CertainTeed Attic Cleaning & Rodent Proofing Nationwide

CertainTeed Attic Cleaning & Rodent Proofing in Chicago: What to Know First

We clean and rodent-proof attics in Chicago that hold CertainTeed insulation, and most jobs run $1,200 to $3,800 depending on attic size, contamination level, and how many entry points need sealing. A typical 1,200-square-foot attic with moderate rodent activity takes one full day, sometimes two when old insulation needs full removal. This page is for homeowners who already have CertainTeed products overhead and want to know what happens when rodents move in. Call (218) 261-7714 for a written price before any work starts.

Call (218) 261-7714

If you’re reading this because you heard scratching at 4 a.m. or found droppings in the soffit line, you’re in the right place. We’re an independent CertainTeed service provider in Chicago, which means we work on the product every week but have no manufacturing affiliation.

How CertainTeed Products Fail - and How We Fix Them

• CertainTeed InsulSafe blow-in fiberglass gets matted and compressed under rodent traffic. Rats and squirrels create runways through insulation, and InsulSafe’s fine glass fibers pack down into dense mats that lose R-value fast. We see attics in Jefferson Park where a 12-inch layer measures closer to R-19 than the rated R-38 at the compressed points. The fix: full vacuum-out of the contaminated zones, air sealing beneath, then fresh blown-in insulation installed to the depth we document in the photo record.
• CertainTeed MemBrain (Smart Vapor Retarder) rips when rodents tunnel along the drywall ceiling. MemBrain’s variable-permeance nylon is tough against moisture but not against claws. Once torn, it stops doing its job as a vapor control layer and becomes a highway for conditioned air to escape into the attic. We remove the torn section, clean the area underneath, and install a replacement membrane with seams taped before any insulation goes back.
• CertainTeed DryRight and R-38 fiberglass batts hold urine odor after a rodent colony sets up. Fiberglass batt insulation in general is terrible at shedding moisture, and rodent urine soaks through the facing into the glass fibers. Washing doesn’t work. The smell comes back every summer when attic temperatures climb past 120 degrees. We cut and bag the affected batts, sanitize the framing below with an enzyme treatment rated for porous wood, and re-insulate with clean material.
• CertainTeed TrueComfort and OPTIMA blow-in systems create blind spots. These dense-pack and loose-fill systems settle into corners and around truss webs, which is exactly where mice like to nest. Homeowners can’t see the activity until the colony has been there for months. When we run a camera inspection, we usually find nests where the roofline meets the top plate. If the density is still intact, we spot-clean and decontaminate rather than replacing the whole attic, which keeps the price down.
• CertainTeed CertaSpray open-cell foam gets gnawed into burrows. Open-cell spray foam is soft enough that rats can chew through it in a night. We’ve pulled sections in Logan Square where a rat carved a tunnel eight feet long through the foam, right next to a bathroom vent pipe. The fix is cutting out the damaged foam, sealing the pipe penetration with a metal exclusion barrier, and re-foaming the void.

Our CertainTeed Attic Cleaning & Rodent Proofing Process

1. 1
   Call and describe what you’re hearing or seeing. A live person picks up at (218) 261-7714, 24/7. We ask about the age of the home, when the CertainTeed product went in, and what the activity looks like.
2. 2
   Inspection and diagnostics. One of our technicians walks the attic with a headlamp and camera, maps the contaminated zones, and finds every entry point. We also run a blower-door test, a pressurization reading that shows how much air is leaking from the living space into the attic. This tells us whether the air sealing needs to be redone before insulation goes back.
3. 3
   Written scope and written price before any work starts. You get a flat price with the work described in detail. No work begins until you approve it.
4. 4
   Cleanout and decontamination. We vacuum out contaminated insulation using HEPA-filtered equipment, apply an enzyme-based sanitizer to the framing, and remove every trace of nesting material. For heavy contamination, we fog the attic space to reach surfaces a rag can’t.
5. 5
   Rodent proofing and exclusion. We seal every entry point: ridge vents, soffit gaps, pipe penetrations, chase ways, and any hole larger than a dime. We use metal flashing, hardware cloth, and foam sealant in combination, because rodents will chew through foam alone.
6. 6
   Air sealing and re-insulation. The attic floor gets sealed first (top plates, can lights, wire penetrations), then we re-insulate to the R-value we specify in the scope. We photograph every step and hand you a documented record, plus before-and-after blower-door numbers on every applicable job.

What CertainTeed Attic Cleaning & Rodent Proofing Costs in Chicago

Most jobs in Chicago fall into predictable ranges. A basic cleanout with light contamination on a 1,000-square-foot attic runs $1,200 to $1,800. Moderate contamination requiring partial insulation replacement typically lands between $2,200 and $3,800. A full attic restoration, including complete insulation removal, decontamination, air sealing, rodent exclusion, and new blown-in insulation, runs $4,500 to $8,500 depending on square footage and attic access.

• Inspection and written quote: Free
• Attic cleanout, light (under 500 sq ft, minimal droppings): $1,200-$1,800
• Attic cleanout, moderate (500-1,200 sq ft, active or recent nesting): $2,200-$3,800
• Full restoration with insulation removal and replacement: $4,500-$8,500
• Rodent exclusion, whole-attic: $800-$2,400 depending on entry point count

What moves the price is contamination level, not brand. A CertainTeed attic costs the same to clean as any other fiberglass system. The variable is how much material has to come out and how many holes the rodents found. Call (218) 261-7714 for an exact written quote. Estimates are free, and we will read a competing quote with you if you have one.

Why Chicago Homeowners Call Topside Attic Insulation for CertainTeed Work

We’ve sealed and insulated more than 9,000 homes since 2016, and many of those attics held CertainTeed products when we arrived. We know what the material does after ten Chicago winters, and we know what happens when rodents move through it. Every job we do starts with a written price, and every job closes with a Documented Photo Record so you can see exactly what we did in the spaces you’ll never climb into again.

Our technicians are background-checked and uniformed, and a live person answers the phone 24/7. Behind the scenes, Wes Okafor has been doing building-envelope work in Chicago for over twenty years. He grew up on the Northwest Side, about six blocks from the Portage Park field house, and he learned air movement and thermal performance at Truman College before spending two decades pulling blower-door numbers on Chicago attics. If your CertainTeed insulation is compromised, we’ll tell you what we found, what we did, and what the numbers say. We also service Reflectix products when they show up in the same attics.

Seal the holes first. Then add the R-value. The numbers will tell you whether it worked.

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