Fast, Reliable Spray Foam Insulation Across North Hollywood
Spray foam insulation in North Hollywood is the most direct fix for 70-year-old tract homes that leak cool air through every top plate and penetration. We work the same 91605 and 91606 grids every week, so we know exactly what those shallow low-pitch attics look like in August. If your stucco ranch off Lankershim or Vineland bleeds cool air while the AC runs nonstop, call (866) 566-0304. We’ll come out and tell you honestly what’s going on up there before you spend a dollar.
Why East Los Angeles Insulation Co Is North Hollywood’s Preferred Spray Foam Insulation Company
We’re a dedicated insulation crew, not a general contractor juggling three trades. That matters in North Hollywood, where the job is rarely just “spray some foam.” Most homes here were built between 1948 and 1958, and their attics need air-sealing, duct evaluation, and foam, done in the right sequence or the foam underperforms. We carry eight brands because one product doesn’t fit every shallow gable roof in the 91615, 91616, and 91618 zips. Homeowners call us after their second hot summer in the same house, tired of rooms that won’t hold a temperature.
Ruben Acosta runs this team, and he’s the one who walks North Hollywood attics before we quote. That’s the difference. You get a real scope of work from someone who’s been in your specific attic geometry, not a boilerplate number over the phone. Response time to North Hollywood from our East Los Angeles base is tight, and we stage for the Valley heat so the crew and the foam cure cycle both survive a 105°F day.
Spray Foam Attic Insulation in North Hollywood
Spray foam attic insulation in North Hollywood is the service we recommend most often, and it’s not close. The original rock-wool batts in these 1950s attics have settled to nothing, and the HVAC ducts running through that space are roasting in 140°F air from June through September. Closed-cell foam applied to the underside of the roof deck moves the thermal boundary to the roofline. That means the ducts are no longer sitting in a superheated box, and the attic itself becomes semi-conditioned space.
This job costs between $4,500 and $9,800 for a typical 1,000 to 1,500 square foot North Hollywood ranch, depending on roof deck square footage and whether we’re foaming the gable ends too. We always air-seal top plates, wire penetrations, and plumbing chases first. Skipping that step on a 1952 minimal-traditional is the number one reason foam jobs underdeliver here.
Air-Sealing Before Foam
The sequence matters more than the foam itself in 91605 tract homes. Un-faced original batts and open top plates mean the ceiling is a sieve. We seal every penetration we can reach before the first Icynene pass.
Duct Work in the Attic
Factory-built ducts in uninsulated Valley attics lose a staggering amount of cooling capacity. When we foam the roof deck, those ducts finally live in conditioned air, which is the real efficiency win.
Spray Foam Wall Insulation in North Hollywood
Spray foam wall insulation in North Hollywood addresses the other half of the problem these old stucco homes have: empty wall cavities. Most 1940s and 1950s tract homes on the 91601 side went up with no wall insulation at all, just stucco, felt paper, and open stud bays. That’s why west-facing bedrooms off Burbank Boulevard and Magnolia never cool down until midnight.
For existing walls, we inject open-cell foam through small ports drilled in the stud bays. It fills the cavity, seals gaps, and adds meaningful R-value without tearing out drywall. A full exterior wall retrofit on a 1,200 square foot ranch typically runs $3,200 to $6,500 in North Hollywood, depending on access and the number of penetrations. New construction or major remodels get closed-cell applied directly to the studs before drywall goes up, which costs $2.80 to $4.20 per square foot of wall area.
Open-Cell Injection for Existing Homes
This is the least invasive way to fix uninsulated stucco walls on occupied tract homes. The expansion fills irregular cavities and old termite channels. It also quiets Valley traffic noise from the 170, which is an underrated benefit.
Closed-Cell for New Builds and Gut Renovations
When walls are open on a NoHo Arts District remodel or an ADU project, closed-cell gives you an air barrier and vapor control in one pass. Demilec and Icynene both perform well here, and we stock both.
Trusted Brands We Service in North Hollywood
We install Icynene and Demilec spray foam on most North Hollywood jobs, and we’re direct with homeowners about why. Icynene’s open-cell works well for roof deck applications in shallow Valley attics where you want some vapor permeability. Demilec coats the same geometry with more structural rigidity. For homeowners who prefer mineral wool or recycled-content options, we also stock Rockwool and GreenFiber, but the spray foam brands are the workhorses for this housing stock. We keep local stock staged for North Hollywood service calls so a second trip for material doesn’t stretch a one-day attic job into three.
Common Spray Foam Insulation Problems We See in North Hollywood Homes
- Foam over settled original batts without air-sealing. The 70-year-old ceiling plane still leaks around every top plate and wire penetration. The foam looks fine, but the house still won’t hold temperature, and now the fix costs twice as much.
