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 Westmont, CA | Gable Roof Repair
We provide independent CertainTeed roofing service across Westmont, CA, from leak repairs on low-pitch garage roofs to full tear-offs of aging 3-tab shingles. What makes our CertainTeed work different here is that we understand exactly how these shingles fail in Westmont’s specific conditions: intense summer UV, Santa Ana winds, and dense mid-century lots with tight access. Call (866) 650-8319 for a free estimate on any CertainTeed repair or replacement.
Why Westmont Residents Choose Us for CertainTeed Service
CertainTeed makes solid shingles, but no shingle is immune to what Westmont throws at it — the same challenge we see providing CertainTeed service in View Park-Windsor Hills. We’ve spent years working on Landmark, Xtreme IR, Patriot 3-tab, and Presidential Shake roofs across this neighborhood, and the failure patterns are consistent. West-facing slopes cook in the afternoon sun. Flat garage roofs hold water at the seams. Older decks loosen and let Santa Ana gusts get under the rake edges.
Neil Drummond, owner of Gable Roof Repair, grew up in Irvine’s Woodbridge neighborhood watching roofs age in real time. The roof doesn’t lie – the materials tell you exactly what went wrong and when. That’s the lens we bring to every CertainTeed job in Westmont: diagnosis before recommendation, repair when it makes sense, replacement only when it’s actually necessary. For more on how we approach the brand, see our CertainTeed sales & service page.
Styles & brands we work with
Common CertainTeed Roofing Problems We Solve in Westmont
These are the five failure modes we see most often on CertainTeed roofs in Westmont’s 90047 ZIP code:
- Granule loss and curling on west-facing slopes. Landmark and Xtreme IR shingles take the worst of the afternoon sun on the west side of the house. After 10 to 15 years of that exposure, the asphalt dries out, granules shed into the gutters, and shingle edges curl up like dead leaves.
- Wind uplift at rake and eave edges on Patriot 3-tab shingles. Santa Ana events hit Westmont’s older roofs hard, especially where original nailing was sparse and the decking has worked loose over 60-plus years. We find 3-tab shingles peeled back like pages in a book after a strong wind event.
- Flashing failures at low-pitch garage and addition roofs. This is the Westmont special. CertainTeed shingles meeting rolled roofing or a wall intersection at a low slope will leak at the flashing seam after the first real winter storm. Water shows up at the interior ceiling seam, and the fix is almost never a full re-roof.
- Thermal cracking and blistering from poor attic ventilation. Landmark and Presidential lines hold up well, but not when the attic underneath is a heat box. Westmont’s mid-century houses often lack adequate intake and exhaust ventilation, so shingles cook from above and bake from below.
- Patched-over flat roof failures. The rolled roofing on garages and rear additions gets patched and re-patched over the decades. Eventually the seams give way, and the patch job fails at the worst possible moment – during the first heavy winter rain.
CertainTeed Service in Westmont: What Local Conditions Mean for Your Roof
Westmont’s dense lot lines and narrow side yards create a logistics problem that doesn’t exist in newer neighborhoods with wider setbacks. Tear-off dumpsters often can’t be placed on the property because there’s no side access wide enough for a standard 20-yard bin. We stage materials on the street, use smaller dumpsters or bag systems, and coordinate with the homeowner to minimize disruption. It adds time and planning to every CertainTeed re-roof here, unlike CertainTeed in West Athens where wider lots simplify logistics, but it’s part of doing the job right in a neighborhood where houses sit close enough to pass a tool across the property line.
What that means for CertainTeed owners specifically: if your roof needs replacement, budget for a slightly longer timeline than you’d see in a sprawling suburban development. The work itself is the same quality – it’s the staging and cleanup that take extra coordination. For repairs, the tight access rarely matters. We can ladder up from the front, patch a low-pitch section, and be done in a single visit.
CertainTeed Models & Products We Service in Westmont
We work on all four major CertainTeed residential shingle lines in Westmont:
- Landmark Architectural Shingles – the most common CertainTeed product on Westmont roofs; we see both Landmark and Landmark Pro in this housing stock.
- Xtreme IR Asphalt Shingles – the high-reflectivity line that helps with cooling, but still takes UV damage on exposed slopes over time.
