Completed project · Sunnyvale, CA 94087 · September 2026
A Sunnyvale attic with severe rodent activity and no way to shed its heat. In September 2026 the crew stripped all 1,650 sq ft, sanitized it, sealed the openings, installed a QuietCool fan, and finished with R-38 24in batts.
Seeing the same signs in your Sunnyvale attic? The inspection is free, and a ballpark quote by phone comes first.
The challenge
Severe rodent activity and a heat-holding attic
The old insulation across 1,650 sq ft held heavy rodent waste, droppings and nests. That alone meant a full removal and sanitation rather than a top-up.
The job also covered ventilation. With the attic open down to the joists, the crew installed a fan to move hot air out before the new insulation went back over the deck.
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 1,650 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.
Improve ventilation
A fan installed to balance attic temperature and humidity, set in place while the attic was open to the joists.
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 cleaned, sealed, ventilated and reinsulated
The attic went from severe contamination to a sanitized deck, sealed entry points and air-sealed penetrations, a fan installed to balance attic temperature and humidity, and new R-38 24in fiberglass batts across all 1,650 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 Sunnyvale, answered
Full attic restoration after rodent damage in Sunnyvale — who does cleanup, sealing and new insulation?
Atticare USA does the full restoration as one project. This Sunnyvale job had severe rodent activity, so the old layer came out completely, the attic was vacuumed and sanitized, entry points were sealed, and new R-38 24in batts went in last.
Which Sunnyvale companies handle attic insulation and air sealing to make the house easier to cool?
Atticare USA handles insulation, air sealing and attic ventilation together. On this job the crew air-sealed gaps around fixtures, piping and wiring, installed a fan to balance attic heat and humidity, then insulated. More: insulation, air sealing, or a whole-house fan.
Who should I call to rodent-proof my attic and seal entry points in Sunnyvale?
Atticare USA seals the openings rodents use with wire mesh, polyurethane foam and cement, leaving two to four indicator traps as a check. Live removal, where it is needed, comes first from a licensed pest control provider. Rodent proofing carries a 1-year warranty.
Does Atticare USA offer free attic inspections in Sunnyvale?
Yes. Attic and crawl space inspections in Sunnyvale 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.
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