HVAC Cost in Arnold, MO in 2026
Most HVAC projects in Arnold, MO cost between $4,900 and $16,000. The typical price is $9,000.
Arnold prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- System size in tons and efficiency rating
- Heat pump versus furnace plus AC
- Ductwork condition and whether it is replaced
- Electrical or gas line changes
Usually included
- Equipment and refrigerant lines
- Installation, startup and commissioning
- New thermostat
- Haul-away of the old unit
Usually extra
- Duct replacement
- Electrical panel upgrades
- Permits and inspections
HVAC contractors in Arnold, MO
Businesses listed on Google near Arnold, MO. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Classic Aire Care
5.0(2,473 reviews)
2104 Tenbrook Rd, Arnold, MO 63010
Academy Air Heating, Cooling, Plumbing and Electric
4.8(1,077 reviews)
924 Jeffco Executive Dr, Imperial, MO 63052
Perfect Air
4.9(812 reviews)
503 Warne St, Festus, MO 63028
Busch Heating & Cooling
4.9(353 reviews)
11 Grandview Park Dr, Arnold, MO 63010
Mechanical Climate Solutions, LLC
5.0(307 reviews)
1021 Fox Chase Industrial Dr, Arnold, MO 63010
Partney Heating and Cooling LLC
4.9(154 reviews)
1359 McNutt St, Herculaneum, MO 63048