Icynene Attic Cleaning & Rodent Proofing Nationwide | Walt’s Insulation

Icynene Attic Cleaning & Rodent Proofing in Mission Viejo: What to Know First

Icynene attic cleaning and rodent proofing in Mission Viejo typically runs $1,200 to $3,800 depending on attic size, contamination level, and how much exclusion work is needed. Most jobs take one to two days, and we’re usually on-site within 48 hours of your call. If you’ve got rodents in your Icynene-insulated attic, call (949) 528-8707 for a straight answer and a free estimate.

Call (949) 528-8707

This page is for Mission Viejo homeowners who had Icynene spray foam installed and are now dealing with rodent activity, droppings, odor, or just years of accumulated dust and debris in the foam. Spray foam changes the cleaning and exclusion equation compared to fiberglass or cellulose, and most attic crews don’t know the difference. We do.

How Icynene Products Fail - and How We Fix Them

Icynene is a solid product line, but it has specific weak points when rodents move in. Here’s what we see in Mission Viejo attics and what we do about it:

• Rodent tunneling in open-cell Classic and Classic Max foam. Rats and mice burrow straight through open-cell foam. It’s soft, easy to chew, and holds nesting warmth. We regularly find tunnel networks six to eight feet long inside Icynene Classic attics near Lake Mission Viejo. The fix is removing the damaged foam sections, sanitizing, and installing exclusion before any re-foam happens.
• Urine-soaked foam that can’t be spot-cleaned. Unlike fiberglass batts you can pull and toss, open-cell Icynene absorbs liquid. Rodent urine saturates into the foam and the smell does not air out. The only real fix is cutting out the contaminated foam, treating the decking beneath, and re-foaming. We do this without disturbing unaffected sections.
• Icynene ProSeal and ProSeal LE closed-cell rodent resistance - but not immunity. Closed-cell foam is harder for rodents to penetrate, but they’ll still gnaw the surface, especially along edges and seams. The damage is usually shallow but unsightly and can compromise the air seal. We repair those surface areas with compatible closed-cell product, not whatever foam is on the truck.
• Foam coverage gaps along eaves and soffit transitions. Mission Viejo homes with Icynene often have thin or missed spots where the roof deck meets the eaves. Rodents find those gaps. During any attic cleaning, we inspect the entire foam envelope and flag under-sprayed areas the original installer missed. If you don’t fix the gap, you’ll be cleaning the attic again next year.
• Wiring chewed inside or behind foam. Rodents in foam-insulated attics tend to chew wiring that runs through or alongside the foam. We’ve seen this in homes across Mission Viejo, from houses near the 5 freeway to the hills above Oso Creek. During cleanup, we photograph any damaged wiring and recommend a licensed electrician before we re-foam over it. Foam hides electrical problems; the last thing you want is a fire hazard sealed inside your insulation.

Our Icynene Attic Cleaning & Rodent Proofing Process

Every Icynene job follows the same sequence. No shortcuts, no surprises:

1. 1
   Attic inspection and foam assessment. We map the foam type (open-cell vs closed-cell), locate contamination, identify entry points, and check for moisture or wiring issues. You get photos and a written scope before any work starts.
2. 2
   Contaminated foam removal. We cut out urine-soaked, tunneled, or damaged Icynene foam in clean sections. We don’t tear out good foam to pad the bill, something Walt Brenner has been adamant about since we started in 2000.
3. 3
   Sanitizing and decontamination. After foam removal, we treat the decking and remaining structure with an antimicrobial cleaner that neutralizes odor and bacteria. This step is skipped by most handymen, and it’s why their “clean” attics still smell in August.
4. 4
   Rodent exclusion and proofing. Every entry point gets sealed with materials rodents can’t chew through: galvanized steel mesh, metal flashing, and closed-cell foam backing where appropriate. We inspect the full perimeter, including plumbing stacks, HVAC penetrations, and gable vents.
5. 5
   Foam repair or replacement. We re-foam the removed sections with product matched to your existing Icynene line. If the damaged area is small, we patch. If it’s extensive, we quote a full re-foam and show you why before you spend a dime.
6. 6
   Final walkthrough and Done Right Promise. We walk the attic with you on a video call or in person from the access point. If anything isn’t right, we fix it. That’s the lifetime workmanship guarantee we’ve stood behind for over 25 years.

What Icynene Attic Cleaning & Rodent Proofing Costs in Mission Viejo

Here are real numbers based on jobs we’ve done in Mission Viejo:

What moves the price: attic square footage, how much foam is contaminated, how many entry points need sealing, and whether you have open-cell or closed-cell Icynene. Open-cell removal is faster and cheaper; closed-cell repairs cost more because the material is denser and harder to remove cleanly. Call (949) 528-8707 and we’ll give you an exact number before any work begins. Seniors and veterans always get 10% off, and there’s no trip charge anywhere in our service county.

Why Mission Viejo Homeowners Call Walt’s Insulation for Icynene Work

We’re not a franchise and we’re not a call center. We’re the one down the road, locally owned and owner-operated since 2000, with a published address and license number you can actually verify. Every technician who walks into your Mission Viejo home is background-checked and in uniform, so there’s no mystery about who’s in your attic.

We service Icynene attics because we understand how foam fails, not because the manufacturer sent us a manual. And if your attic has a different setup, like a Reflectix radiant barrier alongside foam, we handle that too. The Done Right Promise covers every job for life: if it’s not done right, we make it right. No runaround, no fine print. We answer the phone live. Always have.

FAQs