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 Valley Glen, CA | Weathervane Roof Repair
We provide independent CertainTeed roofing service across Valley Glen, from full Landmark re-roofs to targeted repairs on the low-slope rear additions and flat carport roofs where leaks actually start on these older ranch homes. If you’re looking for CertainTeed repair in Van Nuys, we handle that too. What makes our CertainTeed work different here is that we know which product lines fail first under Valley Glen’s specific conditions, and we’ll tell you straight whether a repair stops the leak or a replacement is truly warranted. That honest assessment is why most of our Valley Glen calls begin with a roof inspection, not a sales pitch. Call (877) 755-4274 to schedule yours.
Why Valley Glen Residents Choose Us for CertainTeed Service
Gil Tanner, our owner, grew up in the Montrose area of Glendale and spent years tearing off and installing shingle systems on the hillside homes and flatlands before founding Weathervane Roof Repair. That experience shaped how we approach CertainTeed products: we’ve stripped enough aged Landmark and XT three-tab shingles off 1950s Valley Glen ranches to know how they actually weather under San Fernando Valley sun rather than how they look in a brochure.
We stock CertainTeed-brand shingles, underlayment, and accessories locally so we can match repairs to the existing roof plane instead of slapping on a mismatched aftermarket patch that fails the color test the day it’s installed. And because we’re a roofing-only company, we don’t treat your CertainTeed repair as a side ticket between plumbing jobs. Inspection comes first, every time, and replacement only when the deck and structure say it’s time. We also offer CertainTeed repair in Sherman Oaks with the same standards. We install, repair, and warranty our own work on CertainTeed products, but we are not authorized, sponsored, or endorsed by CertainTeed.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Valley Glen
- Landmark shingles losing granules and cracking on west- and south-facing planes. Valley Glen summers routinely top 100°F, and the UV load on those exposures accelerates granule loss and embrittlement. The mat cracks instead of flexing, and we’ve seen this happen five to eight years early on the hottest planes.
- XT 25/XT 30 three-tab shingles lifting and tearing at the tab seams after Santa Ana wind events. On the 1950s ranch roofs around Valley Glen, original nailing was often high and the deck has softened over decades. Wind gets under the tabs, creases them, and tears them at the seam. We re-seat and seal where viable, and replace where the mat is split.
- Flintlastic SA and older built-up membranes cracking on low-slope rear additions and flat carport roofs. Decades of Valley sun bake these membranes until they crack and blister long before the front-facing CertainTeed shingles show any wear. This is the most common source of “front roof” leaks that aren’t actually the front roof at all.
- Soft decking and failed sheathing exposed at tear-off. Original wood shake or composition over skip sheathing rarely survives re-roofing. The shingle wasn’t the leak; the deck under it was. We replace decking rather than shingle over rot, and we tell you upfront if that’s coming.
- Rusted or caulked-over flashing at shallow rear-roof-to-wall junctions. The low-pitch transitions on Valley Glen ranches concentrate water and debris, and the flashing there deteriorates fast. We find old caulk jobs and rusted edge metal that have been leaking for years without anyone noticing the source.
CertainTeed Service in Valley Glen: What Local Conditions Mean for Your Equipment
On Valley Glen’s older ranch blocks, the leaks almost always start at the low-slope rear additions and flat carport roofs, not the front shingles. The built-up or Flintlastic membrane back there bakes through decades of Valley sun and cracks years before the street-facing CertainTeed shingles look worn. We were called to a 1950s single-story ranch off one of those low-slope blocks for a ceiling stain the homeowner blamed on the front CertainTeed Landmark roof. Our tech traced it to the flat carport roof where the old membrane had cracked and the sheathing beneath had gone soft. We patched nothing. We tore off the carport membrane, replaced the rotted decking, and laid CertainTeed Flintlastic SA with new edge flashing, then re-seated a lifted Landmark tab on the main roof and matched it from the same line so the repair blended. The ceiling stayed dry through the next winter rain. That’s the Valley Glen pattern: the street-facing shingles look fine, and the real problem is hiding out back.
