HVAC System Replacement Cost in Louisiana

Across Louisiana, homeowners pay $8,800 to $19,200 for full HVAC system replacement. Climate, labor rates and housing age all move the price. In Louisiana's cities, the median home dates to about 1976.

HVAC System Replacement Prices in Louisiana Cities

City	Estimate	Heating / cooling degree days
New Orleans	$9,300 to $20,300	1,134 / 3,291
Baton Rouge	$8,300 to $18,000	1,693 / 2,571
Shreveport	$8,100 to $17,600	2,067 / 2,676
Metairie	$9,900 to $21,600	1,176 / 3,205
Lafayette	$8,900 to $19,300	1,574 / 2,715

From 2020 through 2025, NOAA recorded 178 winter storm and ice events, 1,899 heat events, 92 extreme cold events and 719 hail reports in Louisiana. 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 Louisiana

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