Fast, Reliable Attic Insulation Across Tujunga
Attic insulation in Tujunga, CA typically costs $1,800 – $4,600 for a standard single-story ranch, and our team at North Tustin Insulation can usually get your attic sealed and insulated in a day or two. The catch in Tujunga is that insulation alone won’t solve the problem. Your attic also has to fight the canyon-to-valley temperature swing and ember-laden Santa Ana winds that Valley-floor cities like Burbank simply don’t deal with. We’ve worked on dozens of homes off Foothill Boulevard, Commerce Avenue, and throughout 91042 and 91043, and we know what these older attics actually need. Call (877) 265-5712 for a free estimate and an honest read on your attic.

Why North Tustin Insulation Is Tujunga’s Preferred Attic Insulation Company
Tujunga homeowners keep calling us back because we treat air sealing and vent screening as part of the insulation job, not an upsell. That matters here more than most places. A ranch house off Mt. Gleason Avenue has different failure points than a hillside property near Seven Hills, and a crew that just blows fiberglass and leaves won’t fix either one properly. Allen Decker built North Tustin Insulation around a simple idea: match the material and the method to the house, not the other way around. That’s why we carry eight insulation brands across fiberglass, mineral wool, cellulose, and spray foam, and why we don’t push one product on every Tujunga job.
Our Attic Insulation team knows what these 1940s – 1970s ranches look like from the inside out. Settled fiberglass, open eave gaps, unscreened gable vents, and top plates that were never sealed. We fix all of it. When you call, you get straight answers about what’s worth doing now and what can wait.
Insulation Contractors in Tujunga
Insulation Contractors in Tujunga do more than haul batts into an attic. The job here means assessing what’s already up there, usually settled or rodent-soiled legacy fiberglass, then air sealing every penetration before new material goes in. A typical full attic insulation job in Tujunga runs $1,800 – $4,600 depending on square footage, access difficulty, and how much of the old material needs removal first. Hillside homes with irregular rooflines and exposed crawlspaces tend toward the higher end because there’s more to seal.
Attic Insulation Top-Up
Some Tujunga attics have insulation that’s still structurally sound but too thin for current R-value recommendations. We can blow GreenFiber cellulose or Owens Corning fiberglass directly over it to bring the attic to R-38 or R-49. A top-up runs $1,200 – $2,600 on most single-story ranches and takes about half a day.
Attic Insulation Replacement
When the old fiberglass has settled to an inch or been fouled by rodents and Santa Ana dust, topping it up just buries a problem. Full removal and replacement in Tujunga runs $2,500 – $4,600 for a standard ranch. We dispose of the old material, air seal the attic floor, and blow in fresh insulation rated for the canyon-adjacent climate.
Attic Ventilation in Tujunga
Attic Ventilation in Tujunga is where we spend a surprising amount of time, because canyon-edge homes take in ember-laden wind through unscreened eave and gable vents during fire season. Proper ventilation moves hot air out in summer and keeps moisture from condensing overnight in winter, but the wrong setup pulls in dust, ash, and embers. We routinely combine insulation upgrades with ember-resistant vent screening and soffit baffle repair. Ventilation prep and baffle work runs $400 – $1,200 depending on how many vents and how much soffit access exists.
Attic Baffles & Ventilation Prep
Before new insulation goes in, baffles need to keep soffit vents open and prevent material from choking off airflow. In Tujunga’s older homes, we often find original baffles stapled incorrectly or missing entirely. This work is straightforward but essential, especially for hillside homes where wind pressure against one roofline changes how the whole attic breathes.
Ember-Resistant Vent Screening
For homes against the canyon edge, standard mesh just isn’t enough. We install fine-mesh screens rated to block embers while still allowing airflow. It’s a small addition to the project that changes how well your attic survives fire season, and it’s standard practice on our Tujunga jobs now.

Trusted Brands We Service in Tujunga
We stock and install Owens Corning fiberglass, GreenFiber recycled cellulose, Demilec spray foam, and Johns Manville products, which covers most Tujunga homes across every budget and performance target. Because we carry multiple lines, the recommendation comes from what your attic actually needs. A tight hillside roof might call for Demilec closed-cell spray foam. A standard ranch with accessible attic space does fine with blown-in Owens Corning or GreenFiber. We keep material on hand for fast turnaround in 91042 and 91043, so we’re not waiting weeks on a distributor order.
