Completed project · Westlake Village, CA 91361 · October 2025
One pair of photos tells this Westlake Village job well: a duct passing through the framing with an open gap around it, then the same spot closed with wire mesh and foam. Around it, the old loose-fill came out, the deck was cleaned and sanitized, fixtures were foam-sealed, and new R-38 16in batts went in.

Seeing the same signs in your Westlake Village attic? The inspection is free, and a ballpark quote by phone comes first.
The challenge
Old loose-fill and gaps where ducts pass through
The attic floor carried a layer of old white loose-fill, with pieces of older yellow batts mixed in and ductwork running through it.
Where a duct passed through the framing, the opening around it was left open. Gaps like that are what rodent proofing is for, and they can only be closed properly once the old material is out.



The service
What the crew did, in order
Prep and protection
Floor protection and dust barriers set at the access point before any material was moved, so the rest of the house stayed clean.
Remove the old insulation
The existing insulation taken out with a heavy-duty vacuum, down to a clear, bare surface.
Clean and sanitize
Debris vacuumed from hard surfaces, then OdoBan sanitation applied to neutralize odors and bacteria.
Seal and rodent-proof
Entry points closed with wire mesh, polyurethane foam and cement, with two to four indicator traps left as a check. Gaps around fixtures, piping, wiring and vents air-sealed in the same pass.
New insulation
New R-38 16in Fiberglass Batts installed, on a clean, sealed surface rather than on top of the old layer.
The result
Cleaned, sealed at the framing, and reinsulated
The attic finished with the old insulation removed, the deck cleaned and treated with OdoBan, foam around light fixtures and junction boxes, the duct opening closed with wire mesh and foam, entry points sealed, and new R-38 16in fiberglass batts laid around the ductwork.
More from this job
Photos from the crew





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One of 850+ completed projects across California — see all projects.
Questions homeowners ask
Attic work in Westlake Village, answered
Who does attic rodent proofing and insulation replacement in Westlake Village?
Atticare USA does both in one project, as here: old insulation removed, the attic cleaned and sanitized, entry points sealed with wire mesh, foam and cement, and new R-38 16in batts installed last. Why the order matters.
What does rodent proofing actually include?
Closing every opening a rodent could use. On this job that included the gap around a duct where it passes through the framing, closed with wire mesh and foam, with two to four indicator traps left as a check. Atticare USA’s rodent proofing carries a 1-year warranty. How to compare warranties.
Does Atticare USA offer free attic inspections in Westlake Village?
Yes. Inspections in Westlake Village and across the Los Angeles area are free, and Atticare USA can give a ballpark quote by phone first. Call 1-888-743-7243.
Start the same way this job did.
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