Icynene Attic Cleaning & Rodent Proofing in Los Angeles: What to Know First
We provide independent Icynene attic cleaning and rodent proofing across Los Angeles, with most single-family jobs completed in one visit. A typical cleanout, sanitizing, and exclusion job on a home with Icynene spray foam runs $1,400 to $3,800 depending on attic size, rodent damage, and how much foam needs repair or replacement. We’re not affiliated with Icynene, but as an independent Icynene service provider, our techs work on their open-cell and closed-cell foam systems weekly. If you’re reading this because you heard scratching above the ceiling or spotted droppings near the attic hatch, call (855) 657-3403 and a live person answers, 24/7.
How Icynene Products Fail - and How We Fix Them
- Icynene Classic open-cell foam gets rodent tunnels. Rats and mice carve nesting cavities through open-cell foam because it’s soft enough to chew. We see this most in homes along the LA River corridor and in older Valley neighborhoods where citrus trees and ivy give rodents cover. The fix is cutting back to solid foam, treating the damaged zone, then installing exclusion barriers at every entry point before patching the foam with compatible material.
- Icynene ProSeal and closed-cell foams hide urine saturation. Closed-cell foam doesn’t absorb liquid, but rodent urine pools on its surface and seeps into seams and fastener gaps. The ammonia smell gets trapped in the attic heat, and by August it’s unbearable. We remove the contaminated section entirely because surface cleaning won’t reach what’s wicked into the seam lines.
- Icynene MD-C-200 and similar medium-density foams delaminate from roof decking after rodent activity. When rodents nest between the foam and the wood, their body heat and moisture break the adhesion bond. You’ll see foam sagging away from rafters. We cut out the delaminated section and re-foam, which is the only repair that restores the air barrier.
- Icynene foam applied by a previous contractor with no thermal barrier becomes a code violation and a fire hazard. Open-cell Icynene in an attic that’s used for storage or has any ignition source needs a thermal or ignition barrier. If rodents have chewed through it, the barrier is compromised. We bring attics back to code while we’re doing the rodent work.
- Icynene’s open-cell foam holds LA’s summer humidity and traps rodent odors. Unlike fiberglass, open-cell foam is an air barrier, which means smells don’t vent out. In Woodland Hills or Studio City attics that bake to 130°F, the odor intensifies. Sanitizing has to happen after the contaminated foam comes out, not before, or the smell comes right back.
Our Icynene Attic Cleaning & Rodent Proofing Process
- 1
Call and talk to a person. You call (855) 657-3403, tell us what you’re seeing or hearing, and we schedule a visit. No voicemail tag.
- 2
Attic inspection and Icynene assessment. A background-checked, uniformed tech documents foam type, damage extent, rodent entry points, and contamination zones. We give you upfront pricing before any work starts.
- 3
Rodent exclusion first. If rodents are still getting in, cleaning and repair is wasted motion. We seal entry points with materials rodents can’t chew through in LA’s climate, where they’re active year-round.
- 4
Contaminated foam removal and sanitizing. We cut out urine-soaked, tunneled, or delaminated Icynene, vacuum the affected areas, and treat the decking with a hospital-grade antimicrobial that’s safe for the materials in your attic.
- 5
Foam repair and optional replacement. We patch with Icynene-compatible foam or re-spray the full area as needed. If your foam is beyond saving, we talk replacement options honestly, including Reflectix as a radiant barrier supplement where it makes sense.
- 6
Final walkthrough and the 90-Day Done Right Promise. We show you what we did and what we sealed. If anything isn’t right within 90 days, we make it right. That’s a written commitment, and it applies to every Icynene attic job.
What Icynene Attic Cleaning & Rodent Proofing Costs in Los Angeles
Here’s what we quote on a typical Los Angeles Icynene attic job, based on the square footage we’re actually working in:
- Small attic cleanout, no foam repair (up to 800 sq ft): $800-$1,200
- Mid-size cleanout with spot foam patch and exclusion (800-1,500 sq ft): $1,400-$2,400
- Full cleanout, sanitizing, exclusion, and foam section replacement (1,500-2,500 sq ft): $2,600-$3,800
- Heavy contamination or full re-foam after major rodent damage: $4,000+
What moves the price: foam type and how much needs cutting out, whether the roof pitch makes access tight, how many entry points need sealing, and whether you need a thermal barrier brought up to code. We give written, upfront pricing before we start, so there’s no end-of-job surprise. Call (855) 657-3403 for a free estimate. Most Icynene cleanouts in Los Angeles are done in one visit.
Why Los Angeles Homeowners Call Warmline Insulation Co. for Icynene Work
We’ve been doing this since 2011, and Neil Ashford, our owner, grew up in the San Fernando Valley. He learned building science at LA Trade-Tech and spent years in the field before starting Warmline, so he understands that a rodent-damaged Icynene attic in Los Angeles is a different animal than the same job in Phoenix or Sacramento. Our techs see Icynene foam weekly, not once a season. We’re licensed and insured, we send background-checked and uniformed techs to every home, and our 90-Day Done Right Promise means if the exclusion fails or the smell returns, we’re back on your roof without a fight. Most jobs wrap in one visit. And because we also handle blown-in, spray foam, crawl space encapsulation, and air sealing, we can tell you if the rodent problem revealed something bigger that’s costing you money every month.
FAQs
Most Icynene warranties don’t cover rodent damage because it’s an external condition, not a defect in the foam itself. That’s why we document everything with photos before, during, and after our work. If you need to file a claim for a separate material issue later, you’ll have a record. Our 90-Day Done Right Promise covers the work we do, regardless of what the manufacturer’s warranty says.
We repair whenever the surrounding foam is still bonded and dry. Spot removal and patching with compatible open-cell or closed-cell foam is common on Los Angeles homes with isolated rodent damage. Full replacement is only necessary when contamination is widespread or the foam has delaminated over large areas.
In most cases we’re in your attic within 48 hours of your call, and same-week scheduling is usually available across Los Angeles. Rodent damage doesn’t fix itself, and every week of delay means more tunneling and more urine saturation. Call (855) 657-3403 and a live person will put you on the schedule. We answer 24/7, no answering service.
Cleaning and patching is almost always cheaper, usually 40 to 60 percent less than a full re-foam. Re-foaming only makes sense if the contamination is so extensive that you’d be left with patchwork foam that fails as an air barrier. We’ll show you what we found and give you both options with real numbers, so you decide based on the actual condition of your attic, not a sales pitch.
Yes. You can take $50 off any repair over $250, or if you’re a senior or veteran, you get 5 percent off permanently. The offers don’t stack, but you’ll always get the best available one. Ask when you call (855) 657-3403.
Open-cell Icynene holds odors in place because it’s an air barrier, and when your attic hits 120 to 130 degrees in July and August, the heat bakes ammonia from rodent urine right out of the foam and into the air. That’s why sanitizing without removing contaminated foam doesn’t work in Los Angeles, where the heat reactivates the smell for months after the cleaning. The fix is cutting out the saturated section, not just spraying it.
Written by Neil Ashford, Owner, Warmline Insulation Co. at Warmline Insulation Co., serving Los Angeles and nearby areas.