Common Attic Insulation Problems We See in Tujunga Homes
- Settled old fiberglass from the 1940s – 1970s. Most Tujunga ranches still have their original insulation, now compressed to an inch or two. The homeowner thinks it’s working. It isn’t.
- Open eave gaps pulling in Santa Ana dust and embers. Canyon-adjacent homes get wind-driven debris through unscreened vents and unsealed eave lines, which fouls insulation and defeats any air sealing you’ve done.
- Uneven coverage on hillside rooflines. Irregular roof geometry means batts and blown-in material both leave gaps if the installer isn’t paying attention. Those gaps become cold spots in winter and radiant heat leaks in summer.
- No air sealing at top plates and penetrations. Tujunga’s sharp day-night temperature swing means any air leak costs you twice: heat pours out at night, and outside air pushes back in during the day. Insulation without air sealing is a half-job.
Pricing for Attic Insulation in Tujunga, CA
A top-up on a standard Tujunga ranch runs $1,200 – $2,600. Full removal and replacement runs $2,500 – $4,600. Ventilation and baffle work adds $400 – $1,200. What moves the number is square footage, attic access, how much old material needs pulling out, and whether the roofline is simple or irregular. Canyon-edge homes with hard-to-seal geometry tend to run higher because the air sealing takes longer. We give free estimates with line-item pricing so you know exactly what you’re paying for before we start. Call (877) 265-5712 to schedule a walkthrough.
We Also Serve Cities Near Tujunga
Beyond Tujunga, our crews cover Sunland, La Crescenta-Montrose, Shadow Hills, and Burbank. If you live in one of those communities, you’re close enough that we can usually schedule within the same week. Learn more about our work in the area on our Attic Insulation in Tujunga page.
Serving Tujunga, CA — Our Local Coverage Area
We’re based in the Tujunga 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 About Attic Insulation in Tujunga
Because Tujunga’s canyon-edge homes pull ember- and dust-laden air through attic vents and eave gaps during Santa Ana wind events, and unsealed top plates leak conditioned air year-round. New insulation in an unsealed attic is like adding a heavier blanket with the windows open. We air seal and screen as part of the job so the material we install actually does its work.
If the old fiberglass is dry and rodent-free, a top-up is usually fine. We blow Owens Corning or GreenFiber over the existing layer to bring the attic to R-38 or R-49 for $1,200 – $2,600. If the material is matted, water-stained, or full of pest waste, removal first is the better call at $2,500 – $4,600. Call (877) 265-5712 and we’ll check it during a free estimate.
The sharp day-night and canyon-to-valley swing means your attic has to handle both summer radiant heat in the 100s and winter overnight drainage air near freezing. We target R-38 minimum and recommend R-49 for most Tujunga homes, which is higher than what many Valley-floor contractors spec. The air sealing matters just as much as the number.
We carry Owens Corning and Johns Manville fiberglass, GreenFiber recycled cellulose, and Demilec spray foam, among others. That means the recommendation is driven by your attic, not by what we have on the truck. For most Tujunga ranches, blown-in fiberglass or cellulose over air sealing is the right fit. For tight hillside rooflines, Demilec closed-cell spray foam often makes more sense.
Yes. Irregular rooflines create more penetrations, more top plates, and more places for air to leak. We spend extra time sealing those before installing insulation, and we often use spray foam for the hardest-to-reach sections. The work takes longer and costs more than a standard ranch, but skipping the sealing step defeats the whole project.
Get Your Tujunga Attic Done Right
If your Tujunga home still has its original 1950s or 1960s attic insulation, or you’ve noticed the upstairs heating up by noon in summer and the rooms going cold overnight in winter, the fix is more than just adding material. It’s air sealing, vent screening, and the right insulation for a canyon-adjacent house. Call North Tustin Insulation at (877) 265-5712 for a free, no-pressure estimate. Allen Decker and our team will tell you exactly what your attic needs and what it costs, with no guesswork and no brand-pushing.
Written by Allen Decker, Owner at North Tustin Insulation, serving Tujunga and the surrounding canyon communities.