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CertainTeed Roofing in Florence-Graham, CA | Weathervane Roof Repair
CertainTeed roofing service in Florence-Graham typically runs from a focused shingle repair around $400 up to a full Landmark re-roof at $9,000 – $14,000, depending on deck condition and whether that rear addition needs structural work. Before anyone quotes you, the roof has to be opened up and the framing checked, because what hides under the old gravel on these 1940s bungalows usually changes the whole job. We’re Weathervane Roof Repair, an independent CertainTeed service provider working across Florence-Graham’s 90001, and we start every job with an inspection, not a sales pitch. Call (877) 755-4274 for a free estimate.

Why Florence-Graham Residents Choose Us for CertainTeed Service
We’ve torn off and re-roofed enough CertainTeed Landmark and XT 25 roofs on these tight-lot Florence-Graham bungalows to know exactly how the shingles age under basin UV and how their sealant strips behave on low-slope patched additions. That’s not a brochure line. It’s what the deck looks like when we pull the old tabs off. Our founder, Gil Tanner, grew up in the Montrose area of Glendale, learned the trade through GCC’s construction technology program, and spent two decades working flat torch-down decks and clay tile in the foothills before focusing on roof-only work. We carry that same repair-first mindset into every Florence-Graham job. We’re an independent CertainTeed service provider, not authorized or warranty-endorsed by the manufacturer. We buy and install their product on the merits, and we match it with OEM-accessory lines like CertainTeed starter, hip-and-ridge, and underlayment. For the broader picture of our CertainTeed sales & service approach, that page explains how we work across the brand’s full product range.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in Florence-Graham
- Sealant strips baked free by basin UV. CertainTeed Landmark and XT 25 both rely on an asphalt sealant strip to lock the tab down. On south- and west-facing slopes in Florence-Graham, where dry summer sun sits on the roof for months with no marine layer relief, that strip dries out and loses grip years before the shingle mat fails. You get loose tabs that lift in the first winter wind, and a roof that looks ten years older than it is.
- Granule loss and surface cracking on low-pitch planes. The post-war bungalows here run shallow roof pitches, which means water moves slower and sun hits flatter. CertainTeed shingles on those planes shed granules into the gutters and develop hairline cracks in the asphalt, especially along the rear addition transitions where heat builds against the stucco walls.
- Wind and rain lifting shingles on rear additions. Florence-Graham homes are almost all 1920s – 1950s builds with later room additions patched onto the back. When those additions were roofed, the CertainTeed courses were often run over original low-slope tar-and-gravel with little to no slope. Water backs under the tabs, and the first strong winter storm peels them up.
- Failed flashings at tight lot-line walls and vent boots. Near-zero lot lines mean the neighbor’s wall is sometimes inches from the roof edge. Flashings there take decades of runoff, and the metal rusts through or pulls away. We see staining on the ceiling before anyone gets on the roof, and the leak is almost always a flashing failure, not a shingle failure.
- Sagging and rot at the rear addition framing. This is the one we talk about before quoting. Look for the telltale sag along the rear wall on these 1940s stucco bungalows. Original 2×4 rafters often carry a later flat-roof room addition, so what looks like a simple CertainTeed re-roof can turn into a structural repair once the old gravel is off. We flag it during the inspection and price it honestly.
CertainTeed Service in Florence-Graham: What Local Conditions Mean for Your Equipment
Florence-Graham sits unincorporated, inside LA County, and that fact colors every CertainTeed roof we install here. When you re-roof a house two blocks over inside City of Los Angeles limits, the permit path and inspection schedule belong to LADBS. In Florence-Graham’s 90001, the same CertainTeed Landmark job goes through LA County Public Works. That’s a different paperwork process, different inspector availability, and a different set of field requirements for decking, fasteners, and underlayment verification. Gil’s signature line on this: “Tell me what the roof is actually doing, and I’ll tell you what it actually needs.” What the roof is usually doing here is carrying a patched flat section someone added in the 1970s, framed onto 2×4 rafters that were never sized for it. We’ve seen it enough on these tight-lot streets that we walk every Florence-Graham re-roof looking for the sag line first, because if we don’t catch it before the shingles go down, the new CertainTeed roof inherits a structural problem it can’t fix. And when we do catch it, we tell you, because a $6,000 re-roof you don’t need is a $6,000 mistake we won’t sell.
