Compare free HVAC quotes for AC replacement, heat pump installation, furnace replacement, and mini-split systems from licensed CA contractors. Get responses within 24 hours.
California has a highly varied — Central Valley summers regularly exceed 105°F, Bay Area stays mild at 65–75°F, SoCal sees warm dry summers of 85–90°F, and coastal areas are cooler year-round. California is aggressively moving away from natural gas — state policy supports electrification, and heat pumps replacing gas furnaces are the primary HVAC growth driver. The average cost of a full HVAC system replacement in California ranges from $5,500–$15,000 depending on system type, home size, and installation complexity.
All HVAC contractors serving California homeowners through The Home Service Guide hold a C-20 HVAC contractor license from the California Contractors State License Board (CSLB). We verify licensing before connecting you with any contractor in our network.
Stacking available incentives can significantly reduce the out-of-pocket cost of a new HVAC system in California. Here are the key programs available to CA homeowners:
Federal tax credit for qualifying heat pump installations through 2032.
CA heat pump rebate program administered through utilities — stacks with federal credit.
Additional rebates from CA utilities for qualifying high-efficiency heat pump and AC systems.
Utility bill credit for eligible CA residential customers that partially offsets electric HVAC operating costs.
If your AC system is 10–15 years old or has required repeated repairs, replacement with a modern high-efficiency unit is typically more cost-effective. Today's systems are significantly more efficient than units installed a decade ago, reducing operating costs by 20–40%.
Heat pumps provide both heating and cooling from a single system and are 2–3x more efficient than electric resistance heating. CA homeowners who switch from oil or gas heating often see dramatic reductions in annual energy costs, especially when stacking available incentives.
High-efficiency gas furnaces (95%+ AFUE) and cold-climate heat pumps are the leading replacement options for aging furnace systems in California. The right choice depends on your current fuel source, home insulation, and access to local incentives.
Mini-split heat pumps require no ductwork and can be installed in virtually any space — ideal for older California homes, room additions, garages, and areas that existing ductwork doesn't reach. Most systems qualify for the same rebates as central heat pumps.