Wondering whether to repair or replace your air conditioner? This comprehensive 2026 guide covers everything homeowners need to know about air conditioning replacement, including when AC repair no longer makes financial sense, average replacement costs, SEER2 efficiency standards, and California permit requirements. You'll also learn how qualifying homeowners can take advantage of California HVAC rebates, utility-funded programs, and even free AC replacement through the Energy Savings Assistance (ESA) Program. Whether you're comparing repair costs or planning a new HVAC installation, this guide helps you make an informed, cost-effective decision.