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Air duct replacement in San Jose.

Torn, crushed or chewed ducts out, new flexible ducts with insulation built into the jacket in, run and supported to fit your attic or crawl space.

New silver flexible insulated ducts run across an attic
New ducts across the attic · real AttiCali job

When San Jose homes need new ducts

Ducts sit in the attic or under the floor, where rodents can damage them. Common reasons to replace them:

  • The outer jacket is torn or missing and the insulation shows.
  • The duct is crushed, kinked or sagging.
  • A duct has come loose and blows air into the attic or crawl space.
  • Rodents chewed holes in it, or left droppings on or inside it.
  • The attic or crawl space is being cleaned and the old ducts are damaged.

New ducts often go in alongside other work, because the space is already open. See attic insulation in San Jose and crawl space cleaning in San Jose.

New silver flexible insulated ducts run across an attic
New ducts across the attic · from our job photos

What we install

We replace whole duct systems, not single runs, with new flexible ducts that have insulation built into the jacket. The old, damaged ducts are removed and leave with us. The new ones are run and supported to fit the height and layout of your attic or crawl space.

New ducts can be done together with new insulation, or after attic or crawl space cleaning, in the same visit and on the same written quote. It is a one-day job.

New silver flexible insulated duct run over fresh insulation in an attic
New duct over fresh insulation · from our job photos

San Jose is Climate Zone 4: what that means for ducts

California’s energy code groups the state into 16 climate zones, and it uses San Jose as the standard weather city for Zone 4 (see Table 2-1). Some duct rules in California’s energy code depend on the climate zone. Zone lines can cut through a ZIP code, so check your own address with the California Energy Commission climate zone tool.

A recent job nearby

Ducts are often replaced as part of a bigger job. In Fremont, one of our finished jobs combined rodent proofing, attic and crawl space cleaning, new batts and new ducts. See the Fremont project.

Job day

Please be home, and clear the path to the work areas of breakable items. The crew covers the path from your front door to the work areas with drop cloths or plastic sheeting, and our crew sends you before and after photos.

Finished jobs near San Jose.

The city and the work done. No names, no addresses.

A finished Fremont job

Rodent proofing with the outside openings sealed, the attic and crawl space cleaned, old insulation out, new batts in, and new ducts.

A finished Cupertino job

Rodent proofing with the roof and outside openings sealed, traps set, the crawl space and garage sanitized, and a vapor barrier laid over the soil under the house.

San Jose questions.

Do you take the old ducts away?

Yes. The old, damaged ducts are removed and taken away with us.

How do you decide how the ducts are run?

They are run and supported to fit the height and layout of your attic or crawl space. We look at the space at the free inspection.

Can you replace ducts and insulation in the same visit?

Yes. New ducts can be done together with new insulation or crawl space cleaning. Two or more services get 10% off (one discount per job).

Is San Jose in California Climate Zone 4?

The state energy code uses San Jose as the standard weather city for Climate Zone 4. Zone lines can cut through a ZIP code, so check your own address with the California Energy Commission climate zone tool.

Free inspection in San Jose.

We check the attic, crawl space, garage and the openings outside. You get a written quote usually within 30–60 minutes of the inspection, the same day at the latest. Monday to Friday, 8 AM to 5 PM.

$300 off any job over $2,000, or 10% off for seniors, expecting moms, veterans or multiple services. One discount per job.

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