Fast, Reliable Spray Foam Insulation Across Burbank
Spray foam insulation in Burbank runs $2.50 – $6.50 per board foot depending on whether you need open-cell or closed-cell, with most whole-attic jobs landing between $4,800 and $11,000. For homes under the Hollywood Burbank Airport approach paths, closed-cell foam in exterior walls is the single most effective upgrade we install for cutting low-frequency jet rumble. Our crews know Burbank’s stucco bungalows, hillside ranch homes, and detached workshops better than any generalist contractor ever will.

If you’re chasing higher energy bills or aircraft noise through a 1920s bungalow near downtown, call (855) 773-6429. Alan Whitcomb and our spray foam team can usually reach most Burbank neighborhoods the same week with a full assessment.
Why Placentia Insulation Is Burbank’s Preferred Spray Foam Insulation Company
We work in Burbank constantly. The housing stock here demands more from an insulation contractor than most San Fernando Valley cities: 1920s – 1940s California bungalows and Spanish Revival stucco homes near downtown with empty wall cavities, 1950s ranch tracts in the hills with thin attic batts, and detached workshops that need rim joist and door frame sealing. The specs change block by block.
Alan Whitcomb built Placentia Insulation around a single premise: match the material to the home, not the home to whatever’s on the truck. We carry eight brands, but for Burbank spray foam work we most often reach for Icynene and Demilec because they offer both open-cell and closed-cell chemistries. That matters here. A single-brand shop will sell you the one foam they stock. We choose based on whether the wall faces the airport, whether the attic needs sound attenuation or just thermal control, and whether the stucco has moisture risk.
Burbank homeowners routinely tell us the same thing: they’d rather talk to a specialist who thinks in R-value and decibels than a general contractor squeezing insulation between a bathroom remodel and a roof patch. That’s the business we built.
Open Cell Spray Foam in Burbank
Open Cell Spray Foam in Burbank is typically specified for attic penetrations, interior sound dampening, and spaces where air sealing matters more than maximum R-value per inch. In Burbank’s older homes, we use it heavily in attic kneewalls, rim joists, and workshop ceilings because it expands aggressively, seals irregular framing, and costs $2.50 – $4.00 per board foot installed.
Attic Penetrations and Sound Gaps
Open-cell foam earns its keep in Burbank attics where can lights, electrical boxes, and plumbing vents all leak air conditioned from the living space into a 140°F attic. Sealing those penetrations with open-cell cuts the thermal stack and reduces the aircraft noise that sneaks through ceiling cavities.
Rim Joists and Workshop Ceilings
Detached workshops are common in Burbank, and their rim joists are usually wide open to the crawl space. Open-cell foam installed along the rim joist line stops conditioned air from escaping and blocks a surprising amount of ambient noise. It’s also the right choice for garage ceiling spray foam under bonus rooms where closed-cell would be overkill.
Spray Foam Insulation Contractors in Burbank
Spray Foam Insulation Contractors in Burbank need more than a rig and a gun. They need to understand how 100°F summer afternoons affect foam cure times on south-facing stucco walls, how airport flight corridors dictate closed-cell placement, and how 1940s lath and plaster reacts to foam expansion. That’s the work we do every week.
Closed-Cell for Sound Walls
Closed-cell spray foam in Burbank runs $3.50 – $6.50 per board foot and is the only foam we recommend for exterior walls facing the flight path. At 2 inches, closed-cell adds structural rigidity and drops low-frequency noise transfer substantially. It also acts as a vapor barrier, which matters on Burbank’s stucco exteriors.
Wall Cavity Retrofit in Older Homes
Many 91501 and 91502 bungalows have zero wall insulation. We can inject open-cell or closed-cell into existing wall cavities through small access holes, but only after a moisture audit. Skipping that step on stucco homes is how you trap condensation and rot the framing from the inside out.

Trusted Brands We Service in Burbank
Our Burbank spray foam work is built on Icynene and Demilec products. Those two names cover both foam chemistries and give us the flexibility to spec open-cell in an attic penetration one day and closed-cell in a sound wall the next. We also stock CertainTeed and GreenFiber for homeowners who need blown-in or batt options in parts of the home where spray foam isn’t the right call. Eight brands in the warehouse means nobody in Burbank has to settle for whatever a single-brand shop happens to carry. We’re an insulation-only contractor; every tool, truck, and hour on the schedule is dedicated to this trade.
Common Spray Foam Insulation Problems We See in Burbank Homes
- Foam applied too thick in summer heat. On a 100°F Burbank afternoon, south-facing stucco walls can bake foam before it cures. The result is bubbles, poor adhesion, and an insulation layer that does nothing. We schedule wall sprays on those homes for early morning or fall back to a slower-rise formulation.
- Open-cell used where closed-cell was required. Under the airport approach, a wall cavity filled with only open-cell foam still transmits low-frequency rumble. We’ve seen homeowners pay for a full open-cell wall retrofit and then call us back because the jet noise barely changed. Closed-cell is the answer in those walls, not a second layer of open-cell.
