HVAC Costs in St. Louis, MO
Verified cost ranges for hvac in St. Louis
HVAC Costs in St. Louis
Cost ranges verified from official sources
Furnace Installation
St. Louis, MO
Low
$1,576
Average
$1,576
High
$1,839
Updated May 2026
Heat Pump Installation
St. Louis, MO
Low
$4,267
Average
$4,267
High
$4,979
Updated May 2026
Ductwork Installation
St. Louis, MO
Low
$66
Average
$120
High
$414
Updated May 2026
Furnace Repair
St. Louis, MO
Low
$63
Average
$982
High
$2,542
Updated May 2026
Thermostat Installation
St. Louis, MO
Low
$83
Average
$224
High
$414
Updated May 2026
Duct Cleaning
St. Louis, MO
Low
$48
Average
$1,751
High
$4,755
Updated May 2026
Boiler Installation
St. Louis, MO
Low
$3,483
Average
$3,483
High
$4,064
Updated May 2026
Boiler Repair
St. Louis, MO
Low
$71
Average
$2,125
High
$5,800
Updated May 2026
Attic Insulation Installation
St. Louis, MO
Low
$285
Average
$5,329
High
$14,739
Updated May 2026
Radiant Floor Heat Installation
St. Louis, MO
Low
$419
Average
$419
High
$551
Updated May 2026
Understanding HVAC Costs in St. Louis
Furnace installation costs in St. Louis vary significantly based on system complexity, home size, and existing infrastructure. The wide range reflects differences in furnace type (basic to high-efficiency models), ductwork modifications needed, and local market conditions. Factors like regional labor availability, climate demands, and local building codes all influence where quotes fall within the typical range for the area.
How St. Louis Compares
*Based on aggregated cost data from multiple sources