Reflectix Insulation in Los Gatos, CA | Topside Attic Insulation Campbell
Reflectix radiant barrier service in Los Gatos runs $1,800-$4,200 for most attic retrofits, with crawl space vapor barrier work starting around $2,400. We’re an independent Reflectix installer, not manufacturer-affiliated, and we’re the crew that knows which applications pass WUI fire inspection in the Los Gatos hills and which ones get red-tagged. Call (831) 534-3206 for a written estimate before any work starts.
Why Los Gatos Residents Choose Us for Reflectix Service
Wes Okafor, our owner, grew up on Chicago’s South Side and learned the trade at Olive-Harvey College before spending two decades in South Bay attics and wall assemblies. Jobs near Campbell’s Pruneyard Plaza corridor taught him early that homes this age carry air-sealing problems that show up long before you touch a bag of blown-in cellulose. He still runs a blower-door test - a pressurization reading that shows, in one number, how much air your building envelope is losing - before and after every applicable job, and hands you a printed report with both figures.
We’ve worked Reflectix products in Los Gatos long enough to know where they work, where they fail, and where the Town’s Wildland-Urban Interface overlay changes the material spec entirely. Reflectix sales & service from our crew means you get the actual product knowledge, not a catalog number matched to a ZIP code. We stock genuine Reflectix rolls and tapes, and when WUI rules require a switch to mineral wool or other non-combustible products, we tell you before we quote, not after the inspector shows up.
Every job starts with a written price and written scope under Haven Standard Clause 1. No exceptions. You’ll also get a Documented Photo Record of the work and, on applicable jobs, those before-and-after blower-door numbers in writing.
Common Reflectix Insulation Problems We Solve in Los Gatos

- Delamination from fog belt moisture. The Los Gatos Hills funnel marine fog and cool air off the Santa Cruz Mountains directly into hillside neighborhoods. That higher ambient moisture gets between Reflectix layers and the roof deck, causing the reflective surfaces to separate and lose effectiveness. We see this most often in homes off Kennedy Road and similar ridgeline streets where the fog lingers until mid-morning.
- Corroded aluminum foil facing. When marine layer moisture penetrates attics with inadequate ventilation, the aluminum foil facing on Reflectix corrodes and flakes. Once the reflective surface degrades, you’re left with a plastic sheet that does almost nothing for radiant heat transfer. In Los Gatos, this happens faster than in flatland Campbell or Santa Clara.
- Trapped heat and condensation from missing air gaps. Radiant barrier installed flush against roof decking without the required air gap turns into a condensation trap. In Los Gatos hillside crawl spaces with post-and-pier foundations, this accelerates wood rot within a few seasons. The damp microclimate here makes proper installation critical.
- Staple and tape failure from thermal cycling. Post-Loma Prieta rebuilds in Los Gatos used framing and fastening methods that create more thermal movement than original 1920s construction. Reflectix staples pull out and tape adhesive degrades, leaving sagging sections and coverage gaps. We re-secure with appropriate fasteners for the substrate.
- WUI non-compliance on exterior applications. Standard Reflectix foil-faced products don’t meet the Town’s fire-hardening requirements for hillside permitted work. Homeowners who installed Reflectix on exterior walls or roof decks without knowing the WUI overlay rules face removal and replacement with mineral wool or other approved non-combustible materials.
Before
AfterReflectix Service in Los Gatos: What Local Conditions Mean for Your Equipment
Here’s the specific Los Gatos reality that reshapes how Reflectix gets used here. The Town’s hillside Wildland-Urban Interface overlay mandates non-combustible insulation products for any permitted work in the hills. That requirement does not apply to flatland neighbors like Campbell or Monte Sereno. For Reflectix specifically, this means standard foil-faced radiant barrier is disqualified on exterior applications in WUI zones. Homeowners must switch to mineral wool or other approved materials for those areas.
We’ve watched out-of-area contractors price jobs assuming standard fiberglass batts or Reflectix foil products will pass inspection, then eat the cost change or pass it to the homeowner mid-project. The 1990s post-Loma Prieta rebuild cohort throughout Los Gatos is now hitting the age where original insulation materials need replacement, and many of those homeowners are discovering their retrofits require WUI-compliant specs they didn’t anticipate. We recently serviced a 1970s hillside home off Kennedy Road where the original Reflectix radiant barrier had delaminated after years of fog exposure, leaving bare foil patches and condensation stains. We removed the failed material, installed new closed-cell spray foam at the rim joists for vapor control, then added a compliant radiant barrier in the attic with proper ventilation, bringing the home up to WUI fire-hardening specs and cutting attic heat gain noticeably. Los Gatos service area work demands this dual fluency in product performance and local code enforcement.
Reflectix Models & Products We Service in Los Gatos