CertainTeed Models & Products We Service in Florence-Graham
We service and install the Huntington Park CertainTeed service lines that actually make sense on Florence-Graham housing stock. CertainTeed Landmark is our most-recommended architectural laminated shingle for these bungalows, it handles the shallow pitches better than a basic 3-tab and holds its sealant strip longer under basin sun. CertainTeed Landmark PRO gives you the heavier mat and better wind performance if the roof gets full afternoon exposure. For the low-slope rear additions and patched flat sections, we use Flintlastic SA self-adhered modified bitumen, because shingles were never designed for near-dead-level surfaces. We match every job with CertainTeed starter, hip-and-ridge, and underlayment rather than mixing in generic aftermarket brands, and we stock the common color runs locally so a Florence-Graham repair doesn’t wait on a distributor order from the Valley.
See the difference
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After
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Before
AfterCertainTeed Service Pricing in Florence-Graham
Here’s what CertainTeed roofing work runs in Florence-Graham:
| Service | Typical Range |
|---|---|
| Shingle repair (loose tabs, sealant strip failure) | $400 – $850 |
| Flashing repair or replacement at lot-line walls | $600 – $1,200 |
| Full Landmark re-roof, small bungalow | $9,000 – $14,000 |
| Decking repair or replacement during re-roof | $60 – $120 per sheet |
| Flintlastic SA flat section re-roof | $5 – $8 per square foot |
The gap between a repair and a full replacement comes down to one thing: what the deck and framing look like once the old roof is off. Our free estimate includes an inspection and a written line-item quote. For a job where we need to pull a section to check the deck, we’ll walk you through that before we quote. Call (877) 755-4274 for an exact number on your Florence-Graham roof.
Serving Florence-Graham, CA — Our Local Coverage Area
We’re based in the Florence-Graham area and also provide CertainTeed in Willowbrook, so we 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 Florence-Graham
No, you need an LA County Public Works permit, not a City of LA permit. Florence-Graham is unincorporated county land, so every CertainTeed re-roof here goes through County Public Works for permitting and inspection, unlike our South Gate CertainTeed service. The path and schedule differ from a job inside city limits, and we handle the paperwork end to end so you don’t have to walk it through the County building yourself.
No. A CertainTeed re-roof covers the roofing assembly, not the framing under it. If the rear addition was framed onto original 2×4 rafters decades ago and now sags, the rafters need to be sistered or braced first, otherwise the new roof sits on the same failing structure. We check for this on every Florence-Graham tear-off, and we’ll tell you honestly if the structural repair has to happen before the shingles go down. Call (877) 755-4274 to have us take a look before anyone gives you a roofing-only quote.
For most Florence-Graham roofs, yes. Landmark’s laminated construction and heavier mat hold up better on the shallow pitches and under the basin sun that bakes these bungalows. XT 25 was a good 3-tab for its era, but its sealant strips dry out sooner under this UV load, and the tabs lift years before the shingle wears out. The price difference on a small bungalow is modest compared to replacing a failed 3-tab roof a decade earlier. Call (877) 755-4274 and we’ll price both options for your exact roof.
If the slope is below the manufacturer’s minimum for shingles, usually 2:12, it needs a flat roofing product, and shingles will fail there no matter how well they’re installed. On the rear additions and patched flat sections common in Florence-Graham, we use CertainTeed Flintlastic SA self-adhered modified bitumen, which is designed for low-slope and dead-flat surfaces. Mixing shingles onto a slope they were never rated for is how these roofs fail in the first place.
It’s genuinely tight. Most Florence-Graham bungalows sit within a few feet of the property line on both sides, so the tear-off is hand-work: tarps, roof jacks, and debris carried out through the house or over the fence in buckets, not a crane and dumpster dropped in the driveway. We plan the access before we quote, because it affects labor cost and the time on site. Call (877) 755-4274 for an estimate that accounts for your lot’s actual access, not a generic per-square number.
Service Areas Near Florence-Graham
Beyond Florence-Graham, we run CertainTeed service into East Los Angeles, Huntington Park, Walnut Park, South Gate, and the surrounding unincorporated county pockets. If you’re in Walnut Park or over in Ladera Heights, those pages cover what service looks like on your side of the line. For the full lane, see our Florence-Graham service area page.
Book Your CertainTeed Service in Florence-Graham Today
We start with an inspection and tell you what the roof actually needs, repair or replacement. Estimates are free, quotes are line-item, and the work is done by roofers, not a multi-trade crew. Call (877) 755-4274 to schedule yours.
Written by Gil Tanner, Owner at Weathervane Roof Repair. Roof-only service across Florence-Graham and the surrounding county pockets.