Furnace Replacement Cost in California

Furnace replacement in California costs $4,000 to $9,800 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.

Furnace Replacement Prices in California Cities

City	Estimate	Heating / cooling degree days
Los Angeles	$3,800 to $9,300	1,240 / 795
San Diego	$4,000 to $9,800	1,320 / 1,018
San Jose	$4,200 to $10,200	2,039 / 763
San Francisco	$4,500 to $10,900	3,260 / 29
Fresno	$3,100 to $7,500	2,186 / 2,209
Sacramento	$3,400 to $8,400	2,138 / 1,576
Long Beach	$3,700 to $8,900	1,173 / 1,165
Oakland	$4,200 to $10,300	2,205 / 249
Bakersfield	$3,200 to $7,700	2,153 / 2,219
Anaheim	$3,700 to $8,900	792 / 1,811
Stockton	$3,200 to $7,900	2,048 / 1,650
Riverside	$3,400 to $8,300	1,257 / 1,976
Irvine	$4,000 to $9,800	1,286 / 1,246
Santa Ana	$3,500 to $8,600	926 / 1,334
Chula Vista	$3,800 to $9,300	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

The furnace is 15 to 20 years old or more
A repair quote runs past a third of the cost of a new unit
Gas or electric bills keep climbing even though usage hasn't changed
Some rooms stay cold, the burner short-cycles, or the ignitor keeps failing
A tech found a cracked heat exchanger, or the CO detector has gone off

What Moves the Price

AFUE rating: a basic 80% unit vs. a 96% condensing furnace
BTU size, which should come from a Manual J load calculation
Single-stage, two-stage or modulating gas valve
New PVC venting if you move to a condensing model
Permit and inspection fees, which the local building department sets
Condition of the existing ductwork and any changes it needs

Common Questions

How long does a furnace replacement take?

A straight swap is usually done in one day, somewhere between 4 and 10 hours. Moving to a condensing furnace with new PVC venting can add a few more.

Is a high-efficiency furnace worth it?

In cold climates, a 95%+ AFUE furnace usually earns back the price difference in lower gas bills. Where winters are mild, the payback can take a very long time.

Other HVAC Prices in California

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