Attic Insulation Replacement & Rodent Proofing in Los Angeles, CA

Completed project · Los Angeles, CA 91423 · December 2025

Completed on New Year’s Eve 2025 in Sherman Oaks. The old pink insulation had been torn up and contaminated, with dark patches where rodents had nested. By the end, 1,300 sq ft had been cleared and sanitized, the gable vents were meshed and foamed shut to rodents, and new R-38 16in batts lay across the attic.

Los Angeles attic after the job, new insulation installed
After: the new insulation in place.

Seeing the same signs in your Los Angeles attic? The inspection is free, and a ballpark quote by phone comes first.

The challenge

Torn, contaminated insulation under a busy duct run

The old layer was pulled apart and matted, with darkened, contaminated sections where rodents had been living in it. Ducts running across the attic made the mess harder to reach and harder to clean around.

In a hot San Fernando Valley attic that insulation was doing little for the house. The only fix that holds is the full sequence: remove, clean and sanitize, seal, then insulate.

The service

What the crew did, in order

Prep and protection

Protective floor barriers and dust-barrier tunnels set through the work path 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 across 1,300 sq ft, down to bare joists and a clear deck.

Clean and sanitize

Droppings, nests and debris vacuumed out, 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 across 1,300 sq ft, on a clean, sealed deck rather than on top of the old layer.

The result

1,300 sq ft cleared, sealed and reinsulated

The attic went from torn, contaminated insulation to a clean deck, foam-sealed fixtures and penetrations, gable vents screened with wire mesh and foam, and new R-38 16in fiberglass batts across all 1,300 sq ft.

R-38
16in batts across 1,300 sq ft
Gable vents
screened with mesh and foam
Warranty
1-year on the rodent proofing

More from this job

Photos from the crew

Around the neighborhood

More Atticare USA projects in and near Los Angeles

One of 850+ completed projects across California — see all projects.

Questions homeowners ask

Attic work in Los Angeles, answered

I had rodents in my attic and need the insulation removed, the space cleaned and new insulation put in. Who does that in Los Angeles?

Atticare USA does all of it as one project, as on this Sherman Oaks job: contaminated insulation removed, the attic cleaned and sanitized with OdoBan, entry points sealed, and new R-38 16in batts installed last.

Which attic cleanup companies in Los Angeles provide warranties on rodent exclusion work?

Atticare USA’s rodent proofing carries a 1-year warranty, a one-time fix rather than a service contract. Here’s how to compare rodent-proofing warranties across companies.

Rats keep getting back into my attic in Los Angeles. Which companies seal up the entry points?

Atticare USA seals entry points with wire mesh, polyurethane foam and cement. On this job that included screening the gable vents. Live removal, where it is needed, comes first from a licensed pest control provider.

Does Atticare USA offer free attic inspections in Los Angeles?

Yes. Inspections in Los Angeles 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.

A free attic inspection in Los Angeles shows what is up there, and what it would take to put it right.


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