Metal roofing
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Why Bellflower Homeowners Choose CertainTeed Roofing
We’re Spartan Roof Repair and we provide independent CertainTeed roofing service across Bellflower’s 90706 and 90707 zip codes. This means we install, repair, and inspect CertainTeed shingle and membrane systems without a dealer agreement pushing us toward one product line. What sets our CertainTeed work apart is that we know how Landmark, Presidential, and XT 25 shingles actually age on Bellflower’s hot inland-edge roofs, not just how they look in a brochure. If you need a straight answer about your CertainTeed roof, call (855) 382-3237.

CertainTeed has been manufacturing roofing materials since 1904, and their Landmark architectural shingle is one of the most-installed products on American roofs. Here in Bellflower, the local housing stock tells a specific story: mostly 1940s-1970s single-story tract and ranch homes with low-pitch gable and hip roofs. Those roofs carry decades of sun exposure. Shingles cook, oxidize, and crack faster here than in coastal neighborhoods ten miles west. We’ve repaired and replaced enough CertainTeed systems in Bellflower—and provided CertainTeed service in Huntington Beach—to know exactly what that heat does to each product line. As an independent contractor, we’re not authorized, sponsored, or warranty-backed by CertainTeed, and we say that plainly because it means our recommendations are based on what your roof actually needs.
Why Trust Spartan Roof Repair for Your CertainTeed Roofing?
Our technicians work exclusively on roofs. That focus is the difference between a crew that reads CertainTeed’s published installation details and a generalist who wings it. CertainTeed’s warranty coverage depends heavily on correct installation: the right headlap on underlayment, the right fastener pattern, the right starter strip. We follow those specs because a warranty that’s still valid after year five is worth more than a cheap install that voids it by year two.
Brent Calloway, our owner, learned roofing fundamentals the right way, on mock structures with real materials in the construction technology program at Orange Coast College. He’s spent over two decades on roofs across the Gateway Cities, southeast LA County, and Costa Mesa CertainTeed service areas. That experience shows up in the details, like knowing that a Bellflower roof with two existing shingle layers needs tear-off before new CertainTeed goes down, not a third overlay that bakes the lower layers into crumbles. We use genuine CertainTeed accessory components where color match and warranty documentation matter, and quality aftermarket flashing and boots where they don’t. Your roof doesn’t need a speech. It needs a fix.
Styles & brands we work with






Common CertainTeed Roofing Problems We Fix in Bellflower
Here are the specific failure modes we see most often on CertainTeed roofs in Bellflower. These aren’t generic roofing complaints. They’re tied to particular product lines and to what our local climate does to them.
- Landmark architectural shingles losing granules and curling at the edges. On south- and west-facing slopes in Bellflower, inland heat cycling bakes the exposed tab edges. The asphalt oxidizes, the granules loosen, and the edges curl upward. This shows up years earlier than the warranty curve predicts because the heat here is relentless, not occasional. If it’s isolated, we patch. If it covers a full slope or two, replacement is the honest call.
- XT 25 three-tab shingles cracking along the sealant strip. These are common on older Bellflower tract roofs. The sealant strip on XT 25s is thin from the factory, and decades of thermal expansion and contraction crack the shingle right along that line and at the fastener points. Once the seal breaks, wind gets under the tabs and tears them off. We see this constantly on 1950s and 1960s ranch homes around town.
- Flintlastic SA low-slope membrane peeling at lap seams and wall terminations. Bellflower homes often have flat or low-slope porch and patio tie-ins done in Flintlastic SA self-adhered modified bitumen. When the original installer didn’t prime the substrate or mechanically fasten the edges, the laps peel back. Water gets in at the wall termination and tracks sideways into the ceiling. We re-prime, re-adhere, and mechanically fasten those edges on every repair.
- Split or blistered shingles around vent boots and plumbing stacks. This is a penetration failure. The shingles around a pipe boot or valley metal split and blister when the underlayment wasn’t lapped to the manufacturer’s specified headlap. The shingle can’t hold water out if what’s underneath it is wrong. We find this on CertainTeed roofs installed by crews who skipped the detail work.
- Presidential Shake and Presidential TL edge cupping on steep gables. The luxury laminated lines are thick and heavy, but Bellflower’s intense sun still works on the edges. We see edge cupping and granule shedding on steep south-facing gables, especially near the ridge. Repairs here require matching the heavy laminate profile, which is why we keep Presidential color-match samples on hand for Bellflower jobs.
CertainTeed Parts & Our Repair-vs-Replace Approach
We use genuine CertainTeed parts where they matter: matching hip-and-ridge, starter strips, and CertainTeed’s specified underlayment. Color match on a repaired slope is not negotiable, and warranty documentation depends on using the right accessory components. For flashing, pipe boots, and valley metal, we use quality aftermarket materials that meet or exceed the original spec. There’s no performance gain in paying a premium for a CertainTeed-branded pipe boot when a commercial-grade lead boot does the same job better.
The repair-versus-replace decision is straightforward. On a Landmark roof with isolated storm damage or one failed slope, we patch, re-flash, and document the repair. Once granule loss and edge curling cover more than a slope or two, or the decking underneath is compromised, replacement is the only honest answer. We’ll tell you which one applies to your roof without hedging. Call (855) 382-3237 if you want that assessment from someone who works on CertainTeed systems every week.
See the difference
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After
Before
After
Before
AfterOur CertainTeed Service Process – Step by Step
- 1
Diagnosis. We inspect the entire CertainTeed surface, not just the spot you flagged. That means checking the underlayment laps at penetrations, the sealant strips on field shingles, and the edge terminations on any Flintlastic SA low-slope sections. On older Bellflower roofs we also check for multiple existing layers that change the repair strategy.
- 2
Repair or Install. If it’s a repair, we remove the damaged CertainTeed shingles carefully so we don’t compromise the surrounding field. We install matching CertainTeed product or a documented color match, set nails to the manufacturer’s specified pattern, and re-lap underlayment correctly. If it’s a full replacement, we tear off old layers first, because Bellflower’s older homes often carry two or three accumulated layers that can’t support a new CertainTeed system properly.
- 3
Test. We water-test repairs where possible and verify nail placement, lap integrity, and flashing seal on every job. On leak repairs we run a hose test on the repaired area and watch the underlayment path before we call it done.
- 4
Warranty Documentation. We provide a written record of what was replaced, what products were used, and how the work was performed. That documentation matters if you ever need to make a warranty claim on the CertainTeed product itself.
CertainTeed Products We Service & Install in Bellflower
We work on the full range of CertainTeed roofing systems you’ll find on Bellflower homes. That includes Landmark architectural shingles, the workhorse product on most mid-century tract roofs here. It includes XT 25 three-tab shingles on the older homes. It includes Presidential Shake and Presidential TL luxury laminated shingles on higher-end remodels. And it includes Flintlastic SA self-adhered modified bitumen and Diamond Deck underlayment on low-slope porch and patio sections. We keep Landmark color-match samples and CertainTeed starter and ridge stock in local inventory so common Bellflower repairs don’t stall waiting on parts.

