Insulation Company in North Hollywood - Free Estimate, Written Price Up Front

Insulation Company in North Hollywood, CA

Blown in insulation is the most common retrofit we install in North Hollywood, and for good reason. Thousands of homes across the 91605 and 91606 tract grids were built between 1947 and 1958 with nothing in the walls and, at best, a thin layer of settled rock wool in the attic. Couple that with summer highs that routinely hit 105°F, and you get houses that fight their air conditioners all day. We’re East Los Angeles Insulation Co, and we’ve served North Hollywood homeowners since 2018 with blown in cellulose, fiberglass, and loose fill systems matched to each house. Whether your bill is out of control or one bedroom is always 10 degrees hotter, call (866) 566-0304 and we’ll tell you exactly what’s going on in your attic.

Call (866) 566-0304

Why North Hollywood Homes Are Different

North Hollywood is ground zero for the San Fernando Valley’s post-war tract housing boom. The neighborhoods east of the NoHo Arts District, particularly the 91605 and 91606 grids, were thrown up fast in the late 1940s and early 1950s to house returning veterans and aerospace workers. Builders used stucco over wood frame, low-pitch gable roofs, and shallow vented attics. Insulation was an afterthought. Many of the original minimal-traditional homes in this area still have no wall insulation at all, and the attic insulation that does exist has settled to half its original depth after 70 years of HVAC retrofits, rewiring jobs, and roof leaks.

Then there’s the climate. This is the eastern San Fernando Valley, where summer highs sit between 100 and 110°F for weeks at a time, and Santa Ana winds push dry, scorching air across the Valley floor. Your attic, on a 105°F afternoon, can hit 140°F or higher. Heat radiates down through the ceiling all evening, so your AC keeps cycling long after the sun goes down. The homes weren’t designed for this. The insulation we install has to account for shallow attic cavities, decades of disturbed ductwork, and the specific heat-load profile of a stucco tract house in the Valley.

Our Main North Hollywood Services

These are the two services North Hollywood homeowners call us about most often. Both address the core problem: a house that can’t hold its conditioned air because the attic and building envelope were never properly sealed and insulated.

Attic Insulation in North Hollywood

Most North Hollywood attics we inspect have settled fiberglass or original rock wool batts that have compressed to R-11 or less. Worse, the batts were often installed without eave baffles, which means the soffit vents are blocked and the attic never breathes. We treat attic insulation as a dedicated service, not an upsell. In North Hollywood, that means checking the existing depth, air-sealing the top plates and penetrations, adding baffles where needed, and bringing the attic up to a true R-38 to R-60 before we install anything. For the full breakdown of what’s involved, read about Attic Insulation in North Hollywood.

Spray Foam Insulation in North Hollywood

For homeowners in the 91605 and 91606 grids who are tired of fighting dust, drafts, and 140°F attic air, spray foam seals the envelope instead of just slowing heat transfer. Closed-cell foam on the attic floor or roofline stops the stack effect that pulls Valley heat downward. It also adds structural rigidity and a moisture barrier, which matters in older stucco homes with cracking exterior finishes. We spray Icynene and Demilec systems, both field-proven in hot-climate retrofits. For specifics on application methods and what to expect, see Spray Foam Insulation in North Hollywood.

Blown In Insulation in North Hollywood

Blown in insulation is the workhorse retrofit for North Hollywood’s 1940s and 1950s tract homes. Most of these attics have shallow, vented cavities with original batts that have settled to R-8 or R-11, and the houses themselves have no wall insulation. Blowing in a dense layer of cellulose or fiberglass over and around the existing material is the fastest, least disruptive way to bring a 70-year-old attic up to R-38 or R-49 before the next heat wave. It also fills the irregular gaps around trusses, vents, electrical boxes, and duct collars that batts leave open. We install multiple GreenFiber and CertainTeed blown in systems, matched to the attic depth and venting situation. If you’re looking for a broader look at blown in methods and materials, see our main Blown In Insulation page.

Cellulose Insulation

Signs you need it

Your attic insulation depth measures under 6 inches, or you can see bare drywall in spots because the old material has settled unevenly over the years.

