







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Owens Corning Construction in West Hills, CA | Mason Remodeling Co Thousand Oaks
We provide independent Owens Corning service across West Hills, from roof repair to full replacement and insulation work. Our crews have resolved Owens Corning roofing and insulation failures on hundreds of West Hills hillside homes, and the field knowledge that comes from that matters here in ways a manufacturer’s spec sheet never covers. That’s the difference: we know how these products actually behave under West Hills expansive soils and heavy winter rain loads, not just how they perform in a lab. Call (805) 309-3386 for a free estimate.
Why West Hills Residents Choose Us for Owens Corning Service

We’ve been working on Owens Corning products long enough to know their strengths and their weak points. Duration Series shingles, Oakridge shingles, TruDefinition Duration Storm, AttiCat insulation: these are solid products, but they don’t all respond the same way to West Hills conditions. A roof on a shaded cul-de-sac off Valley Circle performs differently than one on an exposed south-facing slope above Victory Boulevard. Isaac Pruett, our owner, learned the trade at Los Angeles Trade-Technical College and has spent years on real job sites across the region, from General Contractor in West Hills projects near Lang Ranch to smaller roof and insulation builds. He and our crews approach every Owens Corning job the same way: figure out what’s actually failing, explain it plainly, fix it correctly.
We’re an independent Owens Corning service provider, which matters more than some homeowners realize. We’re not tied to a factory script. When a repair makes sense, we repair. When the roof is too far gone, we say so and show you why. You get a written price before any work starts, every time, no exceptions.
Styles & brands we work with







Common Owens Corning Construction Problems We Solve in West Hills
- Nail pops and shingle blow-offs on Duration Series roofs. West Hills gets intense thermal cycling between hot summer afternoons and cold nights, especially on exposed hillside exposures. That expansion and contraction works nails loose over time. We see blown shingles at the north rake after January downpours, when wind catches a loosened edge and peels back entire runs.
- Granule loss on Oakridge shingles from Santa Ana winds. South-facing slopes take the brunt of abrasive wind-driven grit. When granules shed prematurely, the asphalt mat underneath degrades fast. We catch this early by checking downspout debris and gutter lines for granule buildup before the roof starts leaking.
- Ice dam water intrusion at roof valleys. It’s less about ice here and more about backup. Undersized original 1970s drainage lets rainwater pool and push under Owens Corning shingles during heavy winter storms, especially where valleys meet blocked scuppers.
- Attic moisture and mold from Incorrect AttiCat insulation coverage. Custom 1960s-80s West Hills homes often have vaulted ceilings with poor ventilation. When AttiCat is blown too thick against the roofline or with blocked soffit vents, it traps humidity. That’s a mold problem waiting to happen.
- Decking rot beneath failed drainage points. When a 1970s scupper drain fails and water sits against the roof edge, the shingles aren’t the only casualty. We routinely find rotted decking under Owens Corning shingles in West Hills homes that have deferred drainage repairs for too long.
Owens Corning Service in West Hills: What Local Conditions Mean for Your Equipment
Homes south of Victory Boulevard in West Hills routinely show original 1970s hillside drainage systems that are undersized for today’s stormwater flows. That’s a condition you won’t find in neighboring Woodland Hills or Calabasas. When rainwater can’t move fast enough through undersized scuppers and downspouts, it backs up under Owens Corning shingle edges, soaks the decking, and accelerates granule loss at the eaves. We’ve seen this on custom homes off Kittridge Street where the original roof was still in decent shape but the drainage had quietly rotted the sheathing from underneath. For Owens Corning owners, it means the roof can look fine from the street while failing from the back side. Our inspections always include drainage assessment because in this part of West Hills, the roof and the hillside have to work together or neither one lasts.
Owens Corning Models & Products We Service in West Hills
We work on the full Owens Corning roofing lineup: Duration Series, Oakridge, and TruDefinition Duration Storm shingles. On the insulation side, we handle AttiCat blown-in fiberglass exclusively. We replace failed shingles with genuine Owens Corning products when available. When a color lot has been discontinued, which happens often with 1980s Oakridge roofs, we source high-quality architectural equivalents that match the existing roof profile. For insulation, we only use fresh AttiCat blown-in fiberglass because reused or compressed batts never recover their R-value in West Hills’ attic heat. We keep common Duration colors and AttiCat bags stocked locally for faster turnaround on West Hills jobs. You can learn more about our Owens Corning sales & service capabilities or see how we serve the broader West Hills service area.
See the difference
Before
After
Before
After
Before
AfterOwens Corning Service Pricing in West Hills

