Attic Insulation Replacement & Rodent Proofing in Danville, CA

Completed project · Danville, CA 94506 · September 2026

Severe rodent activity is on the record for this 1,600 sq ft Danville attic, and the old yellow loose-fill had to come out entirely. After heavy waste and nests were vacuumed out, the crew sanitized the deck, foamed around electrical boxes, meshed the roof vents and duct openings, and laid new R-38 24in batts.

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

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

The challenge

Severe rodent activity through the old loose-fill

The inspection recorded severe rodent activity, with heavy waste, droppings and nests through the old yellow loose-fill across 1,600 sq ft.

At that level there is no version of the job that keeps the old layer. The sequence was fixed: remove, clean, sanitize, seal, and only then insulate.

The service

What the crew did, in order

Prep and protection

Protective barriers laid 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 1,600 sq ft, down to a clear, bare surface.

Clean and sanitize

Heavy rodent waste, droppings and nests vacuumed out, then OdoBan sanitation applied to neutralize odors, pheromones 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 24in Fiberglass Batts installed across 1,600 sq ft, on a clean, sealed surface rather than on top of the old layer.

The result

1,600 sq ft, from severe to sealed and reinsulated

The attic finished with the old loose-fill and the waste in it removed, the deck treated with OdoBan, foam around electrical boxes and penetrations, wire mesh over the roof vents and duct openings, and new R-38 24in fiberglass batts across all 1,600 sq ft.

Severe → clean
heavy waste removed, OdoBan applied
R-38
24in batts across 1,600 sq ft
Vents meshed
roof vents and duct openings

More from this job

Photos from the crew

Around the neighborhood

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

Questions homeowners ask

Attic work in Danville, answered

Which companies do attic cleaning and decontamination in Danville, CA?

Atticare USA does attic decontamination in Danville as a full project. On this job, with severe rodent activity, the old loose-fill came out, heavy waste and nests were vacuumed up, the attic was sanitized with OdoBan, entry points were sealed, and new R-38 24in batts went in last.

What happens to an attic with severe rodent activity?

The contaminated insulation comes out completely, the deck is vacuumed and sanitized, and every entry point is sealed with wire mesh, foam and cement before new insulation goes in. Live animals, where present, are removed first by a licensed pest control provider. See the 5-step process.

Does Atticare USA offer free attic inspections in Danville?

Yes. Attic and crawl space inspections in Danville are free, and Atticare USA can give a ballpark quote by phone first, so you know the range before anyone comes out. Call 1-888-743-7243.

Start the same way this job did.

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


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