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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
CertainTeed Roofing in Florence-Graham, CA | Barnwood Roofing
We’re an independent CertainTeed roofing contractor serving Florence-Graham’s post-war stucco bungalows and low-rise multi-family buildings. The one thing that makes our CertainTeed work different here: we know these tight blocks off Florence and Graham avenues, where shared parapets drain onto neighboring lots and unincorporated LA County rules govern every permit. If you need a CertainTeed roof patched, recoated, or honestly assessed, call (855) 382-1073 for a free estimate.
Why Florence-Graham Residents Choose Us for CertainTeed Service
Most roofs in Florence-Graham are repair-and-recoat work, not full replacements. That’s the reality of 1920s-to-1950s stucco bungalows with shallow-pitch composition roofs. We’ve torn off, patched, and recoated CertainTeed products on these blocks for years, and we know what fails on them here: UV-baked granule loss, separated parapet flashing, and blistered low-slope membrane seams. Ruben Calloway, our owner, learned the trade through the construction technology program at Chaffey College and spent years working roofs across the Inland Empire and providing CertainTeed repair in Walnut Park before starting Barnwood Roofing. He’ll tell you if a repair will hold. If a full replacement is the only sensible call, he’ll tell you that too, and explain exactly why.
Our position is simple: seven brands, one honest recommendation. We install and service products from GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, which means we’re not pushing CertainTeed because it’s the only brand we carry. We recommend CertainTeed when it’s the right material for your roof and your budget. We offer roof inspection as a standalone service, so you can get a professional assessment without any obligation to book repair or replacement. That’s how we’ve always worked in Florence-Graham. More on our CertainTeed sales & service approach.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Florence-Graham
- UV-baked granule loss on Landmark and three-tab shingles. The sun-baked inland South LA climate oxidizes CertainTeed asphalt surfaces fast. Field shingles here top out on mineral surface years before the nominal warranty life. You’ll see bare patches and granules in the gutters long before the roof leaks.
- Seam and blister failure on low-slope membrane. Near-flat and shallow-pitch sections with CertainTeed Flintlastic SA or built-up cap sheet don’t reveal problems until the first winter storm. Blisters form quietly through the dry season, then split open when rain hits.
- Wall-to-roof and parapet flashing separation. Heavy stucco walls are standard on Florence-Graham bungalows. Water sheds off parapets shared with the neighboring lot, and the flashing at those junctions fails where the shingles at the eave look perfectly fine.
- Dried-out sealant and exposed fasteners around vent boots. UV strips the mastic at the wall/roof junction and around pipe boots. Storm water wicks under the tabs, and the leak shows up on a ceiling far from where the roof actually failed.
- Recoating and patching of aged CertainTeed composition roofs. Most calls we get in Florence-Graham are for repair, not replacement. We patch and recoat what’s repairable, and we’ll tell you plainly when it’s past saving.
CertainTeed Service in Florence-Graham: What Local Conditions Mean for Your Equipment
The blocks off Florence and Graham avenues are packed with shallow-pitch and near-flat CertainTeed roofs that share parapet walls and drain onto the neighboring lot. That means a patch or recoated section here has to be sloped and detailed to send water somewhere legal on your own property. You can’t just seal a seam and call it done; the water has to go somewhere, and if it’s going onto your neighbor’s stucco wall, the county will flag it. The whole job is inspected under unincorporated LA County rules, not City of LA. That unincorporated-county status is a distinct wrinkle on every permit in ZIP 90001, and it changes how we detail parapets, drains, and scuppers on CertainTeed low-slope roofs in Florence-Graham. On one block off Florence Avenue, a homeowner called after a winter storm wet the ceiling of a rear bedroom. Our crew climbed up on a shallow-pitch CertainTeed composition roof on a 1940s stucco bungalow, found the wall-to-roof flashing separated where a shared parapet shed storm water toward the neighbor’s lot, and the seam on the low-slope rear section had blistered and failed. We re-detailed the parapet and wall flashing, patched the low-slope section with a reinforced membrane and cap sheet, and re-sealed the vent boots. That stopped the leak and sent runoff where it belongs under the county permit.