What you’ll pay depends on the scope, the slope, and how much decking or drainage work the job uncovers. Here are the ranges we work within for Owens Corning service in West Hills:
| Service | Price Range |
|---|---|
| Roof Replacement | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Tile Roof Repair | $600 – $2,500 |
| Emergency & Storm Damage (Owens Corning specific) | $400 – $1,800 |
Every estimate is written, line-itemed, and fixed before we start. No verbal ranges that grow on the final bill. No change orders unless you approve them first. Call (805) 309-3386 and we’ll walk the roof with you, explain what we’re seeing, and hand you a number you can plan around.
Serving West Hills, CA - Our Local Coverage Area
We’re based in the West Hills 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 – Owens Corning Construction in West Hills
West Hills sits against the Santa Susana Mountains, and the thermal swing between hot afternoons and cold nights on exposed slopes is more extreme than in the flatter parts of the Valley. That cycling loosens nails and weakens the seal strip over time. When a January storm hits, wind catches the lifted edge and peels shingles back. It’s a local climate issue, not a product defect. Call (805) 309-3386 and we’ll inspect your roof to see if your exposure is vulnerable.
Often yes. If the exact color lot is discontinued, we source a high-quality architectural shingle that matches the existing roof profile and color as closely as possible. We’ll show you the match on the roof before we commit, so you see it in West Hills sunlight, not a showroom swatch. Call (805) 309-3386 for a free color-match assessment.
Look for dark staining at the ceiling edges, a musty smell after rain, or visible mold near recessed lights. In custom 1960s-80s West Hills homes, vaulted ceilings often lack proper venting, and AttiCat blown too thick against the roofline traps humidity. We’ll check the coverage, the soffit vents, and the moisture levels. Call (805) 309-3386 and we’ll tell you if the insulation is the problem or if drainage is pushing moisture in from outside.
Not directly, but expansive clay soils shift foundations and hillside pads, which can pull gutters, flashing, and roof edges out of alignment. A roof that was installed square can develop gaps at the eaves and valleys over a decade or two. We account for soil movement when we inspect because in West Hills, what happens in the ground shows up on the roof.
Typically not for installation errors. Manufacturer warranties cover material defects, not workmanship. That’s why who installs the roof matters as much as what goes on it. We’re an independent Owens Corning service provider, so our responsibility is to the homeowner, not to any warranty department. Every job we do comes with our written guarantee: 365 days from completion, and if something’s not right, we come back and fix it at no cost.
Service Areas Near West Hills
We cover West Hills and the surrounding hillside communities, including Thousand Oaks, Calabasas, Oak Park, and parts of Topanga. If you’re just over the county line, see our Owens Corning service in Thousand Oaks page, or if you’re down the 101, our Owens Corning service in Calabasas page has the details. We know these hills and how they treat a roof.
Book Your Owens Corning Service in West Hills Today
We come out, we look, we write you a price. No pressure, no pitch. Tell me what you need done. We’ll tell you what it costs and how long it takes, then we’ll do exactly that. Call (805) 309-3386 to schedule your free Owens Corning estimate in West Hills.
Written by Isaac Pruett, Owner at Mason Remodeling Co Thousand Oaks, serving West Hills since 2004.