We work with the full Reflectix residential line and stock the most common rolls for Los Gatos turnaround without special-order delays:
- Reflectix Double Reflective Insulation Roll (BP48010) - staple-up attic radiant barrier, most common retrofit in Los Gatos flatland homes
- Reflectix Reflective Foil Insulation (ST16025) - crawl space and basement applications where vapor management is critical
- Reflectix Radiant Barrier Roof Deck (BP24025) - new construction and full re-roof scenarios; WUI compliance review required for hillside jobs
- Reflectix Double Bubble Reflective Foil (BP48025) - garage doors, duct wrap, and selective retrofit applications
We use genuine Reflectix rolls and tapes when available. For retrofits requiring WUI compliance, we source equivalent ASTM-rated reflective foil products or specify mineral wool where the Town’s fire-hardening rules require it. We assess whether existing Reflectix can be repaired or if full replacement is needed based on moisture damage extent and current code requirements. Seal the leaks first. The insulation has nowhere useful to go until you do.
Reflectix Service Pricing in Los Gatos
Most attic radiant barrier retrofits in Los Gatos run $1,800-$4,200 depending on attic square footage, accessibility, and whether we find unsealed top plates or can lights that need addressing first. Crawl space vapor barrier work with Reflectix or equivalent materials starts around $2,400 and scales with liner thickness and pier-and-beam complexity. Full Reflectix removal and replacement in a hillside home requiring WUI-compliant material upgrades can reach $5,500-$8,000.
What drives cost: attic accessibility (steep roof pitches common in the hills add labor hours), existing material condition (wet or mold-contaminated Reflectix requires remediation before replacement), and whether the job needs mineral wool substitution for WUI zones. Every estimate includes a blower-door test where applicable, written scope, and written warranty before anyone lifts a tool. Call (831) 534-3206 for an exact quote - estimates are free, and we offer a Free Second Opinion on any written estimate you’ve already received.
Serving Los Gatos, CA - Our Local Coverage Area

We’re based in the Los Gatos 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 - Reflectix Insulation in Los Gatos
Yes, for interior attic ceiling applications where the radiant barrier faces the living space and maintains proper air gap. No, for exterior roof deck or wall applications in WUI zones - those require non-combustible materials like mineral wool. We verify your property’s WUI status before quoting. Call (831) 534-3206 and we’ll check the overlay map with your address.
The marine fog funneling through the Los Gatos Hills creates ambient moisture levels 15-30% higher than Campbell or Santa Clara flatlands. That moisture penetrates attic ventilation, condenses on cool roof decking, and gets trapped against Reflectix surfaces. Without proper vapor management and ventilation, delamination and foil corrosion accelerate from years to seasons. Our fix: seal air leaks first, verify ventilation adequacy, then install.
Visible foil flaking or bare patches, sagging sections where staples or tape have failed, condensation stains on roof decking or rafters beneath the barrier, and noticeably hotter attic temperatures than when originally installed. In Los Gatos hillside homes, also check for mold odor in crawl spaces - failed vapor barrier below creates problems above. Call (831) 534-3206 for an inspection and written assessment.
Yes, and these foundations require specific attention. The open air beneath post-and-pier construction in Los Gatos hills admits more moisture than slab-on-grade homes, and the pier spacing creates uneven subfloor support that complicates vapor barrier installation. We use thicker mil-rated Reflectix or equivalent products, seal all seams with compatible tape, and often pair with closed-cell spray foam at rim joists for full vapor control. Every crawl space job gets a Documented Photo Record.
Reflectix radiant barrier alone does not satisfy Title 24 thermal envelope requirements - it reduces radiant heat transfer but provides minimal R-value. For compliance, Los Gatos homes need reflective barrier plus adequate blown-in or batt insulation depth, or spray foam in specific assemblies. Title 24 also references current fire safety standards, so hillside homes face the additional WUI material restrictions. We specify the complete assembly, not just the radiant barrier layer, and document compliance path in your written scope. Call (831) 534-3206 for a Title 24-compliant estimate.
Service Areas Near Los Gatos

We run Reflectix and full envelope work throughout the South Bay. Beyond Los Gatos service area proper, you’ll find us regularly in Reflectix service in Saratoga for similar hillside WUI jobs, Reflectix service in Campbell for flatland retrofits with different moisture profiles, plus Cupertino, Santa Clara, and San Jose. Each city’s building stock and microclimate shape how we spec the work.
Book Your Reflectix Service in Los Gatos Today
Call (831) 534-3206 to schedule your free estimate. A live person answers 24/7. We’ll review your home’s WUI status, assess existing Reflectix condition, and deliver a written price and scope before any work starts. Same-day appointments available for urgent moisture or failure issues.
Written by Wes Okafor, Owner at Topside Attic Insulation Campbell, serving Los Gatos since 2016.