- Moisture trapped against stucco. Older bungalows near downtown with no wall insulation often have decades of hidden moisture in the framing. Shooting foam into those cavities without checking first can seal that moisture in permanently. We run a moisture meter over the studs before any foam goes in.
- Ignoring the attic thermal stack. Burbank’s inland heat makes the attic the largest load on the cooling system. Homes with thin original batts leak air conditioning through every ceiling penetration. Foaming the attic floor penetrations cuts cooling demand more than adding insulation to the walls in most cases.
Pricing for Spray Foam Insulation in Burbank, CA
Open-cell spray foam in Burbank runs $2.50 – $4.00 per board foot installed. Closed-cell runs $3.50 – $6.50. A full attic air-seal and open-cell treatment on a typical 1,200-square-foot Burbank bungalow lands around $4,800 – $6,000. A closed-cell sound wall package for an exterior wall facing the flight path often adds $3,000 – $5,000 depending on wall area and access. Detached workshop rim joist and ceiling foam jobs typically run $1,500 – $3,500. We give free estimates with a written scope, never a vague verbal range. Call (855) 773-6429 and Alan will get you a number that means something.
We Also Serve Cities Near Burbank
Placentia Insulation runs spray foam crews throughout the San Fernando Valley and adjacent areas. Beyond our Spray Foam Insulation in Burbank work, we regularly serve homeowners in Universal City, North Hollywood, Glendale, and Studio City with the same brand-matched approach and same week scheduling. If you’re just over the border in any of those cities, call (855) 773-6429 and we’ll route a crew your way.
One more thing that sets Burbank apart, and it’s worth spelling out because it drives so many of our recommendations here. Burbank is a working media-production hub. Soundstages, studio offices, and post-production facilities sit blocks from residential neighborhoods, and the same airport that serves those studios sends passenger and cargo flights directly over homes in the 91501 through 91506 ZIPs. No neighboring city combines those two noise sources with this kind of older stucco housing stock. In the Rancho neighborhood (91505), our crew sprayed closed-cell foam in the walls of a 1940s Spanish Revival bungalow that sat under the airport approach. The homeowner wanted to kill the jet noise before adding a detached workshop. We also foamed the rim joists and sealed the oversized workshop door frame with open-cell foam, which cut the aircraft roar and stabilized the room for year-round use. The homeowner said it was the first time in years they could hold a conversation in the backyard without pausing for planes. That’s the job here.
For broader questions about foam chemistry, coverage, or how we match material to the home, see our Spray Foam Insulation service page.
Serving Burbank, CA — Our Local Coverage Area
We’re based in the Burbank 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 Spray Foam Insulation in Burbank
Yes. Closed-cell spray foam is the most effective material we install for reducing low-frequency aircraft noise through exterior walls. In Burbank homes under the flight path, we typically spec 2 inches of closed-cell in wall cavities facing the airport and open-cell in attic penetrations. The closed-cell adds mass and rigidity, which is what stops the rumble. Call (855) 773-6429 for a noise assessment and free estimate.
For a 1920s bungalow in 91501 or 91502 with empty wall cavities, we start with a moisture audit, then inject closed-cell foam into the exterior walls if the studs are dry. Open-cell works for interior walls and attic penetrations. The wrong call on a stucco bungalow is spraying open-cell into walls facing the airport; it won’t address the low-frequency rumble. Call for an exact scope and price; estimates are free.
High heat changes spray foam chemistry. On summer afternoons when Burbank pushes past 100°F, south-facing stucco walls can be too hot for a clean foam cure, causing bubbles and poor adhesion. We schedule wall sprays for mornings or use a slower-rise formulation for hot conditions. Attic work is unaffected by exterior wall temperature. We plan around the heat, not through it.
Detached workshops and oversized garages need the same two-part spray foam rig as a house, but the access is different. We use smaller-gun tips and sometimes scaffold to reach ceiling peaks and wide door frames. The real difference is sealing the rim joists and oversized door frames so the space holds conditioned air. We do this regularly in Rancho and the hillside neighborhoods. Call for a workshop-specific quote.
Open-cell foam is softer, expands more, and costs less per board foot; it’s best for attic penetrations, interior sound dampening, and rim joists. Closed-cell is denser, adds structural strength, acts as a vapor barrier, and is the best tool we have for blocking low-frequency noise from the airport. Burbank homes often need both, and we spec each based on where it goes. Call (855) 773-6429 to find out which walls need which foam.
Call Placentia Insulation for Spray Foam in Burbank
Whether you’re in a 1928 bungalow off Magnolia Boulevard, a ranch home in the hills above 91504, or a detached workshop in Rancho, we’ll match the right foam to the job. Alan Whitcomb runs the crew, and he’ll give you a straight answer on cost, timing, and what actually matters for your home. Call (855) 773-6429 for a free estimate, or ask about our open-cell and closed-cell options.
Written by Alan Whitcomb, Owner at Placentia Insulation, serving Burbank and the San Fernando Valley with spray foam, attic, and blown-in insulation.