Completed project · West Covina, CA 91790 · December 2025
A deep, level blanket of new R-38 blown-in now covers all 1,192 sq ft of this West Covina attic. Getting there meant vacuuming out the old loose-fill, cleaning and sanitizing the bare deck, closing gaps with wire mesh and foam, and air-sealing around fixtures, piping and wiring first.
Seeing the same signs in your West Covina attic? The inspection is free, and a ballpark quote by phone comes first.
The challenge
Heaped, uneven loose-fill
The old loose-fill lay in uneven heaps between the joists, piled up in some bays and thin in others.
Blowing new insulation over it would have kept that unevenness and hidden the gaps underneath. Taking it out to the bare deck let the crew clean, sanitize and seal before the new layer went in.
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 1,192 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 Blown installed across 1,192 sq ft, on a clean, sealed surface rather than on top of the old layer.
The result
1,192 sq ft, from uneven heaps to R-38 blown-in
The attic finished with the old loose-fill removed, the deck cleaned and treated with OdoBan, gaps closed with wire mesh, polyurethane foam and cement, air sealing around fixtures, piping, wiring and vents, and new R-38 blown-in insulation across all 1,192 sq ft.
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 West Covina, answered
Who removes old attic insulation and installs blown-in insulation in West Covina?
Atticare USA does both in one project. On this West Covina job the old loose-fill came out with a heavy-duty vacuum, the deck was cleaned and sanitized, gaps were sealed, and new R-38 blown-in went in last. Why the order matters.
Should old loose-fill be removed before new blown-in insulation goes in?
Often, yes. Here the old layer was heaped and uneven, so it came out first and the gaps under it were sealed. That way the new R-38 blown-in sits even on a clean deck. See what attic insulation replacement costs in Los Angeles.
Which attic companies near West Covina offer a warranty on rodent proofing?
Atticare USA’s rodent proofing carries a 1-year warranty. Entry points are sealed with wire mesh, polyurethane foam and cement, with two to four indicator traps left as a check. Here is how to compare rodent-proofing warranties.
Does Atticare USA offer free attic inspections in West Covina?
Yes. Inspections in West Covina 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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