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CertainTeed Construction in Chatsworth, CA | Elmstead Remodeling Santa Clarita
We provide independent CertainTeed service across Chatsworth, from Landmark shingle replacement on older ranch homes to DiamondBack flashing repairs where Santa Ana winds meet single-layer underlayment. The one thing that makes our CertainTeed work here different is simple: we know this valley’s heat, this city’s unincorporated fire codes, and the way 1960s wood-frame construction behaves when you open the walls. Call (661) 542-4056 for a free written estimate. Learn more about our CertainTeed sales & service expertise and how it applies to your roof or siding.
Why Chatsworth Residents Choose Us for CertainTeed Service

We’re not new to Chatsworth. Our crews have worked on ranch homes and equestrian properties throughout the northwest Valley long enough to recognize the telltale signs of CertainTeed product fatigue before they become structural problems. We serve the entire Chatsworth service area, from the flats near the reservoir up into the hillside lots along the Santa Susana foothills. We use OEM CertainTeed parts when a full replacement is underway, but we won’t push a factory part where a better aftermarket option exists for a repair. Our rule is straightforward: repair when the failure is localized and the remaining material has at least 70% service life; replace when we find widespread granule loss, delamination, or multiple leak points.
Graham Stein, the owner at Elmstead Remodeling Santa Clarita, grew up in Los Angeles and learned the fundamentals of construction at Los Angeles Trade-Technical College before spending the better part of two decades working on projects across Southern California. He’s known for walking a homeowner through the sequence of work before a single tool comes off the truck. That’s the standard we bring to every Chatsworth project. The price on the paper is the price on the invoice – we put that in writing before the first board goes down.
Styles & brands we work with







Common CertainTeed Construction Problems We Solve in Chatsworth
CertainTeed products are solid, but they have limits. Here in Chatsworth, those limits show up in predictable patterns:
- Landmark shingle granule loss on south and west planes. Prolonged 100°F-plus heat bakes the asphalt mat and breaks down the adhesive holding the granules. On a west-facing roof in Chatsworth with direct afternoon sun, we regularly see granule loss severe enough to expose the fiberglass mat within 15 to 20 years of installation.
- Cedar Impressions siding warping and pulling away from walls. When Santa Ana winds combine with thermal expansion, vinyl siding fasteners loosen and the panels bow outward. That gap invites ember intrusion behind the siding, which is a serious concern given Chatsworth’s Very High Fire Hazard Severity Zone classification.
- DiamondBack flashing leaking at valley intersections. Older ranch homes in Chatsworth were often built with single-layer underlayment. Seismic shifting, even minor settling common on hillside lots, opens tiny separations at valley metal seams that let water through during wind-driven rain.
- GlasRoc sheathing degradation at cut edges. Many older Chatsworth homes lack modern weep screeds. Moisture trapped behind stucco saturates the gypsum core of GlasRoc at exposed cut edges, leading to crumbling and reduced shear strength – a problem when the county requires shear wall documentation for remodels.
- Original organic shingles with no ember resistance. Because Chatsworth remained largely unincorporated when many post-1960 homes were built, plenty of original roofs predate the county’s Class A fire-rating requirement. We routinely find CertainTeed organic shingles that wouldn’t pass today’s fire code.
CertainTeed Service in Chatsworth: What Local Conditions Mean for Your Equipment
Here’s the thing about Chatsworth that most out-of-area contractors miss: this community’s unincorporated status means many post-1960 ranch homes were built before Los Angeles County required Class A fire-rated roofing. Today, Chatsworth sits inside a Very High Fire Hazard Severity Zone, unlike neighboring Northridge. That’s not a footnote. It means a roof that legally complies in one Valley city could be a liability in another. We routinely inspect original CertainTeed organic shingles here that have zero ember resistance and would fail any current fire-safety review. When you combine that history with the area’s equestrian zoning – large lots, barn structures, and open space that fuels fire spread – the stakes are higher than a typical re-roof. This is the kind of local detail that changes what we recommend and why, and it’s a conversation we have with homeowners off Lassen Street or near the Chatsworth Reservoir just about every week.
CertainTeed Models & Products We Service in Chatsworth
We work with the CertainTeed product lines most common on Chatsworth homes: Landmark shingles in both standard and Pro profiles, Cedar Impressions siding in all profiles, DiamondBack flashing for valley and penetration detailing, and GlasRoc sheathing for exterior wall assemblies. For full replacements, we order OEM CertainTeed materials directly from regional suppliers. For repairs on older installations where the original product line has changed or been discontinued, we often specify aftermarket flashing, underlayment, and fasteners that meet or exceed current code. We keep common CertainTeed-compatible fasteners, sealants, and flashing materials on hand so a Chatsworth repair doesn’t wait on a parts run across the Valley.
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AfterCertainTeed Service Pricing in Chatsworth