We Also Service These Brands
Spartan Roof Repair works with seven major roofing manufacturers, including GAF and Owens Corning alongside CertainTeed, and handles CertainTeed in Newport Beach as well. That breadth means we never have to force a CertainTeed product into a situation where another brand fits better. Seven brands, three services, one trade: roofing.
FAQs – CertainTeed Roofing Service in Bellflower
No, we are an independent CertainTeed service provider in Bellflower, not an authorized dealer or installer. We are not sponsored, endorsed, or warranty-backed by CertainTeed. We think that independence works in your favor: our recommendations are driven by what the roof needs, not by a dealer agreement or quota.
Replacing damaged shingles with a different CertainTeed product line generally does not void the manufacturer’s warranty, but you should document the repair and keep records of the products used. The warranty concern is usually about improper installation, not about mixing CertainTeed lines. We provide written documentation on every repair so you have a defensible record if a warranty question comes up later. Call (855) 382-3237 and we’ll walk you through what applies to your specific roof.
Some granule loss is normal, especially in the first year after installation. But on Bellflower roofs with south- or west-facing slopes, granule loss that exposes the asphalt mat or comes with edge curling is heat-related premature aging, not normal wear. When we see that pattern, we check whether it’s isolated to one slope or spreading. If it’s spreading, you’re looking at replacement sooner than the warranty would suggest. We’ll tell you which category yours falls into.
Yes, we repair Flintlastic SA lap seams and wall terminations on Bellflower homes and offer CertainTeed repair in Fountain Valley. The typical cause is an original install that skipped priming or mechanical fastening at the edge. We re-prime the contact surface, re-adhere the membrane, and mechanically fasten the termination so it doesn’t pull apart again. A proper repair stops the leak path at the source instead of just caulking over it. Call (855) 382-3237 for a free estimate on that repair.
We use genuine CertainTeed starter strips and matching hip-and-ridge components on CertainTeed installs and repairs. These accessories affect both the finished look and the warranty documentation. Using the right starter strip also prevents wind-uplift failures at the eave, which matters on Bellflower roofs during Santa Ana wind events.
CertainTeed roofing service in Bellflower varies by scope: isolated shingle or flashing repairs typically run a few hundred dollars, full Landmark architectural replacement on a standard 1950s ranch runs in the $12,000 to $22,000 range depending on tear-off layers, decking condition, and slope count. Presidential and Presidential TL luxury installs run higher. The only way to get a real number is an inspection. Call (855) 382-3237 to schedule a free estimate, and we’ll give you a written line-item quote, not a ballpark guess.
No, a leaking vent boot is a flashing component failure, not a shingle defect. CertainTeed’s shingle warranty covers manufacturing defects in the shingle itself, not the flashing, the underlayment, or the workmanship around a penetration. The good news is a vent boot replacement is a relatively small repair. We install new lead boots and re-lap the surrounding CertainTeed shingles correctly, which fixes the leak at its actual source. Call (855) 382-3237 for a quote.
One field example from Bellflower: a homeowner called about a ceiling stain that only appeared after winter rain. Our tech traced it to a split XT 25 three-tab shingle just uphill of a plumbing vent boot where the sealant strip had failed. We replaced the damaged shingles with Landmark to match the newer rear slope, installed a new lead boot with correctly lapped underlayment, and re-flashed the sidewall termination that was letting water track in. Two storms later, the stain hadn’t returned, and the homeowner had a documented repair for their records.
Written by Brent Calloway, Owner at Spartan Roof Repair, serving Bellflower and the Gateway Cities.