Mon–Fri 7:30AM – 5:30PM

Duct Sealing & Indoor Air Quality Services | Marin & Sonoma

Duct sealing, filtration, airflow, and indoor air quality service for Marin and Sonoma homes with leaky, stale, smoky, or poorly balanced air.

Licensed & InsuredProfessionals
Quality WorkGuaranteed
Local ExpertsSince 1986
Fast & ReliableService

This is the broader duct and indoor-air-quality hub. If the main problem is debris inside the duct runs, start with our air duct cleaning services. If the problem is leaky ductwork, weak airflow, smoke intrusion, stale rooms, or filtration that cannot keep up, John Owens Services can inspect the whole system and recommend the right fix.

Why Homeowners Choose John Owens

  • We diagnose airflow, duct condition, filtration, return-air paths, and equipment condition before recommending work.
  • Aeroseal duct sealing is available when leakage is the real problem, especially in hard-to-reach older duct runs.
  • We match filtration and IAQ upgrades to the HVAC system so the fix does not create new airflow problems.
  • One local HVAC team handles ductwork, filtration, and the equipment behind it.
  • We keep recommendations tied to the house and the measurements, not a generic air-quality package.

Signs Your Ductwork Or Indoor Air Quality Needs Attention

  • Leaky attic or crawlspace ducts waste heated and cooled air before it reaches the room.
  • Rooms stay stuffy, stale, too hot, or too cold even when the equipment is running.
  • Wildfire smoke, oak pollen, pet dander, or fine dust keeps circulating through the house.
  • Old returns, weak filter cabinets, or gaps pull air from places they should not.
  • Older flex duct or sheet-metal systems need sealing, balancing, repair, or filtration upgrades.

Frequently Asked Questions

What is the difference between duct cleaning and duct sealing?

Duct cleaning removes debris from inside the runs. Duct sealing closes leaks that waste conditioned air and pull dirty attic or crawlspace air into the system.

Do you service older Eichler and ranch-style homes?

Yes. Those homes are common in our service area and often need careful duct inspection, return-air correction, sealing, or filtration work.

Can duct and air-quality work help during wildfire season?

It can. We focus on practical improvements: sealed ductwork, better filtration, cleaner returns, and airflow that does not drag smoke residue or attic dust through the house.

Proudly Serving Marin & Sonoma

From the Marin coast to Sonoma wine country, we bring honest plumbing, heating & cooling to homeowners across both counties — based locally since 1986.

Ready to Get Started?

Schedule service with our trusted local team today.

Serving Marin & Sonoma Counties

Good plumbing, heating, and air conditioning systems are vital in every North California home. John Owens Services, Inc. is proud to be the expert plumbing company you can count on