Icynene Spray Foam Insulation in Woodland Hills: What to Know First
Icynene spray foam insulation in Woodland Hills typically costs $3.50 to $7.50 per board foot installed, depending on whether we’re applying open-cell or closed-cell product and how accessible the cavity is. Most attic spray foam jobs in Woodland Hills take one to two days, and you get a written price before anything gets sprayed. We’re an independent Icynene service provider, not an authorized dealer, which means we tell you the truth about what your existing foam is doing, what needs repair, and what can stay.

This page is for homeowners who already have Icynene in their attic, rim joists, or roof deck and need honest answers about repairs, reapplication, or spot work. It’s also for people researching whether Icynene is right for a Woodland Hills home. Know what goes in before the first board comes down. Call (559) 245-9223 and Neil Barron will walk you through exactly what you’re looking at, usually from the attic hatch with a flashlight.
How Icynene Products Fail – and How We Fix Them
Icynene makes a genuinely good open-cell foam, but no spray foam is set-and-forget forever. Here’s what we actually see in Woodland Hills homes:
- Classic series open-cell shrinkage at wall-to-ceiling seams. Icynene’s Classic open-cell foam can pull back from framing members after several years of thermal cycling. In Woodland Hills, where attic temperatures swing from the 40s to over 130 degrees seasonally, that movement gets worse faster than in coastal zones. The gap becomes a thermal bypass. We open the seam carefully, clean the surfaces, and respray the affected cavity with a compatible open-cell product.
- ProSeal rim joist air leaks from original install misses. Icynene ProSeal is often specified for rim joist and band joist applications, but if the original installer didn’t prep the sill plate or left gaps around plumbing penetrations, the seal fails within a year or two. We find these with an infrared camera and a hand test, then strip the bad section and respray to a full air seal.
- Open-cell foam in the wrong place, holding moisture against roof decking. We see open-cell Icynene sprayed against the underside of roof sheathing in older Woodland Hills ranch homes. Open-cell lets water vapor pass through, and without the right vapor diffusion layer it can hold condensation against the plywood after a cold night. We assess whether the foam needs removal and replacement with closed-cell, or whether a targeted fix will do.
- Yo Mama ads aside, rodent damage along the gable end. The hills around Warner Center and Woodland Hills proper have their share of roof rats and squirrels. They’ll burrow through open-cell Icynene like it’s bedding. We repair the damaged sections, trace the entry point, and recommend the exclusion work before we respray, so you’re not doing it twice.
- Faded install warranty paperwork and no local record of the original installer. Icynene’s product warranties are tied to the installing contractor’s workmanship record. If the original installer is gone or out of business, homeowners in Woodland Hills often call us to assess what’s covered, what’s not, and what a practical repair costs. We document everything in writing, including photos before and after.
Our Icynene Spray Foam Insulation Process
Here’s what happens when you call us about Icynene spray foam in Woodland Hills:
- 1
You call, a person answers. Not a voicemail tree. We ask about the problem, your home’s age, and what you’re feeling, seeing, or smelling.
- 2
Neil walks the attic with you on the phone or in person. We put eyes on the existing Icynene, check for gaps, discoloration, settling, and moisture. We carry an infrared camera on every visit.
- 3
We write the price down before any work starts. Down to the last bag of material. If the scope changes, the number changes in writing first, not after.
- 4
We mask and prep like it’s a nursery. Drop cloths across the hallway, shoe covers at the door, plastic sheeting at the attic hatch, and we use quiet tools when children are sleeping or on a school call.
- 5
We spray, cure, and test. After the foam sets, we check for air movement, document the finished result with photos, and show you the cleanup picture before the van pulls away.
- 6
You get the 365-Day Done Right Promise. If it’s not done right, we make it right. No debate, no fine print.
What Icynene Spray Foam Insulation Costs in Woodland Hills
Here’s what we quote most often in Woodland Hills, based on current material and labor pricing:
| Job Type | Typical Range |
|---|---|
| Attic floor or wall spot repair (open-cell) | $850 – $2,400 |
| Rim joist air seal (per 20 linear feet) | $700 – $1,500 |
| Roof deck insulation (closed-cell, 1,000 sq ft) | $4,200 – $7,000 |
| Full attic spray (open-cell, 1,200 sq ft) | $3,800 – $6,500 |
What moves the price: access (crawl spaces and low-pitch roofs in older Woodland Hills ranchers cost more), how much old foam has to come out, and whether we’re using open-cell or closed-cell product. You’ll have your exact written number before we touch a rafter. Call (559) 245-9223 for a free estimate.
Why Woodland Hills Homeowners Call Thistledown Insulation Woodland Hills for Icynene Work
We’re a Cedarwell-family company, which means we’re held to the Cedarwell Care Promise on every visit: shoe covers and drop cloths inside the home, a photo of the clean-up before leaving, pet-safe product options where a choice exists, and quiet tools when children are sleeping. We lay drop cloths across your hallway and wear shoe covers from the front door to the attic hatch, every time, included.
We install eight insulation brands, including Icynene, Demilec, Owens Corning, Johns Manville, and others, so we’re not married to one product. When Icynene is right, we say so. When a Reflectix radiant barrier makes more sense for your Woodland Hills sun exposure, we tell you that before we sell you foam. Background-checked, uniformed technicians show up on every job, and a live person answers the phone 24/7. Thistledown is the soft fluff of the thistle, one of nature’s lightest insulators. The name is a promise about how carefully we work.
FAQs
In most cases, no. The Icynene product warranty covers manufacturing defects in the foam itself, not the workmanship of the install. As an independent Icynene service provider, we document every repair with before and after photos and a written scope, so you have a clean record if you ever need to file a claim. Call (559) 245-9223 and we’ll help you sort out what’s covered, what’s not, and what a repair actually costs.
Yes, for most spot repairs like rim joist gaps, rodent damage, or small shrinkage seams. Larger jobs, like a full roof deck respray, usually run one to two days. Call us at (559) 245-9223 and we’ll tell you honestly what fits in a single visit and what needs a second day.
Repair is almost always cheaper, usually by a wide margin, unless the foam has absorbed water or been damaged over more than about 20 percent of the cavity. We inspect first, give you a written repair price and a written replacement price side by side, and let you decide with real numbers. Call (559) 245-9223 for a free estimate.
Yes, especially closed-cell foam on the roof deck. In Woodland Hills, where summer attic temperatures regularly hit 130 degrees or more, a properly sealed foam layer keeps that heat out of the living space and takes load off the AC. We see the difference on our infrared camera before and after every summer job.
Written by Neil Barron, Owner, Thistledown Insulation Woodland Hills at Thistledown Insulation Woodland Hills, serving Woodland Hills and nearby areas.