What it costs in North Hollywood

Cellulose blow in runs $2.80 – $5.20 per square foot installed in North Hollywood, depending on attic depth and access.

How we do it

We air-seal the top plates and major penetrations, install eave baffles if your soffit vents are blocked, then blow dense-pack cellulose to a uniform R-38 depth across the entire attic floor.

Blown In Attic Insulation

Signs you need it

Your second floor or hallway ceiling is hot to the touch in summer, or your AC runs for hours without dropping the thermostat below 80.

What it costs in North Hollywood

Blown in attic insulation in North Hollywood typically costs $2.60 – $5.85 per square foot installed, with most 1,200-square-foot attics landing between $3,100 and $7,000 before any air-sealing add-ons.

How we do it

We run a hose to the attic, blow fiberglass or cellulose evenly to code depth, and fluff it to the manufacturer’s settled-R-value specification so it doesn’t compact and lose performance in five years.

Blown In Cellulose Insulation

Signs you need it

You have old, thin batts in the attic and want a product that fills gaps completely, offers better sound control, and resists air movement through the insulation layer.

What it costs in North Hollywood

A blown in cellulose job in North Hollywood runs $2.80 – $5.20 per square foot installed, with GreenFiber recycled-content product at the higher end of that span.

How we do it

We remove any moisture-damaged material, seal the attic floor penetrations, and blow GreenFiber cellulose or equivalent to the target R-value with a consistent density that won’t settle below spec.

Blown In Fiberglass Insulation

Signs you need it

Your attic has access issues or fragile ceiling framing where a lighter product is the safer call, or you want a product with a long track record in ventilated attics.

What it costs in North Hollywood

Blown in fiberglass in North Hollywood typically comes in at $2.60 – $4.40 per square foot installed, lower than cellulose on most attics.

How we do it

We blow loose-fill fiberglass over the existing material to bring the total depth to R-38 or R-49, making sure the fill stays light and even over the ceiling joists.

Loose Fill Insulation

Signs you need it

Your attic has a lot of odd angles, ductwork, or cross-bracing that batts can’t fit around, and you need full coverage without cutting.

What it costs in North Hollywood

Loose fill insulation in North Hollywood averages $2.60 – $4.80 per square foot installed, depending on depth and whether we’re topping off existing material or starting fresh.

How we do it

We remove any saturated or rodent-soiled material, then pump loose fill through a hose at a controlled density to fill every cavity and corner without leaving low spots.

What Blown In Insulation Costs in North Hollywood

How long does blown in insulation last in a North Hollywood attic?

A properly installed blown in job lasts 40 to 60 years in a ventilated Valley attic, but it only performs as designed if the attic stays dry and the soffit vents stay unblocked. If you’re topping off 70-year-old material, ask us about air-sealing first.

Can you blow insulation over old batts in a North Hollywood house?

Yes, as long as the old batts are dry and not infested, we can blow new material right over them. In North Hollywood’s post-war tract homes, this is the standard retrofit approach and saves you the cost of full removal. Call (866) 566-0304 for a quick attic check.

Brands We Service in North Hollywood

We stock and install CertainTeed and GreenFiber blown in products, plus Icynene and Demilec spray foam systems, on North Hollywood jobs every week. Parts and spare material are kept on our trucks, which keeps most appointments to a single visit. See our brands for the full lineup.

Pricing for Insulation Company in North Hollywood, CA

Neighborhoods We Serve in North Hollywood

We work across all of North Hollywood’s residential zones, from the post-war tract grids east of the NoHo Arts District to the newer multi-family and mixed-use infill near the Orange Line. Our technicians are in and around North Hollywood throughout the week, and emergency heat-related calls are usually reached same day.

• NoHo Arts District and surrounding streets
• 91605 tract grid east of Lankershim
• 91606 neighborhoods south of Sherman Way
• Valley Village-adjacent blocks along Magnolia
• Orange Line corridor multifamily infill

Service Area – Cities Near North Hollywood

Our North Hollywood crew regularly works the surrounding San Fernando Valley and nearby foothill communities. If you’re in Studio City, CA, Universal City, CA, Burbank, CA, or Valley Glen, CA, give us a call and we’ll schedule the same team.

FAQs About Insulation Company in North Hollywood