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CertainTeed Roofing in La Crescenta-Montrose, CA | Weathervane Roof Repair
We provide independent CertainTeed roofing service across La Crescenta-Montrose, from mid-century ranch tear-offs to hillside tile repairs. What sets our CertainTeed work apart here is that we spec and document every re-roof as a compliant Class A assembly, because 91214 sits in a designated Very High Fire Hazard Severity Zone and county inspectors actually check for it. Whether you need a Landmark shingle repair after Santa Ana wind damage or a full replacement with ember-resistant venting, we’ll tell you exactly what your roof needs, and what it doesn’t. Call (877) 755-4274 for a free estimate.
Why La Crescenta-Montrose Residents Choose Us for CertainTeed Service
We work on CertainTeed roofs in La Crescenta-Montrose almost daily, on the steep-pitch, hillside lots where mid-century homes still carry original Landmark lines and Presidential Shake profiles. Because we install and repair these systems ourselves, we know how they fail here: sun-baked south-facing slopes losing granules, valleys where wind-driven rain gets under the shingle course, tile underlayment leaking long before the tile shows wear. We’re not an authorized dealer. That independence means when we quote a roof in 91214, we match the material to the fire zone requirements and your actual exposure, not to a manufacturer program reward. Gil Tanner, our owner, grew up in the Montrose area and has spent two decades reading roofs in these foothills. He’ll tell you the honest answer: repair the flashing, don’t replace the whole roof, unless the roof genuinely warrants it. We’re a roof-only shop, and we work with seven major shingle brands, CertainTeed included, so the recommendation fits your roof and budget.
Styles & brands we work with






Common CertainTeed Roofing Problems We Solve in La Crescenta-Montrose
- Landmark architectural shingle failures at hips and valleys. Santa Ana winds drive rain laterally across La Crescenta-Montrose’s exposed hillside roofs, and water gets under shingle courses at hips and valleys. We see this constantly on 1960s and 1970s ranch homes. The fix is usually localized: new valley flashing, reseated shingles, and sometimes re-nailing the hip line.
- Granule loss and premature curling on south- and west-facing slopes. The foothill sun here is relentless. CertainTeed roofs from the 1990s and 2000s, especially Landmark series on steep pitches, show granule loss and curling on sun-baked exposures. This is often an early sign the shingle is reaching end of life, though the north slope may look brand new.
- Presidential Shake field cracks and ridge-line uplifting. Seasonal hail and post-fire ash weight, followed by December through March rain, stress Presidential shingle lines. We find cracked fields and lifted ridge lines that let water into the attic. Repair means matching the existing profile or, when damage is widespread, an honest conversation about replacement.
- Tile roof underlayment leaks at valleys and vent penetrations. La Crescenta-Montrose has many older CertainTeed tile roofs where the tile looks fine but the underlayment beneath is aged, torn, or under-screened. Water gets in at valleys and around vents, and the homeowner sees ceiling stains while the tile above looks perfect. This is an underlayment replacement job, not a tile job.
- Wood-shake to CertainTeed conversions after foothill brush fires. After a brush fire in the San Gabriel foothills, insurance carriers push 91214 homeowners to swap wood-shake for ember-resistant Class A assemblies. We handle those conversions, and we document the vent screening and roof covering rating the county inspector will verify.
CertainTeed Service in La Crescenta-Montrose: What Local Conditions Mean for Your Equipment
Because 91214 sits inside a designated Very High Fire Hazard Severity Zone, the county inspects the roof covering rating and vent screening, not just whether the roof leaks. That’s the difference between re-roofing in La Crescenta-Montrose and doing the same job down in Glendale or Burbank. A flatland crew can replace shingles and nobody checks for ember resistance. Here, a CertainTeed re-roof has to be spec’d and documented as a compliant Class A assembly, with vents that keep embers out. On a steep ranch-style roof off the hillside tracts above Foothill Boulevard, we tore off two layers of aged Landmark shingles and found the valley flashing rusted through from years of wind-driven rain. We replaced the valley with new metal, re-decked two soft panels, and laid CertainTeed Landmark architectural shingles over a full ice-and-water and screened-vent Class A assembly, then walked the homeowner through the vent screening the county inspector would check. That’s the standard La Crescenta-Montrose roofing requires, and what we deliver.