CertainTeed Models & Products We Service in Florence-Graham
We work on the CertainTeed products these 90001 roofs actually carry. That includes Landmark architectural shingles, XT 25 three-tab composition shingles, Flintlastic SA cap and base sheet for low-slope sections, and RoofRunner underlayment on recoats and patches. When we match an existing CertainTeed roof, we use genuine CertainTeed shingles and membranes. For underlayment, flashing, and fasteners, we use quality aftermarket products where they perform better in this sun-baked climate. We stock the common CertainTeed profiles and accessories for fast turnaround on Florence-Graham repairs, so you’re not waiting on a special order for a simple patch.
See the difference
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After
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AfterCertainTeed Service Pricing in Florence-Graham
What you’ll pay depends on what the roof actually needs. Tell me what the roof actually needs, then we’ll talk about what it costs. A simple vent boot reseal runs less than a hundred dollars. A low-slope patch with reinforced membrane and cap sheet typically runs $400 to $900, depending on how much of the section is compromised. Parapet and wall flashing re-detailing usually falls between $600 and $1,200 when it involves stucco cutting and new counterflashing. A full CertainTeed Landmark re-roof on a small Florence-Graham bungalow starts around $8,000 to $12,000, and the shared-parapet detailing adds cost most homeowners don’t anticipate. Every estimate is free and written line by line, so you see exactly where the money goes. Call (855) 382-1073 to schedule yours.
Serving Florence-Graham, CA — Our Local Coverage Area
We’re based in the Florence-Graham area and know this community well, and we also provide Huntington Park CertainTeed service. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Florence-Graham
My Florence-Graham bungalow has a near-flat CertainTeed roof that’s been patched many times – can you recoat or patch it instead of re-roofing?
Often, yes. We recoat and patch repairable CertainTeed low-slope roofs regularly in Florence-Graham, and we’ll recommend that if the underlying deck and membrane have life left. If the blisters and seam failures are widespread, a patch won’t buy you much time, and we’ll tell you that plainly. Call (855) 382-1073 and we’ll assess it honestly.
Does a roof on a Florence-Graham address pull a City of LA permit or an LA County permit?
LA County. Florence-Graham is unincorporated, so roofing permits, inspections, and code requirements come from Los Angeles County, not the City of LA. The same unincorporated rules apply to our South Gate CertainTeed service. We handle county permitting on every job, and our work passes county inspection before we call it done.
My neighbor’s CertainTeed roof and mine share a parapet wall and drain toward my lot – can a re-roof fix the way water sheds?
Yes, and this is one of the most common Florence-Graham roof problems we address. Shared parapets on adjacent bungalows and duplexes mean runoff from your neighbor’s roof can end up on your wall or roof. We can re-detail your side of the parapet and slope the new or patched membrane to send water to a legal drain on your own property. It’s all inspected under county rules, so the solution has to be code-compliant. Call (855) 382-1073 for a free look at how your roof sheds water.
Are CertainTeed architectural shingles or three-tab a better match for the small stucco bungalows in 90001?
For Florence-Graham’s small bungalows with shallow-pitch roofs, Landmark architectural shingles usually make more sense than XT 25 three-tab if you’re re-roofing. Architectural shingles hold up better to the inland sun’s UV and give you more years before granule loss becomes cosmetic. But if your roof has low-slope sections, Flintlastic SA membrane is the right call there, not shingles at all. We’ll match the product to the roof, not the other way around.
How fast does inland sun here dry out and crack a CertainTeed composition roof?
Faster than the warranty assumes. The dry, sun-baked climate off Florence and Graham avenues oxidizes CertainTeed asphalt surfaces hard, and homeowners regularly see granule loss and brittle tabs years before the nominal warranty life. Regular inspection catches it before it becomes a leak. Call (855) 382-1073 to schedule a roof inspection as a standalone service; no obligation to book repair or replacement.
Service Areas Near Florence-Graham
Beyond Florence-Graham, we work the surrounding South LA and Inland Empire communities, including Florence-Graham service area coverage, plus Huntington Park, Walnut Park, South Gate, and Bell. For homes further east, see our CertainTeed service in Idyllwild-Pine Cove page or, closer to downtown, our CertainTeed service in Echo Park page.
Book Your CertainTeed Service in Florence-Graham Today
If your CertainTeed roof is leaking, shedding water onto a neighbor’s lot, or just looking sun-baked, call us. We’ll climb up, assess it honestly, and give you a written line-item quote. Phone: (855) 382-1073.
Written by Ruben Calloway, Owner at Barnwood Roofing, serving Florence-Graham, CertainTeed in Willowbrook, and the surrounding South LA communities.