Completed project · Berkeley, CA 94705 · December 2025
Before anything moved in this Berkeley attic, the crew laid protective floor barriers and dust-barrier tunnels through the work path. Then the old loose-fill came out across 1,225 sq ft, the deck was sanitized, gaps along the framing and around fixtures were sealed, and new R-38 24in batts went in.
Seeing the same signs in your Berkeley attic? The inspection is free, and a ballpark quote by phone comes first.
The challenge
Old loose-fill over the whole attic floor
The attic was covered in old loose-fill, piled around the ducts and spread between the framing. To see and seal the gaps underneath, it all had to come out.
Removal on that scale means material moving through the home, which is why the dust-barrier tunnels went in first.
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 1,225 sq ft, 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 24in Fiberglass Batts installed across 1,225 sq ft, on a clean, sealed surface rather than on top of the old layer.
The result
1,225 sq ft, from loose-fill to R-38 batts
The old insulation came out with a heavy-duty vacuum, the attic was sanitized with OdoBan, openings were closed with wire mesh, polyurethane foam and cement, gaps along the framing and around fixture housings were sealed, two to four indicator traps were left as a check, and new R-38 24in batts went in across the attic.
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 Berkeley, answered
I want to stop mice from getting back into my attic in Berkeley. Which companies do rodent exclusion?
Atticare USA does. On this Berkeley job the crew closed openings with wire mesh, polyurethane foam and cement, sealed gaps along the framing, and left two to four indicator traps as a check. The rodent proofing carries a 1-year warranty. See how Atticare USA seals, cleans and reinsulates in the East Bay.
Who does attic decontamination and reinsulation after a rat problem in Berkeley?
Atticare USA handles it as one project: remove the old insulation, clean, sanitize with OdoBan, seal and rodent-proof, then reinsulate. This job followed that order, finishing with new R-38 24in batts on a clean, sealed deck.
A home inspection found rodent droppings in my Berkeley attic before closing. Who can clean and decontaminate it?
Atticare USA does attic cleanup and decontamination, and inspections are free, with a ballpark quote by phone first. Where live animals are still present, a licensed pest control provider handles removal before the cleanup.
Does Atticare USA offer free attic inspections in Berkeley?
Yes. Attic and crawl space inspections in Berkeley 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.
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