CertainTeed Models & Products We Service in La Crescenta-Montrose
We service the CertainTeed lines commonly found on La Crescenta-Montrose roofs. Landmark architectural asphalt shingles, including Landmark Pro, cover most of the mid-century tract and ranch homes. Presidential Shake and Presidential Solaris show up on higher-end hillside properties. CertainTeed clay and concrete tile systems, with their underlayments, sit on many older Spanish Revival homes in the foothills. Flintlastic low-slope membrane serves the flat roof sections and patios some 91214 homes have. For repairs, we use genuine CertainTeed shingles and components where a Like-for-Like or warranty-matching repair calls for it. For flashing, vent boots, and underlayment, we use quality aftermarket materials where they perform equal or better at lower cost. This keeps repairs honest and keeps your CertainTeed warranty intact where it matters.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in La Crescenta-Montrose
- Roof inspection: free with any repair or replacement estimate; standalone inspections quoted on request.
- Shingle repair (Landmark or Presidential): typically $350 to $900 depending on scope, access, and pitch.
- Valley or flashing repair: $400 to $1,200 for most hillside homes.
- Tile underlayment replacement: $3,500 to $8,000 depending on roof size and tile condition.
- Full CertainTeed replacement with Class A assembly: $18,000 to $45,000 or more based on square footage, tear-off layers, and access.
Your free estimate includes a detailed inspection, written line-item pricing, and a straight answer on repair versus replacement. Call (877) 755-4274 to schedule yours, and we’ll tell you what your roof actually needs.
Serving La Crescenta-Montrose, CA — Our Local Coverage Area
We’re based in the La Crescenta-Montrose area and know this community well, from CertainTeed in Tujunga to nearby foothill neighborhoods. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.


FAQs – CertainTeed Roofing in La Crescenta-Montrose
Does a CertainTeed roof meet the Very High Fire Hazard Severity Zone rules in La Crescenta-Montrose?
Yes, CertainTeed Landmark shingles and Presidential Shake lines can be installed as part of a Class A fire-rated assembly, but the classification depends on the full system: the roof covering, the underlayment, and the vent screening. In 91214, the county inspector checks all three. We spec and document each layer so your roof passes inspection the first time. Call (877) 755-4274 to get your roof assessed against the local fire zone requirements.
My 1960s hillside home still has wood-shake – can you swap it for CertainTeed shingles?
Absolutely, and this is one of the most common jobs we do in La Crescenta-Montrose after foothill brush fires. Wood-shake is an ember magnet, and insurance carriers in the Very High Fire Hazard Severity Zone often require replacement. We tear off the old shake, re-deck where needed, and install CertainTeed shingles over a screened-vent Class A assembly that meets county code. Call (877) 755-4274 for a conversion estimate.
Why does my CertainTeed tile roof leak when the tile looks fine?
Because the tile is not the waterproofing layer. The underlayment beneath the tile does that job, and on older La Crescenta-Montrose tile roofs, that underlayment is aged, torn, or under-screened. Water gets in at valleys and vent penetrations, and you see ceiling stains while the tile above looks perfect. We replace the underlayment without disturbing the tile, which is a fraction of the cost of a full tile replacement. Call (877) 755-4274 and we’ll find where the water is actually getting in.
Do Santa Ana winds and seasonal rain damage CertainTeed shingles more here than in the flats?
Yes, noticeably. The steep-pitch hillside lots in La Crescenta-Montrose catch wind-driven rain differently than the flat neighborhoods in Glendale or Burbank. Water gets driven laterally under shingle courses at hips and valleys, and that’s why we see certain CertainTeed failure modes here that a lowland crew rarely encounters. Repairing those areas promptly, before the December through March rain, saves the decking and the attic. Call (877) 755-4274 to schedule an inspection before the next storm season.
Is it worth repairing or fully replacing my older CertainTeed roof?
That depends on the roof’s age, the extent of the damage, and what the underlying deck looks like. On original mid-century roofs in La Crescenta-Montrose, spot repair is usually a stopgap. Once the shingles are end-of-life, full replacement with an ember-resistant Class A assembly is usually the smarter spend. But we’ll never push a replacement if a repair will do. That’s the whole point of our CertainTeed sales & service approach. Call (877) 755-4274 for an honest assessment.
Service Areas Near La Crescenta-Montrose
We serve La Crescenta-Montrose and the surrounding foothill communities. Our CertainTeed crews also work in East Pasadena and East San Gabriel, where similar hillside and mid-century housing stock exists, plus Shadow Hills and the surrounding La Crescenta-Montrose service area. If you’re in CertainTeed service in Pasadena or need CertainTeed service in Koreatown, we cover those areas too.
Book Your CertainTeed Service in La Crescenta-Montrose Today
If your CertainTeed roof is showing wear, leaking, or was built before the current fire zone codes took effect, call us at (877) 755-4274. We’ll inspect it, tell you straight what it needs, and quote a fair price. Estimates are free, and we start with the inspection before any quote. Call (877) 755-4274 to schedule.
Written by Gil Tanner, Owner at Weathervane Roof Repair, serving La Crescenta-Montrose since he started on these foothill roofs two decades ago.