What HVAC replacement costs in Great Falls
Construction pricing in Montana runs 5% below the national average, so HVAC replacement here typically lands between $9,025 and $15,675 installed, before rebates.
Figures are modeled from 2026 national baselines adjusted by a Montana cost factor of 0.95. They are estimates for comparison, not quotes — your property, access and material choices move the real number.
HVAC Contractors serving Great Falls
Ranked by Google review volume. Listings are sourced from public business data; those marked Verified member have claimed and confirmed their listing with us.
- MacDonald Heating & Cooling
- Brennan Heating & Cooling
- Falls Mechanical Services
- B & B Heating & Air Conditioning
- Preferred Heating & Cooling
- Sound-Air
- Hague Quality Water
- Gill's Heating Cooling & Plumbing
- Electric City Plumbing
- Central Plumbing, Heating, Excavation
- Talon Plumbing & Heating Inc.
- Combustion Service Co. Inc.
- Northern Heating
We don't rank by who pays us. Always confirm a contractor's license and insurance before hiring.
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