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Owens Corning Construction in Los Altos, CA | Ashford Contractors
Ashford Contractors provides independent Owens Corning roofing and insulation service across Los Altos, from tear-offs and replacements to targeted repairs and ventilation work. What makes our Owens Corning work different here is that we plan every project around two Los Altos realities most contractors miss: the city’s tree-protection ordinance and the expansive clay soils that shift roof decks seasonally. If you’re weighing repair versus replacement, call (877) 752-3868 for a free estimate. We’re not manufacturer-affiliated, which means we recommend the Owens Corning system that fits your roof, not the one a rep is pushing that quarter.
Why Los Altos Residents Choose Us for Owens Corning Service
Glen Mossier, our owner, grew up watching Bay Area homes get rebuilt after water damage and learned early that the roof is the first line of defense against everything the Peninsula weather throws at a house. That’s the standard we bring to every Owens Corning service in Los Altos Hills. We walk the roof, check the deck, inspect the ventilation, and then tell you straight what needs work and what doesn’t.
Because we’re an independent Owens Corning service provider, not an authorized dealer, our recommendations aren’t locked to a single product line. If your low-slope ranch needs Duration® Series Shingles with upgraded ridge vents, we’ll say so. If a targeted repair on your Oakridge® roof makes more sense than a full replacement, we’ll show you the math on both. Homeowners across 94022, 94023, and 94024 call us because we speak Owens Corning fluently, but we speak Loyola Owens Corning service first.
Styles & brands we work with







Common Owens Corning Construction Problems We Solve in Los Altos
- Granule loss on south-facing Oakridge® eaves. Los Altos summers are dry and intense, and older ranch homes often lack proper attic ventilation. We regularly see Oakridge shingles shedding granules along sun-exposed eaves years before the rest of the roof shows wear. Fixing this usually means adding intake vents and replacing the affected sections, not the whole roof.
- Tab cracking on Duration® shingles over skip sheathing. Many 1950s Los Altos homes still have original skip sheathing. As clay soils expand in winter and contract in summer, the deck shifts just enough to crack shingle tabs at the edges. We re-deck with solid plywood or OSB before reinstalling Duration shingles so the warranty actually holds.
- FOAMULAR® insulation absorbing crawlspace moisture. Wet winters push soil vapor into older crawlspaces. FOAMULAR boards installed directly against dirt can wick that moisture, reducing R-value and leaving a musty smell. We pull the compromised boards, add a proper vapor barrier, and reinstall insulation that stays dry through the rainy season.
- Berkshire® shingle blistering on steep-pitch additions. Heritage oaks and redwoods drop leaf litter that blocks attic intake vents. On steep roofs, that trapped heat blisters designer shingles fast. We clear the vents, install leaf guards, and make sure the attic breathes before we replace the shingles.
- Gutter and downspout systems failing under canopy debris. With Los Altos’ tree canopy, gutters clog fast. We replace undersized gutters with properly sloped systems and add gutter guards that handle oak leaves without backing up.
Owens Corning Service in Los Altos: What Local Conditions Mean for Your Equipment
Here’s the fact that separates a Los Altos Owens Corning job from the same job in Mountain View or San Mateo. The city’s tree-protection ordinance is one of the strictest in the region. If you have a heritage oak or redwood anywhere near your roof, a tear-off often requires an arborist report and sometimes a full tree survey before we can even schedule the dumpster. That’s not bureaucracy for its own sake. Those root systems run wide and shallow, and a dumpster parked over the wrong zone or a tear-off that disturbs roots can kill a tree that predates the house.
In practice, that means we plan Owens Corning roof replacements in Los Altos differently. Before we quote a job, we check the tree canopy, look for protected species, and if we see anything questionable, we recommend an arborist consult before you sign anything. We recently completed a Duration roof replacement on a 1950s ranch in the Owens Corning service in Stanford area. The original skip sheathing had shifted from seasonal clay movement, cracking the shingles. After an arborist confirmed no heritage oaks were in the work zone, we installed a new deck, Duration shingles, and upgraded ridge vents to handle the mature-canopy leaf litter. The homeowner got a 50-year non-prorated warranty and an attic that finally stays dry through wet winters. Build it right the first time, and you won’t be rebuilding it in ten years.
