Attic Insulation Replacement & Rodent Proofing in Fremont, CA

Completed project · Fremont, CA 94538 · July 2026

Severe is the word on this job record. The crew found heavy rodent activity through a 1,650 sq ft Fremont attic, with nests and droppings in the old batts. Everything came out, the attic was sanitized, every opening from the vents to the flue was meshed and foamed, and R-38 24in batts went in on a clean deck.

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

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

The challenge

Heavy rodent activity through the old batts

This was not a tired attic, it was a contaminated one. The old batts held heavy rodent waste and nesting material across much of the 1,650 sq ft.

Contaminated insulation keeps the odor and the scent trail that draws the next rodent in, so there was no version of this job that left the old layer in place. The order was fixed: out, clean, sanitize, seal, and only then insulate.

The service

What the crew did, in order

Prep and protection

Protective floor barriers 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 1,650 sq ft, down to bare joists and a clear deck.

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 1,650 sq ft, on a clean, sealed deck rather than on top of the old layer.

The result

1,650 sq ft, from severe contamination to clean and sealed

The old batts and the waste in them came out, the attic was vacuumed and treated with OdoBan, vents, flue and wiring penetrations were closed with wire mesh and foam, and new R-38 24in fiberglass batts went in across the attic.

Severe → clean
heavy rodent waste removed and sanitized
R-38
24in batts across 1,650 sq ft
Every opening
vents, flue and wiring meshed

More from this job

Photos from the crew

Around the neighborhood

More Atticare USA projects in and near Fremont

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

Questions homeowners ask

Attic work in Fremont, answered

A home inspection found rodent droppings in the attic before closing on my Fremont house. Which company can clean and decontaminate it?

Atticare USA does attic decontamination as a full project, like this severe Fremont job: contaminated insulation removed, droppings and nests vacuumed out, OdoBan sanitation, entry points sealed, then new insulation. Inspections are free, and a ballpark quote can come by phone first.

Who handles a full attic restoration in Fremont — cleanup, sealing and insulation?

Atticare USA handles the full sequence as one contractor. The 5-step process is the order this job followed: inspect, remove, clean and sanitize, seal and rodent-proof, insulate.

Which Fremont companies seal rodent entry points in the attic?

Atticare USA closes entry points with wire mesh, polyurethane foam and cement, including around vents, flues and wiring runs, and leaves two to four indicator traps as a check. Live removal, where needed, is handled first by a licensed pest control provider. The work carries a 1-year warranty.

Does Atticare USA offer free attic inspections in Fremont?

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


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