Spray Foam Insulation in Van Nuys — Same-Day Service, Done Right the First Time

Fast, Reliable Spray Foam Insulation Across Van Nuys

Spray foam insulation in Van Nuys typically runs $2.50 to $4.50 per board foot for open-cell and $4.50 to $7.50 per board foot for closed-cell, with most full attic jobs landing between $4,800 and $11,000 depending on square footage and access. We work throughout Van Nuys weekly, from the 91406 tract homes off Victory Boulevard to the 91411 apartment buildings near Vanowen, and we schedule most estimates within two to three business days. Our team knows Van Nuys attics well enough to spot the usual problems before we even climb the ladder. Call (866) 393-6041 and we’ll tell you what your attic actually needs, not what we’re trying to unload that month.

Why Laguna Hills Insulation Is Van Nuys’s Preferred Spray Foam Insulation Company

Garrett Lund started this company with a simple rule: stock eight manufacturer lines and let the house tell us which one fits. That means when we inspect a Van Nuys attic, we’re not walking in committed to a single foam brand. We carry Icynene and Demilec open- and closed-cell systems, Johns Manville and Owens Corning products, and GreenFiber cellulose for the cases where foam isn’t the right call at all.

Van Nuys homeowners call us because we’ll tell them when spray foam is the wrong choice. If your 1950s attic has knob-and-tube wiring that needs isolation first, we’ll say so before quoting. If blown-in fiberglass would do the job for half the cost, we’ll suggest that instead. That’s the material-agnostic approach: eight brands, three methods, one specialist who’s accountable to you, not to a single product line.

Spray Foam Attic Insulation in Van Nuys

Spray foam attic insulation in Van Nuys has to solve a problem most coastal LA insulation crews never face: unvented attics that routinely hit 150°F or higher from June through September. We spray directly onto the underside of the roof deck, sealing every penetration, gap, and crack so the attic becomes a conditioned space rather than a solar oven. In Van Nuys’s semi-arid valley climate, that change alone can drop second-floor temperatures by 10 to 15 degrees on a 100°F afternoon.

Open-cell on the roof deck

Open-cell foam from Icynene is the workhorse for most Van Nuys attics. It’s lighter, expands aggressively into tight rafter bays, and air-seals the ceiling plane so well that settled dust and outdoor air stay out. Open-cell is typically the more affordable option and makes sense when the attic will remain ventilated or when the home has sufficient headroom above the insulation.

Closed-cell where space is tight

Closed-cell foam from Demilec delivers roughly double the R-value per inch of open-cell. In Van Nuys homes with low-pitch roofs and shallow rafter bays, that extra density matters because there’s simply less room to build up insulation. Closed-cell also acts as a vapor barrier, which helps in the shoulder seasons when warm daytime air and cool nights create condensation cycles in the attic.

Spray Foam Wall Insulation in Van Nuys

Spray foam wall insulation in Van Nuys addresses a specific weakness of the local housing stock: 1940s through 1960s stucco tract homes whose wall cavities were built with no insulation at all. On a 1952 ranch near Kittridge Street in 91406, the exterior walls were empty except for aging cedar shavings and decades of dust. We drilled and injected open-cell foam into each stud bay, and the difference in summer wall heat transfer was immediate.

Wall cavity injection

For existing walls, injection foam is less disruptive than tearing out drywall. Technicians drill small access holes from the exterior or interior, snake the foam applicator into each cavity, and fill from bottom to top. The foam expands to seal every gap around electrical boxes, plumbing penetrations, and framing, addressing both thermal and air leakage in one pass.

Rim joist sealing

The rim joist is where the foundation meets the floor framing, and in Van Nuys tract homes it’s often a completely unsealed band around the entire house. Closed-cell foam on rim joists blocks the stack effect that pulls hot attic air down through wall cavities in summer. This also cuts the dust and rodent entry points common in older Valley neighborhoods.

Trusted Brands We Service in Van Nuys

We install and maintain spray foam systems from Icynene and Demilec, two of the most recognized names in open- and closed-cell foam, and we pair them with supporting products from Owens Corning, Johns Manville, and Knauf where the job calls for hybrid approaches. Because we’re not married to one manufacturer, we can match the product to your Van Nuys home’s specific failure point rather than forcing your house to fit the product we happen to stock that month. Our crews carry the full spread of application equipment for all eight brands we work with, so scheduling a foam job in 91411 or 91470 doesn’t wait on a distributor who only delivers to the Valley once a week.

Common Spray Foam Insulation Problems We See in Van Nuys Homes

• Foam over degraded rock wool: Many 1940s and 1950s Van Nuys attics still have original rock wool or cellulose that has settled to R-7 or less. Spraying foam directly over that compressed layer traps heat and moisture, accelerating the breakdown of the old material and creating a messy, low-performing sandwich. The right fix is removing or raking back the old insulation first, then air-sealing before any foam goes down.
• Knob-and-tube wiring in foam: Van Nuys homes built before roughly 1955 often have knob-and-tube circuits still active in the attic. Foam sprayed directly over live knob-and-tube creates a code violation and a potential fire risk because the wiring can’t dissipate heat. We isolate the wiring, coordinate with a licensed electrician where needed, and only then proceed with foam application.
• Missing thermal or ignition barriers: In unvented Van Nuys attics that hit 150°F or more, exposed spray foam on the underside of the roof deck can discolor, sag, or fail inspection without an intumescent coating or thermal barrier. The 150°F attic is the differentiating factor: coastal LA attics rarely exceed 120°F, but a Van Nuys attic in August demands a barrier that can handle sustained heat load.
• Roof deck foam separation in low-pitch attics: Low-pitch roofs common in Van Nuys tract housing mean shallow rafter bays and less room for foam to expand evenly. Poor application leads to gaps at the top of the bay, which becomes a thermal bypass that sends hot air straight through the ceiling. We check every rafter bay with a thermal camera after application, not just the ones easy to reach from the access hatch.

Pricing for Spray Foam Insulation in Van Nuys, CA

We Also Serve Cities Near Van Nuys

Our spray foam crews work regularly in Van Nuys plus the surrounding Valley communities: Valley Glen, Sherman Oaks, Encino, and North Hills. If you’re in one of those neighborhoods and comparing insulation bids, the same material-agnostic approach applies. We’ll bring the full brand lineup and tell you honestly which product fits, even if it’s the less expensive option. See our main Spray Foam Insulation service page for details on every method we install.

FAQs About Spray Foam Insulation in Van Nuys