Owens Corning Construction in San Jose, CA

Owens Corning Construction in San Jose, CA | Rowan Construction Group

We install and repair Owens Corning insulation systems across San Jose, from 1960s Berryessa tract homes to new Almaden Valley ADUs, alongside Fence Installation in San Jose. We’re an independent contractor, not a manufacturer affiliate, which means our written quote reflects what the job actually needs rather than a brand quota. The difference here: we pair Owens Corning product knowledge with San Jose’s specific seismic, soil, and Title 24 realities. Call (470) 298-9650 for a free estimate with a written price before any work starts.

Call (470) 298-9650

Why San Jose Residents Choose Us for Owens Corning Service

Grant Rowan founded this company in 2007 after training in construction technology at Los Angeles Trade-Technical College, where coursework covered framing, concrete, and estimating before he ever took a paying job. That training shows in how we quote Owens Corning work. We don’t guess a square footage and multiply. We measure attic depth, check existing R-value, map the cavities in a raised cripple wall, and then write the number. Under Clause 1 of The Haven Standard, you get that price in writing before we touch a tool.

San Jose homeowners also get our 365-Day Done Right Promise. If the insulation isn’t performing, we come back and make it right. Every visit includes a documented photo record, and every crew member is background-checked and uniformed. We’ve delivered over 4,000 projects since 2007, each with a written price up front and a written warranty at the end. For Owens Corning sales & service, we bring the same discipline we bring to a full kitchen remodel or a soft-story retrofit.

Common Owens Corning Construction Problems We Solve in San Jose

Here’s what we find when San Jose homeowners call us about their Owens Corning insulation:

• Settled EcoTouch batts in 1950s-1970s attics. San Jose’s dry summers bake attic spaces. Original Owens Corning EcoTouch fiberglass loses loft over decades of heat cycling, and R-value drops with it. We see this in Cambrian and East San Jose ranches where the insulation is original and the energy bills aren’t what they used to be.
• Rodent intrusion in ProPink batt insulation. Raised cripple-wall foundations, common in Berryessa and Cambrian, leave access points that rodents find. We’ve opened more than one crawlspace to find ProPink batts shredded into nests. Replacement with mineral wool, which pests don’t burrow into, is often the right call.
• Improperly installed Foamular XPS on hillside lots. Almaden Valley’s cut-and-fill grading means moisture moves downhill into foundation walls. XPS rigid foam installed without drainage planning traps that moisture against the structure. We see reduced thermal performance and, in worse cases, sheathing damage.
• Sagging Thermafiber in mid-century cathedral ceilings. Santa Clara Valley temperature swings test mineral wool’s fasteners. Cathedral ceilings in ranch homes built before modern attachment standards show sagging that opens thermal gaps at the ridge line.
• Uninsulated cripple-wall cavities. Many San Jose tract homes from the 1950s and 1960s were built with nothing in the cripple wall. The space between the foundation and the first floor leaks conditioned air year-round. This isn’t a failure of an Owens Corning product; it’s the absence of one, and it’s the single biggest insulation upgrade we perform.

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Owens Corning Service in San Jose: What Local Conditions Mean for Your Equipment

San Jose’s mandatory Soft-Story Retrofit Ordinance creates a demand that contractors in Sunnyvale or Santa Clara don’t see at the same scale. The ordinance targets wood-frame apartment buildings with open ground-floor parking, the configuration that collapsed during Loma Prieta in 1989. When these buildings are retrofitted, the tuck-under parking areas require fire-rated insulation in the ceiling assemblies. Owens Corning Thermafiber mineral wool is one of the products that meets that requirement, and its fire rating is tested, not theoretical. If you own or manage a soft-story building in downtown San Jose or along the Alameda, the insulation spec is part of your permit package, and we quote it as a line item with the product named. That’s the difference between a contractor who has submitted these plans and one who hasn’t.

Owens Corning Models & Products We Service in San Jose

We work with four Owens Corning product lines, and we spec them for what they actually do in a San Jose building:

• EcoTouch PINK Fiberglas for attic and wall cavity insulation.
• ProPink Unfaced for framed walls where a vapor barrier isn’t wanted.
• Thermafiber Mineral Wool for fire-rated assemblies, soundproofing, and pest-resistant applications.
• Foamular XPS Rigid Foam for foundation and below-grade work, installed with drainage in mind.

When an older home’s exact model line is discontinued, we source aftermarket equivalents that meet current energy codes and tell you what we’re using and why. We prioritize repair and selective replacement over full tear-out whenever the existing insulation can be salvaged or supplemented. That saves San Jose homeowners real money, and we’ll show you the photo record to back up the recommendation.

Owens Corning Service Pricing in San Jose

FAQs - Owens Corning Construction in San Jose

Service Areas Near San Jose

We serve San Jose and the surrounding communities. If you’re in Santa Clara, Campbell, Los Gatos, or Milpitas, we can quote Owens Corning work there too. Our San Jose service area page covers what we offer. If you’re comparing service in other markets, see Owens Corning service in Austin or Owens Corning service in Jacksonville.

Book Your Owens Corning Service in San Jose Today

Measure twice, say it once, show your work. That’s how we quote Owens Corning service in San Jose. Call (470) 298-9650 and we’ll schedule your free estimate with a written price before anything starts.

Written by Grant Rowan, Owner at Rowan Construction Group, serving San Jose since 2007.