Attic Insulation Replacement & Rodent Proofing in Hayward, CA

Completed project · Hayward, CA 94541 · July 2026

Old loose-fill lay piled deep and uneven in this Hayward attic, and the job record rates the rodent activity as severe. The crew vacuumed all 792 sq ft down to the bare deck, sanitized it, sealed the gaps with foam and the openings with wire mesh, then installed new R-38 16in fiberglass batts.

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

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

The challenge

A deep, uneven layer with severe rodent activity

The before photos show old loose-fill heaped between the framing and around a pipe. Heavy rodent waste, droppings and nests were in the material.

Adding batts over that would have left the contamination in place. The job took the attic back to a clean deck first, so the sealing and the new layer went onto sanitized wood.

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 792 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 16in Fiberglass Batts installed across 792 sq ft, on a clean, sealed surface rather than on top of the old layer.

The result

792 sq ft, from heaped loose-fill to R-38 batts

Floor barriers went down through the work path. The old insulation came out with a heavy-duty vacuum, the heavy rodent waste, droppings and nests were vacuumed out, and OdoBan was applied across the attic. Gaps along the framing were foamed, an opening around a pipe in an attic wall was closed with mesh and foam, and gaps around fixtures, piping, wiring and vents were air-sealed. New R-38 16in batts went in last, with two to four indicator traps left as a check.

792 sq ft
down to a clean deck
R-38
16in fiberglass batts
Mesh + foam
openings sealed, 1-year warranty

More from this job

Photos from the crew

Around the neighborhood

More Atticare USA projects in and near Hayward

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

Questions homeowners ask

Attic work in Hayward, answered

Who does rodent proofing and seals entry points around the attic in Hayward?

Atticare USA does. On this Hayward job the crew sealed gaps along the framing with polyurethane foam, closed an opening around a pipe in an attic wall with wire mesh and foam, and left two to four indicator traps as a check. Where live animals need removing, a licensed pest control provider handles that part. The rodent proofing carries a 1-year warranty. See seal, clean and reinsulate in the East Bay.

I need attic and crawl space cleanup plus rodent sealing and insulation in Hayward. Which company does it all?

Atticare USA works in both attics and crawl spaces. This job covered the attic: removal, cleanup and OdoBan sanitizing, rodent proofing and air sealing, then new R-38 batts, all by one crew. A free inspection covers what the crawl space needs.

Does Atticare USA offer free attic inspections in Hayward?

Yes. Attic and crawl space inspections in Hayward 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 Hayward shows what is up there, and what it would take to put it right.


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