What HVAC replacement costs in Ontario
Construction pricing in California runs 28% above the national average, so HVAC replacement here typically lands between $12,160 and $21,120 installed, before rebates.
Figures are modeled from 2026 national baselines adjusted by a California cost factor of 1.28. They are estimates for comparison, not quotes — your property, access and material choices move the real number.
HVAC Contractors serving Ontario
Ranked by Google review volume. Listings are sourced from public business data; those marked Verified member have claimed and confirmed their listing with us.
- Magnison and Moen, Inc.
- Sears Appliance Repair
- Air Control Systems
- Air Control Specialties
- NexGen HVAC & Plumbing
- Diamond Air Services
- Amcot Cooling Tower Co.
- Attic Control
- Ontario Refrigeration Services
- Macawsome Heating & Cooling
- Fenco Heating and Cooling
- Macawesome
- My Air System Heating & Air Conditioning
- A-1 Radiator and Air Conditioning
We don't rank by who pays us. Always confirm a contractor's license and insurance before hiring.
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