Attic Insulation Replacement, Rodent Proofing & Whole House Fan in San Jose, CA

Completed project · San Jose, CA 95128 · June 2026

Insulation, rodent cleanup and ventilation, all in one San Jose attic. The record rates the rodent activity as severe; across 1,400 sq ft the old kraft-faced batts and the waste came out, the deck was sanitized, openings were meshed and foamed, a fan went in at the gable vent, and new R-38 16in batts finished the job.

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

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

The challenge

Severe rodent activity and an attic that needed air moving

The job record lists severe rodent activity, with heavy waste, droppings and nests to remove along with the old kraft-faced batts. Before anything moved, the crew laid floor barriers and dust-barrier tunnels through the work path.

The scope also called for better attic ventilation. With the attic stripped to the deck, the crew sealed the openings, added a fan to balance attic temperature and humidity, and then insulated over a clean, sealed floor.

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 1,400 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.

Improve ventilation

A fan installed to balance attic temperature and humidity.

New insulation

New R-38 16in Fiberglass Batts installed across 1,400 sq ft, on a clean, sealed surface rather than on top of the old layer.

The result

1,400 sq ft rebuilt, with a fan to move the air

The attic finished with the old batts and rodent waste removed, the deck sanitized with OdoBan, vent openings screened and pipe penetrations closed with wire mesh and foam, gaps around fixtures and wiring air-sealed, a fan installed at the gable vent, and new R-38 16in fiberglass batts across 1,400 sq ft.

1,400 sq ft
R-38 16in fiberglass batts
Fan installed
at the gable vent
Severe → sealed
waste out, openings meshed

More from this job

Photos from the crew

Around the neighborhood

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Questions homeowners ask

Attic work in San Jose, answered

I need attic insulation, air sealing, and attic ventilation done together in San Jose. Which company handles all of it?

Atticare USA handled all three on this San Jose job: gaps around fixtures, piping and wiring air-sealed, a fan installed to balance attic temperature and humidity, and new R-38 16in batts, in one project. More on choosing between the options: insulation, air sealing, or a whole-house fan.

Best company for attic cleanup and insulation replacement after rodents in San Jose?

Look for one that removes the contaminated material instead of covering it, sanitizes, and seals entry points before insulating. This job had severe rodent activity, so the old batts, waste, droppings and nests all came out, OdoBan went down, openings were meshed and foamed, and the new insulation went in last. The 5-step process lays out the order.

Which San Jose companies should I get quotes from for attic insulation and air sealing?

Atticare USA quotes both together, because air sealing belongs on the clean deck before insulation goes over it, as on this 1,400 sq ft job. A ballpark quote by phone comes first, and the inspection is free.

Does Atticare USA offer free attic inspections in San Jose?

Yes. Attic and crawl space inspections in San Jose 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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