So what should a Chatsworth homeowner expect to budget? The table below reflects what we see across our Santa Clarita service area. Roof repair covers localized fixes, leak sealing, or flashing replacement. Roof replacement is a full tear-off and re-roof with new underlayment, flashing, and shingles. Metal roof installation costs more because of material pricing and the labor involved in standing seam fabrication on-site.
| Service | Price Range |
|---|---|
| Roof Repair | $400 – $1800 |
| Roof Replacement | $8000 – $20000 |
| Metal Roof Installation | $15000 – $40000 |
| Standing Seam Metal Roof | $15000 – $40000 |
What drives the cost is the same in Chatsworth as anywhere: roof complexity, pitch, accessibility, and whether we’re removing multiple layers. What’s different here is the fire-zone consideration. If your home needs a Class A upgrade to satisfy current clearance requirements, that’s factored into the written estimate up front. No change orders later. Call (661) 542-4056 and we’ll walk the roof with you, explain what we see, and hand you a written number before any work is scheduled.
Serving Chatsworth, CA - Our Local Coverage Area
We’re a Chatsworth General Contractor based in the 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 Construction in Chatsworth
If the shingles are from the 1990s and show granule loss on the south or west planes, replacing the entire roof is usually the right call before adding a second story, because the new framing and shear work will require opening roof intersections you won’t want to re-flash twice. A second-story addition also changes the roof’s load path, and building code in unincorporated Chatsworth will require the existing roof assembly to meet current fire and structural standards. Call (661) 542-4056 for an exact assessment of your specific roof.
Cedar Impressions holds up reasonably well, but sustained heat above 100°F combined with Santa Ana winds creates thermal expansion stress that loosens fasteners over time. We see this most on south-facing walls with no shade. The fix is usually localized panel replacement with properly sized fasteners, not a full re-side. If we’re already doing other exterior work, it’s a good time to inspect all wall planes.
Wind-driven rain entering at a valley intersection or penetration is almost always a flashing failure, not a shingle failure. On older Chatsworth ranch homes with DiamondBack valley metal installed over single-layer underlayment, seismic settling has likely opened a small seam that only leaks when wind pressure pushes water uphill. We repair these by removing the old valley metal and installing new flashing with proper underlayment at the intersection. Call (661) 542-4056 for a written quote.
Incentive availability changes, and we won’t quote a program we haven’t verified for your specific address. What we can tell you: if your home sits in the Very High Fire Hazard Severity Zone and still carries a Class C roof, your insurer may already be asking questions, and upgrading to a Class A assembly is often a condition of continued coverage. We’ll help you document the final assembly for your insurance file.
Generally, cracks at cut edges in GlasRoc sheathing on older Chatsworth homes are moisture-related, not seismic. Without modern weep screeds, water trapped behind stucco wicks into the gypsum core and weakens it at exposed edges. If the cracking is widespread, we replace the affected sheathing sections and add proper drainage details before the stucco crew returns.
Service Areas Near Chatsworth
We serve Chatsworth and the surrounding northwest Valley. That includes Granada Hills, Sylmar, and Canoga Park to the east and south, plus Santa Clarita to the north. If you’re in one of those communities, our crew is already working nearby. See our CertainTeed service in Canoga Park and CertainTeed service in Santa Clarita pages for area-specific details.
Book Your CertainTeed Service in Chatsworth Today
Small leak or full replacement, our Bathroom Remodeling - Chatsworth team will give you a written price before any work begins. Call (661) 542-4056 now to schedule your free CertainTeed service estimate in Chatsworth.
Written by Graham Stein, Owner at Elmstead Remodeling Santa Clarita, serving Chatsworth and the surrounding Valley since 2005.












