts at the additions and transitions before we spend time on the shingle field itself. Coastal-influenced mild air, long dry spells, and Santa Ana winds degrade UV-exposed surfaces and dry out fascia, but the leak that finally shows up on the ceiling is often coming from a seam some contractor framed forty years ago and never flashed properly.
CertainTeed Models & Products We Service in Westminster
We work on the full CertainTeed residential lineup you’re likely to find on Westminster homes. Landmark architectural shingles top the list, they’re on more mid-century tracts and 1980s-90s reskinned roofs here than any other CertainTeed product. XT 25 three-tab shingles show up on older, budget-conscious roofs and sometimes on detached garages. Presidential Shake appears on higher-end remodels where a homeowner wanted deeper shadow lines and premium curb appeal. And Flintlastic modified bitumen covers the low-slope and flat sections, especially on those patio-room additions we keep mentioning.
For repairs that need color- and profile-matching, we source genuine CertainTeed components so the repair blends with the existing roof. For underlayment and flashing where the brand part adds nothing, we use quality aftermarket materials that do the job without the name markup. That’s our approach to parts across all seven brands we service: match the visible stuff, choose the structural stuff on performance.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in Westminster
CertainTeed shingle repair in Westminster typically runs $350 to $700 for a small leak repair that involves replacing a few tabs and resealing the area. Flashing repair at a shingle-to-flat transition, the common Westminster problem, runs $500 to $1,200 depending on how much of the transition needs rebuilding and whether we’re matching Landmark shingles across the intersection. A full CertainTeed Landmark roof replacement on a typical Westminster single-story tract home runs $9,000 to $16,500, with the final figure set by square footage, tear-off weight, decking condition, and whether there’s a patio-room flat section that needs new Flintlastic at the same time.
Every estimate is free and written line-by-line. We’ll walk the roof, show you photos of what’s actually failing, and price the repair separately from any replacement option so you can decide with real numbers in front of you. Call (866) 650-8319 to schedule yours.
Serving Westminster, CA — Our Local Coverage Area
We’re based in the Westminster area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Westminster
Because the tie-in was almost certainly under-flashed when the addition was built. Post-WWII and 1970s tract homes throughout Westminster were added onto over the decades, and flat or low-slope sections meeting shingle at a transition require a specific flashing detail that was frequently skipped or done wrong. Water hits the seam, wicks under the shingle edge, and travels along framing until it shows up as a ceiling stain. The fix is rebuilding the transition, not replacing shingles. Call (866) 650-8319 and we’ll trace it.
Mostly, yes. Long dry spells with intense UV exposure, especially on south- and west-facing slopes, accelerate granule loss on Landmark shingles once they reach the back half of their service life. Marine-layer moisture in the mornings adds thermal cycling that stresses the asphalt. Bare asphalt showing through is the tell. Granule loss isn’t reversible, but early detection tells us whether you have years left or whether repair versus replacement is the real conversation.
Yes, lifted shingle tabs at ridges, rakes, and gable ends are repairable when the shingle itself isn’t torn or creased beyond reuse. The typical cause is light fastening or a missed starter course detail, not the shingle failing. We reset and re-secure the tabs, check the fastening pattern across the affected slope, and replace any tabs that can’t lay flat again. Faster to fix before winter rains arrive.
Yes. We source genuine CertainTeed Landmark and XT 25 shingles in the current production color closest to your existing roof, and we pull from weathered areas to blend where the color has shifted. CertainTeed color lines like Moire Black, Heather Blend, and Weathered Wood are common on Westminster homes, and we keep a local stock of the most frequently needed colors for faster turnaround. Exact match depends on the roof’s age and fading, and we’ll be honest if a patch will show.
We do, yes. Many of the properties we service off Bolsa Ave and Westminster Blvd are owned by first-generation families and immigrant landlords managing aging rentals or multi-generational homes. We respect the need for clear, patient communication, real material options, and value-driven repair recommendations over replacement pressure. If a homeowner or landlord prefers Vietnamese, we’ll work through that together, no problem. Call (866) 650-8319 and we’ll set up a time to look at the roof.
Service Areas Near Westminster
Our Westminster crews regularly cross into the surrounding Orange County cities. We handle CertainTeed roofs in Anaheim to the north, Garden Grove and Santa Ana to the east, and Fountain Valley and Huntington Beach to the south and west. Down toward the 405 corridor and the Inland Empire side, our CertainTeed service extends to Ladera Ranch when the job needs our crews. Your roof is in the Westminster service area and we know these streets.
Book Your CertainTeed Service in Westminster Today
Chasing a roof leak that keeps coming back, or watching granules pile up in the gutter after every Santa Ana event? Don’t guess. Call (866) 650-8319 for a free estimate. We’ll get on the roof, find the actual point of failure, and give you a written line-item price before any work starts.
Written by Neil Drummond, Owner at Gable Roof Repair, serving Westminster and surrounding Orange County communities.