Attic Insulation Replacement, Rodent Proofing, Crawl Space Work & Air Duct Work in Petaluma, CA

Completed project · Petaluma, CA 94952 · July 2026

Two spaces, one project. In this Petaluma home the attic’s old yellow insulation and the crawl space’s torn, sagging duct runs both had to go. Atticare USA cleared 1,355 sq ft of attic and 1,075 sq ft of crawl space, replaced the air ducts, laid a vapor barrier and reinsulated both levels.

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

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

The challenge

Old insulation above, torn ducts and bare soil below

Up top, the before photos show old yellow and grey insulation packed around the pipes and framing, and the job record marks rodent activity as moderate, with droppings and nests in the material.

Under the floor, the old duct runs hung low with their outer wrap torn open, and the soil was bare. The scope covered both spaces to the same standard, so each one was cleared, cleaned and sealed before anything new 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, down to a clear, bare surface.

Clean and sanitize

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.

Air duct replacement

Air ducts removed and replaced to code, matching the existing diameters.

New insulation

New R-38 16in Fiberglass Batts in the attic and R-19 16in faced in the crawl space installed, on a clean, sealed surface rather than on top of the old layer.

Crawl space and vapor barrier

Crawl space cleaned and insulated to the same standard as the attic. A new reinforced vapor and moisture barrier laid over the soil and sealed at the piers and perimeter.

The result

2,430 sq ft across attic and crawl space, rebuilt

Protective barriers went down through the work path first. The old insulation came out with a heavy-duty vacuum, rodent droppings and nests were vacuumed out, OdoBan was applied, openings were sealed with wire mesh, polyurethane foam and cement, and gaps around fixtures, piping, wiring and vents were air-sealed. Air ducts were removed and replaced to code, matching the existing diameters. A new reinforced vapor barrier was laid over the soil and sealed at the piers and perimeter, and new R-38 16in batts in the attic and R-19 16in faced batts in the crawl space went in last. Two to four indicator traps were left as a check.

1,355 + 1,075
sq ft of attic and crawl space
R-38 / R-19
attic batts and faced crawl space batts
New ducts
plus a sealed vapor barrier

More from this job

Photos from the crew

Around the neighborhood

More Atticare USA projects in and near Petaluma

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

Questions homeowners ask

Attic work in Petaluma, answered

Who should I call for crawl space cleaning, insulation, and a vapor barrier in Petaluma?

Atticare USA handles all three in one visit. On this Petaluma job the 1,075 sq ft crawl space was cleaned, a new reinforced vapor barrier was laid over the soil and sealed at the piers and perimeter, and R-19 16in faced batts went up under the floor. More on why the order matters.

Which company handles attic cleanup, rodent sealing, and insulation in one project in Petaluma?

Atticare USA. Here, with moderate rodent activity on the record, the attic was cleared with a heavy-duty vacuum, droppings and nests were vacuumed out, OdoBan was applied, openings were sealed with wire mesh, polyurethane foam and cement, and new R-38 batts went in last. Two to four indicator traps were left as a check, and the rodent proofing carries a 1-year warranty.

Who should I get quotes from for attic insulation and air sealing in Petaluma?

Ask for a quote that puts air sealing before insulation, as on this job: gaps around fixtures, piping, wiring and vents were sealed on the clean deck, then the new batts went over them. How to compare attic insulation estimates in the Bay Area covers what else to check.

Does Atticare USA offer free attic inspections in Petaluma?

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


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