- Patriot 3-Tab Shingles – still on a lot of the original 1950s and 1960s roofs out here, now at or past end of life.
- Presidential Shake – premium shake-look shingles that appear on some of the larger or recently remodeled homes in Westmont.
For repairs, we use CertainTeed OEM accessories – starter strips, ridge vents, flashing – when available. For underlayments and sealants on repair work, we also turn to quality aftermarket products that meet or exceed the manufacturer’s specifications. The goal is a repair that lasts, not a parts-sourcing delay. If you’re in the Westmont service area, we can usually match your existing shingle color from local supplier stock within a day or two.
See the difference
Before
After
Before
After
Before
AfterCertainTeed Service Pricing in Westmont
Here’s what CertainTeed work typically costs in Westmont:
| Service | Price Range |
|---|---|
| Leak repair (flashing or small shingle section) | $350 – $800 |
| Flat roof patch on garage or addition | $500 – $1,400 |
| Replacing 10 – 20 damaged shingles | $300 – $700 |
| Full tear-off and re-roof (per square, installed) | $450 – $750 |
| Roof inspection (standalone) | $150 – $300, credited toward any repair |
What drives the final number: roof size, slope, access, how many layers need to come off, and whether the decking underneath is still solid. Every estimate we give in Westmont includes a written line-item breakdown, so you know exactly what you’re paying for. Call (866) 650-8319 to schedule a free estimate – we’ll come out, look at the roof, and tell you straight what it needs.
Serving Westmont, CA — Our Local Coverage Area
We’re based in the Westmont area and know this community well, with CertainTeed service in Inglewood and nearby areas too. Use the map below to see our full service coverage — if you’re nearby, we can almost certainly help.
FAQs – CertainTeed Roofing in Westmont
If the curling and granule loss is isolated to a few shingles or one slope, repair is absolutely on the table. If more than 30% of the roof surface is affected – which we often see on west-facing slopes in Westmont after 15-plus years of UV exposure – replacement is the honest recommendation. Call (866) 650-8319 and we’ll assess it during a free estimate.
Flat and low-pitch garage roofs in Westmont leak at the flashing seams where the shingles meet the rolled roofing, and those seams only open up under sustained water pressure from a heavy storm. The fix is typically flashing replacement plus a modified bitumen patch on the flat section. We do this kind of repair regularly on mid-century Westmont homes without recommending a full tear-off.
Xtreme IR shingles are built with reflective granules to reduce heat absorption, but Westmont’s inland-adjacent climate still puts more UV stress on them than coastal cities — or even CertainTeed repair in Lennox — would see. The reflective layer slows degradation – it doesn’t stop it. After 10-plus years, we still see granule loss and brittleness on exposed slopes in Westmont, just on a delayed timeline compared to standard shingles.
We can match your existing CertainTeed color in most cases, especially with Landmark and Patriot lines where the colorways have been stable for years. There’s always a slight difference between old and new shingles – the original has years of UV fading – but the patch blends in within a season. We’ll tell you up front if a visible mismatch is likely.
No. Installing new shingles over an old layer hides decking damage, traps heat, and voids the manufacturer’s warranty for the new shingles. In Westmont, where original decks are 60-plus years old, a clean tear-off lets us inspect and repair the decking before the new CertainTeed shingles go down. Call (866) 650-8319 for a straight answer on what your roof actually needs.
Service Areas Near Westmont
We also provide CertainTeed roofing service in nearby communities including Irvine, Tustin, Costa Mesa, Santa Ana, and North Tustin. For certain brands, we cover neighborhoods further out as well – see our CertainTeed service in Quail Valley and CertainTeed service in Boyle Heights pages for details.
Book Your CertainTeed Service in Westmont Today
Last winter, a homeowner on a mid-century street in Westmont called after a storm because water was dripping from a ceiling seam near the rear addition. We found the Landmark shingles on the low-pitch garage roof had lifted at the flashing where the garage met the house, and the original 3-tab shingles on the main roof were curling badly. We replaced the flashing, patched the flat roof with modified bitumen, and swapped in matching Landmark shingles – solving the leak without a full tear-off. That’s the repair-first approach. Call (866) 650-8319 to schedule your free estimate in Westmont.
Written by Neil Drummond, Owner at Gable Roof Repair, serving Westmont and the surrounding communities.