CertainTeed Models & Products We Service in Valley Glen
We work on the CertainTeed lines most common across Valley Glen’s ranch and dingbat housing stock: Landmark architectural shingles, Presidential Shake and Presidential TL, XT 25 and XT 30 three-tab shingles, and Flintlastic SA self-adhered modified bitumen for low-slope applications. On repairs we match CertainTeed shingles and underlayment to the existing system so the repair blends. On replacements we recommend the CertainTeed line that fits the roof’s existing structure, exposure, and your budget. For tear-offs that expose bad sheathing, we replace the decking rather than shingle over it, and we stock the common CertainTeed accessory parts locally so Valley Glen turnaround doesn’t crawl while we wait on a warehouse shipment. Need Encino CertainTeed service? We cover that area as well.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in Valley Glen
CertainTeed service pricing in Valley Glen depends on what we find once the roof is opened up. A simple repair, like re-seating lifted Landmark tabs or replacing a cracked shingle on a walkable roof, runs $350 – $800 on average. A mid-size repair with new flashing and membrane work on a flat carport section typically lands between $800 – $2,500. Full CertainTeed Landmark re-roofs across the 1,000 – 1,500 square foot ranches common in 91404 generally fall in the $9,000 – $18,000 range, and that climbs if decking replacement is needed. The biggest variable in Valley Glen is decking: when we tear off old shingles and find rotted sheathing, that work adds real cost. But we’ll show you the bad wood before we quote anything. Every estimate includes a written line-item breakdown, and we walk the roof with you before any work is approved. Call (877) 755-4274 and we’ll give you the straight answer.
Serving Valley Glen, CA — Our Local Coverage Area
We’re based in the Valley Glen 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 Valley Glen
On Valley Glen’s 1940s-1960s ranches, the flat carport roof or low-slope rear addition is the source far more often than the front shingles, because those membranes bake under Valley sun and crack years before Landmark shingles show wear. We trace the leak by water-testing from the lowest point up, not by looking at the ceiling stain and guessing. Our North Hills CertainTeed service follows the same careful process. Call (877) 755-4274 if you want us to find it properly.
Yes, if the surrounding shingles are still sealing and pliable. We match CertainTeed shingles to the existing line so the repair blends, and we’ll pull up adjacent shingles to confirm the deck under them is sound before we commit to a patch. If the deck is gone, the honest answer is a section repair, not a patch over rot.
High original nailing and softened decking let the tabs flex past their seal strength, and Santa Ana winds finish the job by creasing and tearing them at the seams. We re-seat and seal tabs that are still intact, and replace the ones where the mat has split. If it happens across every plane, that’s a sign the deck and nailing pattern are failing, and a re-roof is likely the cheaper option long-term.
Yes. The City of LA enforces Title 24 cool-roof standards for new roofing in Valley Glen, which restricts shingle color and solar reflectance on certain roof types. CertainTeed makes Landmark lines in cool-roof-compliant colors, and we’ll confirm which ones qualify before we quote, so you don’t fail a final inspection. We pull the permits and handle compliance so you don’t have to navigate that side of it.
On Valley Glen ranches built with wood shake or composition over skip sheathing, the decking is often spent by the time we tear off, and we won’t shingle over soft wood. We’ll tell you what the deck looks like once the old roof is off, and we’ll show you the areas that need replacement before any new material goes down. Call (877) 755-4274 for an inspection if you suspect the deck under your shingles has been compromised.
Service Areas Near Valley Glen
We handle CertainTeed service throughout the San Fernando Valley and nearby LA neighborhoods. That includes CertainTeed service in Sierra Madre for hillside homes, CertainTeed service in Culver City for the Mid-City and dingbat housing there, plus Shadow Hills, Beverly Hills, and Century City. We travel to Valley Glen on a regular schedule and keep local stock for faster turnaround. See our Valley Glen service area page for full details.
Book Your CertainTeed Service in Valley Glen Today
If the front shingles look fine but the ceiling stain says otherwise, it’s probably the carport or rear addition. Call (877) 755-4274 and we’ll set up a free roofing inspection in Valley Glen, walk the roof with you, and give you a straight answer. Same-day estimates are available on request, and you can also learn more about our CertainTeed sales & service approach before you call.
Written by Gil Tanner, Owner at Weathervane Roof Repair, serving Valley Glen and the surrounding San Fernando Valley.