HVAC System Replacement Cost in California

Full HVAC system replacement in California costs $11,000 to $23,900 in 2026, though city-to-city prices vary quite a bit. Both heating and cooling get heavy use in California: its larger communities average 1,813 heating and 1,197 cooling degree days a year.

HVAC System Replacement Prices in California Cities

City	Estimate	Heating / cooling degree days
Los Angeles	$10,300 to $22,500	1,240 / 795
San Diego	$11,100 to $24,200	1,320 / 1,018
San Jose	$11,200 to $24,300	2,039 / 763
San Francisco	$11,900 to $25,900	3,260 / 29
Fresno	$9,100 to $19,800	2,186 / 2,209
Sacramento	$9,600 to $20,900	2,138 / 1,576
Long Beach	$10,400 to $22,500	1,173 / 1,165
Oakland	$11,300 to $24,500	2,205 / 249
Bakersfield	$9,400 to $20,500	2,153 / 2,219
Anaheim	$11,300 to $24,600	792 / 1,811
Stockton	$9,200 to $20,000	2,048 / 1,650
Riverside	$10,400 to $22,600	1,257 / 1,976
Irvine	$11,400 to $24,900	1,286 / 1,246
Santa Ana	$10,200 to $22,300	926 / 1,334
Chula Vista	$10,200 to $22,100	1,305 / 701

From 2020 through 2025, NOAA recorded 1,485 winter storm and ice events, 1,774 heat events, 39 extreme cold events and 112 hail reports in California. Those are the days when emergency HVAC calls pile up.

When Replacement Makes Sense

Both the heating and cooling equipment are 15 years old or more
Both units keep needing repairs
Some rooms are uncomfortable, and the energy bills are high
An old R-22 AC paired with an aging furnace

What Moves the Price

Furnace plus AC, or heat pump plus air handler
Efficiency ratings: SEER2, AFUE and HSPF2
Equipment sized to the house and climate
Duct repair or replacement
Thermostat and zoning upgrades
Permits and electrical work

Common Questions

How often should an HVAC system be replaced?

Most systems get replaced every 15 to 20 years. AC units and heat pumps usually wear out before gas furnaces do.

Can I replace only the AC and keep my furnace?

Yes, as long as the indoor coil and blower work with the new AC. A mismatched system loses efficiency and can void the warranty.

Other HVAC Prices in California

Get Free HVAC System Replacement Quotes

Tell us where you are and up to three licensed local pros will get in touch. You don't have to hire any of them.