Owens Corning Models & Products We Service in Los Altos
We install and repair the full Owens Corning roofing lineup, including Oakridge® Architectural Shingles, Duration® Series Shingles, and Berkshire® Collection Shingles. We also work with FOAMULAR® Rigid Foam Insulation in crawlspaces, attics, and exterior walls. When it comes to parts, we specify genuine Owens Corning shingles, underlayments, and accessories to keep your warranty intact. But we don’t default to OEM for everything. For ventilation and flashing on Los Altos retrofits, we use high-quality aftermarket components when they fit the job better. If your existing Owens Corning roof has more than 20% compromised shingles, we’ll walk you through the replacement math versus patching it again. No pressure either way.
Our full name-brand roster matters here too. We work across six roofing manufacturers, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral. That means you get real material choice, not whatever a single-brand contractor happens to stock. For a deeper look at our Owens Corning work across the Peninsula, see Owens Corning sales & service.
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AfterOwens Corning Service Pricing in Los Altos
Roof work in Los Altos costs what it costs because of what’s under the shingles, not just the shingles themselves. Deck repair, ventilation upgrades, tree surveys, and the city’s permit requirements all shape the final number. Here’s our current pricing on Owens Corning roofing work in the area:
| Service | Price Range |
|---|---|
| Roof Replacement (Owens Corning shingles) | $8,000 – $20,000 |
| Roof Repair | $400 – $1,800 |
| Metal Roof Installation (standing seam) | $15,000 – $40,000 |
Every estimate from us is free and line-itemed. We walk the roof, open the attic if needed, and give you a written number that doesn’t shift once work starts. Call (877) 752-3868 to schedule yours.
Serving Los Altos, CA — Our Local Coverage Area
We’re our General Contractor in Los Altos 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 Los Altos
Yes, if there’s a heritage oak or redwood within the work zone or root protection area. Los Altos’ tree-protection ordinance requires an arborist report for work that could disturb protected trees, and we won’t schedule a tear-off until that report clears the site. If you’re unsure, call (877) 752-3868 and we’ll look at your lot before you pay for anything.
Expansive clay soil swells in wet winters and contracts in dry summers, which moves the roof deck enough to crack shingle tabs, especially over older skip sheathing. Proper re-decking and ventilation can steady the deck and extend shingle life significantly. The fix is structural first, shingles second.
Usually yes, as long as the damage is limited to a few slopes and the deck below is intact. We replace compromised shingles with matching Duration product and check the underlayment before sealing anything. If more than 20% of the roof is compromised, we’ll show you the replacement math. Call (877) 752-3868 for a straight answer.
FOAMULAR® rigid foam can work well, but only when it’s installed off the soil with a proper vapor barrier between the ground and the board. In a wet-winter climate like Los Altos, direct soil contact will wick moisture and kill the R-value. We typically recommend a sealed crawlspace with rigid foam on the foundation walls rather than under the floor.
It can, because skip sheathing doesn’t provide the continuous nailing surface Owens Corning requires for warranty coverage. If your roof has original skip sheathing, we’ll re-deck before we install. That’s the only way the warranty means anything. Call (877) 752-3868 and we’ll check your deck before you commit to any shingle work.
Service Areas Near Los Altos
Our Owens Corning crews work throughout Los Altos and the surrounding Peninsula. We’re in Los Altos service area daily, and we regularly cross into adjacent communities. For reference work further north, see Owens Corning service in Mountain View and Owens Corning service in Noe Valley. We also serve Foster City, Redwood Shores, Belmont, San Mateo, and San Carlos.
Book Your Owens Corning Service in Los Altos Today
If your Owens Corning roof needs attention in Los Altos, start with a free estimate. Call (877) 752-3868 and we’ll schedule a walkthrough, check your deck and ventilation, and give you a written number the same visit. One contractor, every system, from the roofline to the foundation.
Written by Glen Mossier, Owner at Ashford Contractors, serving Los Altos and the greater Peninsula.