- Foam in a vented attic with uninsulated ducts. Spraying the roof deck without first evaluating the duct runs just seals a superheated duct problem inside a foam box. We check the ducts before we ever pop a foam gun.
- Cure-cycle problems during 100°F-plus Valley heat waves. Foam needs the right temperature and staging window to cure correctly. We schedule North Hollywood attic work for early mornings during heat spells and plan Santa Ana wind days around the roof deck access.
- One-size-fits-all foam specs on shallow low-pitch gable roofs. A 4/12 roof over a 1,000 square foot ranch doesn’t have the same ventilation geometry as a 6/12 in the hills above Universal City. The foam thickness, venting plan, and air-sealing scope have to match the actual attic.
Pricing for Spray Foam Insulation in North Hollywood, CA
Here’s what we quote on North Hollywood homes in 2026. Attic roof deck spray foam on a standard 1,000 to 1,500 square foot ranch runs $4,500 to $9,800, air-sealing included. Wall injection for uninsulated stucco exteriors runs $3,200 to $6,500 depending on access and stud bay depth. Rim joist spray foam, common on the crawlspace homes along the 91601 grid, runs $1,400 to $2,900. Garage ceiling foam on detached Valley garages runs $1,800 to $3,400. What moves the number: attic depth, roof geometry, existing duct condition, and whether we’re doing walls and attic in the same trip. Call (866) 566-0304 for a free estimate. Ruben walks the home, tells you what you need and what you don’t, and the number doesn’t change unless the scope does.
We Also Serve Cities Near North Hollywood
Our crews cover the whole east Valley corridor. We work in North Hollywood every week, and we regularly run jobs in Studio City, Universal City, Burbank, and Valley Glen. If you’re a homeowner on the edge of any of these service areas, call and we’ll tell you straight if we can get there. The answer is usually yes. For the full breakdown of what Spray Foam Insulation involves, our service hub page walks through every application method and brand we carry.
Serving North Hollywood, CA - Our Local Coverage Area
We serve North Hollywood and nearby communities. Use the map below to see the area we cover. If you’re nearby, we can almost certainly help.
FAQs About Spray Foam Insulation in North Hollywood
A shallow low-pitch attic in the 91605 or 91606 grid routinely hits 135°F to 145°F on a 100°F Valley afternoon, and that heat soaks through the ceiling and superheats the duct runs. Spray foam on the roof deck cuts that attic temperature dramatically because the sun’s heat stops at the roofline. Homeowners who air-seal and then foam the roof deck can lower their summer cooling costs, with the biggest wins on homes where the ducts run through the attic. Call (866) 566-0304 if you want us to check your attic temperature and duct layout before you commit to a scope.
We can get a crew to most North Hollywood addresses within 24 to 48 hours for an estimate, and we schedule the work itself around the heat. Emergency calls, like a foam job that’s failed or a remodel that needs walls foamed before drywall, get priority. If you’re in the middle of a heat wave and your attic is baking, call (866) 566-0304 in the morning and we’ll tell you when we can be there that week.
We cover 91601, 91615, 91616, and 91618, including the NoHo Arts District, the tract grid east of Lankershim, the neighborhoods around Valley Plaza, and the streets off Magnolia and Burbank Boulevard. If you’re on the border with Valley Glen or Burbank, we still run the call. Call (866) 566-0304 with your cross streets and we’ll confirm the schedule.
North Hollywood pricing sits right in line with Studio City and Burbank, usually within $200 to $400 for the same scope. The variable is the attic itself. These 1940s and 1950s tract homes need more air-sealing prep than newer construction, which adds a little labor but pays back fast in lower cooling bills. Call (866) 566-0304 for a straight quote on your specific roof deck and wall cavities.
Yes. Icynene and Demilec both carry manufacturer product warranties, and we stand behind our installation with a workmanship guarantee. We don’t hide behind the manufacturer on install issues. If the foam wasn’t applied right or the air-sealing failed, we fix it. Call (866) 566-0304 and ask Ruben about the warranty terms on the specific product you’re considering.
If your North Hollywood home is still running the original insulation it was built with, or none at all, the fix isn’t another window AC unit. It’s sealing the envelope and stopping the heat where it enters. Call (866) 566-0304 and we’ll walk your attic, check your ducts, and tell you exactly what this house needs to finally hold a temperature. Free estimates, no pressure, just a specialist who’s spent years in these specific attics.
Written by Ruben Acosta, Owner at East Los Angeles Insulation Co, serving North Hollywood and the San Fernando Valley.