What HVAC replacement costs in St. Louis
Construction pricing in Missouri runs 6% below the national average, so HVAC replacement here typically lands between $8,930 and $15,510 installed, before rebates.
Figures are modeled from 2026 national baselines adjusted by a Missouri cost factor of 0.94. They are estimates for comparison, not quotes — your property, access and material choices move the real number.
HVAC Contractors serving St. Louis
Ranked by Google review volume. Listings are sourced from public business data; those marked Verified member have claimed and confirmed their listing with us.
- SmartHouse Heating and Cooling
- Seliga Heating and Cooling
- Dole Heating, Air Conditioning & Duct Cleaning
- Fleddermann Heating and Cooling
- Allen Services LLC
- Person Heating & Cooling
- Sewell Heating & Cooling
- Welsch Heating and Cooling
- Lazlos Heating & Cooling
- Arch Air Services
- Averill Heating & Air Conditioning
- Air Pro Heating & Cooling
- F F Heating & Cooling
- Design Aire Heating & Cooling
- Certified Heating & Air Conditioning
- pm solutions llc
- Midwest Repair Service Llc
- HB Mechanical Contractors
- All Climate Services
- countscomfortsystems
We don't rank by who pays us. Always confirm a contractor's license and insurance before hiring.
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