Air Duct Cleaning Cost in San Francisco, California
Our 2026 estimate for air duct cleaning in San Francisco, CA is $480 to $1,100 (whole house). That puts San Francisco 38% above the national average, mainly because of higher incomes and home values, which push labor rates up.
Compare Free Quotes in San Francisco
San Francisco Weather and HVAC Load
In a normal year, San Francisco racks up 3,260 heating and 29 cooling degree days (NOAA 1991-2020 normals). Heating is the bigger job here, and furnaces and heat pumps in San Francisco put in far more hours than the air conditioner. Temperatures stay mild year-round: freezing nights and 90°F days are both rare.
| Heating degree days / year | 3,260 |
|---|---|
| Cooling degree days / year | 29 |
| Nights at or below 32°F | 1 |
| Days above 90°F | 1 |
| Average low / high | 50.6°F / 61.7°F |
San Francisco Housing Stock
Census figures put the median build year in San Francisco at 1945, so a typical house here has about 81 years on it. Houses that old often still have duct runs sized for an old coal or oil furnace and 60- or 100-amp electrical panels. Both can add cost when new equipment goes in. About 140,000 households here own their home, 38.5% of the occupied total. Homes here have a median value of $1,380,500 and households a median income of $141,446. Those two numbers drive the labor adjustment in our estimate.
San Francisco County had 3 hail days and 4 days with damaging thunderstorm winds from 2020 through 2025, according to NOAA storm records. Storms here are more likely to cause power surges than coil damage, so a surge protector on the outdoor unit is worth the small cost.
When to Book It
- You moved into a house with no maintenance records
- Signs of mice or insects in the ducts
- You just finished a remodel
- A musty smell after a leak or flood
What Moves the Price
- How many supply and return vents the house has
- House size and duct layout
- Sanitizing or mold treatment
- Adding a dryer vent cleaning
- How hard it is to reach ducts in the attic or crawlspace
We raised the national figures about 38% for San Francisco using local income, home values and the equipment size this climate needs. Real bids can still come in outside the range, so collect three written quotes.
What the Quote Should Cover
- Before-and-after photos
- Cleaning the blower compartment
- Cleaning the registers and grilles
- Inspecting the supply and return ducts
- Cleaning under negative pressure with a truck or portable vacuum
California Permits, Efficiency Rules and Rebates
California is in the DOE's Southwest region, where new split central air conditioners need at least 14.3 SEER2 (13.8 SEER2 for systems of 45,000 BTU/h and up). The Southwest also sets a minimum EER2, which measures efficiency at peak heat.
Before You Hire
- Put in a new filter as soon as the cleaning is done.
- Watch out for $99 whole-house deals. They tend to turn into upsells once the crew is inside.
- Ask whether the company follows NADCA standards.
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Air Duct Cleaning Questions from San Francisco Homeowners
How much is air duct cleaning in San Francisco?
Plan on $480 to $1,100, with most jobs near $820. Equipment efficiency, house size and the condition of the ducts and wiring decide where your quote falls.
When is the best time to schedule air duct cleaning in San Francisco?
Between late spring and early fall. San Francisco averages 1 freezing nights a year, and heating calls spike from November through February.
How often should ducts be cleaned?
There's no set schedule. The EPA recommends cleaning when there's visible mold, pests or a lot of debris, not on a routine basis.
Does duct cleaning lower energy bills?
Not by much. Sealing leaky ducts makes a much bigger difference to efficiency and comfort.
Air Duct Cleaning Near San Francisco
- San Jose $480 to $1,100
- Fresno $350 to $800
- San Diego $480 to $1,100
- Sacramento $390 to $900
- Los Angeles $460 to $1,050
- Long Beach $440 to $1,010
- Oakland $480 to $1,100
- Bakersfield $360 to $830
Sources: U.S. Census Bureau ACS 5-year estimates 2019-2023 and 2024 population estimates; NOAA NCEI U.S. Climate Normals 1991-2020, station San Francisco Oceanside; NOAA Storm Events Database 2020-2025, San Francisco County. Prices are our estimates, not contractor quotes. Updated 2026.