Air Duct Cleaning Cost in California

Most California homes pay between $69 and $299 for a standard whole-house air duct cleaning. The exact number depends on home size, number of vents, system age, and where you are in the state. Use the calculator below for your personalized estimate.

What Drives Air Duct Cleaning Costs in California

The short answer is: home size, number of vents, system condition, and where you are in the state. A 1,200 square foot condo in San Francisco is a different job than a 3,500 square foot home in the Inland Empire with 30 vents and an attic-mounted system.

Home Size and Number of Vents

The two biggest pricing factors are your home’s square footage and how many supply and return vents you have. More vents means more individual access points to clean, more duct runs to reach, and more time on the job. A 10-vent home takes 2-3 hours. A 30-vent home takes 4-5 hours. The equipment is the same – the time is what changes.

Regional Pricing Across California

Labor rates vary significantly across California. Los Angeles, the Bay Area, and San Diego tend to run 5-15% above the state average due to higher operating costs. Sacramento and the Central Valley are close to baseline. The Inland Empire and smaller cities tend to run slightly lower. The calculator above adjusts for your specific ZIP code.

System Age and Condition

Older HVAC systems with 15+ years of accumulated dust and debris take longer to clean. Deteriorating duct connections, sagging flexible duct, and corroded fittings add complexity. If the technician discovers issues during the camera inspection, they will explain options before starting any additional work.

How Long Since the Last Cleaning

A home that was cleaned 2-3 years ago has moderate buildup that clears quickly. A home that has never been cleaned in 10+ years may have dense, compacted debris that requires extra passes. The difference in time and effort directly affects cost.

Sanitizing, Deodorizing, and Add-Ons

Standard cleaning removes dust, debris, and allergens. Adding antimicrobial sanitizing or deodorizing treatment costs more but addresses odor and biological contamination that cleaning alone does not eliminate. This is particularly relevant for California homes that have been exposed to wildfire smoke or have mold concerns.

Mold Treatment

If mold is present inside the ductwork, remediation is a separate service that involves containment, HEPA vacuuming, antimicrobial treatment, and potentially replacing affected insulation. This costs significantly more than standard cleaning. A camera inspection determines whether mold treatment is actually needed before any work begins.

About Inspections in California

Most specialists in our California network offer complimentary duct inspections. They assess your system’s condition, show you camera footage of what is inside, and provide a written estimate before any work begins. The inspection itself is typically free whether or not you proceed with cleaning. Call to confirm availability in your area.

California-Specific Cost Factors

Wildfire Smoke Residue

California fire seasons push microscopic ash into homes. That residue settles inside ductwork and bonds with existing dust. Cleaning ducts with wildfire residue can take longer because the material is denser and more compacted than standard household dust. If your home was near any smoke event in the last few years, mention it when you call.

Year-Round HVAC Use

California homeowners run their HVAC systems 12 months a year. Cooling from April through October, heating from November through March. That continuous use means your ducts accumulate contaminants faster than homes in regions with seasonal HVAC breaks.

Coastal Humidity and Mold Conditions

Coastal California from San Diego to San Francisco faces marine humidity that enters duct systems and creates conditions for mold growth. If you live within 20 miles of the coast and notice a musty smell when your system runs, mold inside the ductwork is a real possibility. A camera inspection tells you definitively.

Air Duct Cleaning Cost FAQs for California