Reflectix Insulation in Glendale, CA | Thermal Insulation Co
We provide independent Reflectix service across Glendale, and the job almost always comes down to one thing: whether the foil has the air space it needs to actually reflect heat instead of conducting it. Most failed radiant barrier jobs in this city were installed wrong from day one, not worn out. If your attic runs hot or a west-facing room cooks every afternoon, call Thermal Insulation Co at (855) 382-3451 for a free estimate. We’re the insulation specialist Glendale homeowners call when a previous contractor’s Reflectix work didn’t solve the problem.

Why Glendale Residents Choose Us for Reflectix Service
Ruben Castellano, our owner, learned building science at East Los Angeles College before spending nearly two decades diagnosing why homes across the San Gabriel Valley and east LA corridor stay uncomfortable even after other contractors have been through them. That background matters with Reflectix because reflective insulation only performs when it’s treated as an assembly: emissivity, air gap, venting, and permeance all have to line up. We’re not a general contractor who occasionally staples foil. Insulation is our only trade, and Reflectix sales & service is work we do constantly in Glendale’s stucco and plaster housing stock. We carry the full Reflectix line and spec the correct perforated or non-perforated configuration for each application, because using the wrong facing orientation is the difference between a working radiant barrier and trapped moisture.
Common Reflectix Insulation Problems We Solve in Glendale
- Foil stapled tight against the roof deck with no air space. This is the most common failure we see in Glendale attics. Reflective foil needs a gap to radiate heat back out; pressed flat against the rafter, it conducts heat right through. Homes in the 91202 and 91207 hills get hit by intense afternoon west and southwest sun, and a tight-stapled roll means the attic never actually cools down.
- Trapped moisture behind foil in older plaster-and-stucco walls. Many 1920s-1940s Spanish Colonial and bungalow homes in Glendale have plaster interiors with no modern vapor management. Non-perforated Reflectix installed in a wall cavity can block moisture from escaping, leading to condensation that degrades the facing and, worse, the framing behind it. We see this in flatland retrofits where someone treated a wall like an attic.
- Perforated and non-perforated rolls swapped in the wrong location. The perforated product lets moisture pass; the non-perforated doesn’t. Put non-perforated where you need permeance – like a crawl space or wall assembly – and you’ve sealed moisture in. We re-spec the correct roll for Glendale’s mix of raised foundations and slab-on-grade builds.
- Dust and Santa Ana ash fouling the reflective surface. Hillside attics in Glendale take on a lot of wind-driven dust during the late summer and fall. Over several seasons, a layer of fine grit settles on the foil’s surface and drops its reflectivity significantly. The foil is still there, but it’s not reflecting nearly as much heat. We see this most in homes along the Verdugo Woodlands and the upper blocks of 91207.
- Attic venting that was never addressed before the foil went up. Reflectix is not a substitute for air movement. If your Glendale attic has blocked soffit vents or no baffles, adding foil alone won’t fix the heat problem – it just moves where the heat sits. We solve the venting first, then install the radiant barrier, which is the order a lot of quick-fix companies skip.
Reflectix Service in Glendale: What Local Conditions Mean for Your Equipment
Here’s the thing about Glendale that changes how Reflectix repair in Burbank and nearby areas differs from Santa Monica or Culver City: this city is split down the middle by a thermal line. The hillside blocks in 91202, 91206, and 91207 – especially around Verdugo Woodlands – get pounded by afternoon west and southwest sun that turns stucco walls into heat sinks and pushes attic temperatures past 140°F on summer days. The flatland blocks in 91201, 91203, 91204, and 91205 fight a different battle: aging, minimally insulated walls and garages baking in a hot basin where the real losses are in the attic-roof assembly rather than the walls. That split means we never apply a one-size-fits-all Reflectix approach. A hillside attic in 91202 where the sun hits hard from 3 p.m. to 7 p.m. needs a perforated radiant barrier with properly spaced baffles and verified soffit venting before foil ever goes up. A flatland garage ceiling in 91204 might be better served by air sealing plus a foil-faced assembly on the garage ceiling, not the roof deck. If a room in your house has always been the wrong temperature, there is usually a straightforward reason – and it is worth knowing what it is before spending money on anything.
Reflectix Models & Products We Service in Glendale
We work with the full Reflectix product line and stock the most common rolls for fast Glendale turnaround: the Reflectix Double Reflective Insulation Roll with bubble-core foil, the Double Reflective Foil Insulation with white poly facing for finished spaces, the Reflective Foam Core Insulation for garage and workshop applications, and the perforated Reflectix Radiant Barrier for attic roof decks. When existing Reflectix is sound but installed wrong, we re-hang and re-space it rather than sell you a full replacement. We only recommend new material when the facing is torn, dust-fouled beyond cleaning, or moisture-degraded. And we spec genuine Reflectix rolls, not generic foil bubble wrap of unknown emissivity, because the assembly’s rated performance depends on the actual product.
Reflectix Service Pricing in Glendale
Reflectix service in Glendale varies by what we find once we get into the attic. A straightforward re-hang job where existing foil is in good shape but needs proper air spacing runs less than a full replacement with vermiculite remediation and new baffles. Most radiant barrier installations for a typical Glendale attic fall in the $1,800 to $4,500 range, depending on square footage, venting work, and whether we’re dealing with an old vermiculite situation that needs safe containment first. Every estimate is free, and we walk you through exactly what’s wrong and what it costs to fix before any work starts. Call (855) 382-3451 and we’ll schedule an attic inspection at a time that works for you.
Serving Glendale, CA — Our Local Coverage Area
We’re based in the Glendale area and know this community well, including La Cañada Flintridge Reflectix service calls. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.

FAQs – Reflectix Insulation in Glendale
Yes, when it’s installed as an assembly, not just stapled up. A perforated Reflectix radiant barrier with proper air space, working soffit venting, and clean airflow will reduce attic heat gain measurably in Verdugo Woodlands and the 91202 and 91207 hills. The foil reflects radiant heat from the roof deck back outward, but only if there’s a gap for that radiation to move through. We saw this in Verdugo Woodlands, where our crew pulled a sagging Reflectix bubble-foil roll that a prior owner had stapled directly to the rafters with zero air space, doing nothing for the afternoon west-sun heat load. We removed it, bagged vermiculite found under old loose fill, added baffles at the soffit vents to keep airflow, and re-hung perforated Reflectix with a proper gap along the roof deck. Attic peak temperatures came down measurably and the upstairs rooms stopped cooking by 3 p.m. Call (855) 382-3451 for an attic evaluation – estimates are free.
Leave it alone and call us before disturbing it. Glendale’s hillside attics can still hold original 1950s-70s vermiculite, which sometimes contains asbestos fibers. Any Reflectix radiant-barrier install in 91202 or 91207 should start with identification and safe handling of that material before any foil goes up – a step flatland tract attics almost never require. We’ll assess what’s there, recommend testing if needed, and contain or remove it safely before we proceed with the radiant barrier work. Call (855) 382-3451 for an assessment.
For most flatland homes in Glendale, the better first move is air sealing plus adding blown-in insulation to the attic floor, not a radiant barrier on the roof deck. The 91201 and 91204 blocks run hotter because of poorly insulated attic floors and garage ceilings, and the heat that drives those attics up is conduction through the ceiling, not radiation from the roof deck. Blown-in cellulose or fiberglass attacks that directly. If we see a specific radiant heat problem – like a garage ceiling baking all day – we’ll recommend Reflectix there specifically. Call (855) 382-3451 for a free estimate on what your particular attic actually needs.
It depends on the assembly and where moisture needs to move. In Glendale’s older stucco-and-plaster walls, you generally want perforated Reflectix where any vapor might be present, so moisture can dry out instead of getting trapped against the foil. Non-perforated belongs only where you’re deliberately creating a vapor-blocking layer and the assembly is designed for it. Crawl spaces in Glendale’s raised-foundation homes usually need perforated material to avoid sealing ground moisture into the floor assembly. We’ll spec the correct roll for your specific home, not default to whatever is on the truck. Call (855) 382-3451 and we’ll tell you exactly which configuration your house needs.
Dust settling on the reflective surface is the quiet performance killer in Glendale’s hillside attics. Santa Ana winds blow fine grit and wildfire-smoke ash through attic vents, and over several seasons that dust layer drops the foil’s emissivity performance noticeably. The foil looks intact, but it’s reflecting far less heat than it did when it was new. We clean and inspect foil surfaces during service calls, and when the facing is too fouled to restore, we replace it and add better filtration at the soffit vents so the new material doesn’t degrade the same way. Call (855) 382-3451 if your attic foil has visible dust buildup or your upstairs rooms have started running hotter again.
Service Areas Near Glendale
We serve all of Glendale, including the 91201, 91203, 91204, 91205, 91202, 91206, and 91207 neighborhoods, and we also run Reflectix service calls into nearby communities. If you’re in Van Nuys, Valley Glen, Sherman Oaks, Encino, Studio City, or North Hills and need a radiant barrier looked at, we’re often already working in the corridor. See our full Glendale service area or check Reflectix service in Culver City and Reflectix service in Santa Monica for those coverage details.
Book Your Reflectix Service in Glendale Today
If your Glendale attic runs hot, a room won’t cool down, or you suspect old Reflectix was installed wrong, call (855) 382-3451 today for a free estimate. We can often schedule same-week attic evaluations, and we’ll tell you exactly what’s wrong before any work starts.
Written by Ruben Castellano, Owner at Thermal Insulation Co, serving Glendale, Reflectix repair in Silver Lake, and the surrounding San Gabriel Valley.