Blog
What's changing in SoCal HVAC
Rules, rebates and refrigerants keep moving. These posts track what changed and what it means for your next repair or replacement.
Money & incentives
The Federal HVAC Tax Credit Ended. What SoCal Homeowners Can Still Use in 2026
The 25C Energy Efficient Home Improvement Credit only covers equipment placed in service by December 31, 2025. Here's what that means for a 2026 AC or heat pump replacement in Southern California.
Permits & code
HVAC Permits and HERS Testing in California: What a Legit Replacement Includes
Most California AC and heat pump replacements need a permit and independent HERS testing. What gets tested, the leakage targets, and how to spot a quote that skips it.
Systems
R-454B and R-32: What the New A2L Refrigerants Mean for Your AC Replacement
Since January 1, 2025, most new residential ACs and heat pumps use lower-GWP A2L refrigerants like R-454B and R-32 instead of R-410A. What that means for repair, replacement and safety.
Systems
California's SEER2 and EER2 Minimums, Explained in Plain English
California is in the DOE's Southwest region, so new central ACs must meet both SEER2 and EER2 minimums. The exact numbers, and how to read them on a quote.
Money & incentives
SoCal Heat Pump Rebates in 2026: What's Reserved, Waitlisted and Still Worth Checking
TECH Clean California and HEEHRA single-family heat pump funds are reserved or waitlisted, and the federal 25C credit ended. Where Southern California homeowners can still look in 2026.
SoCal
Climate Zone 7 vs. 10: Why Coastal and Inland San Diego Homes Need Different HVAC
San Diego County spans California building Climate Zones 7 and 10. How coastal and inland homes differ on sizing, efficiency, corrosion and code requirements.
Hiring
How to Check an HVAC Contractor's License in California
Before you hire an HVAC contractor in California, verify the license with the CSLB. What to look for, the $1,000 rule for unlicensed work, and down payment limits.
Repair & maintenance
Repair or Replace Your AC? A Southern California Decision Guide
How to decide between repairing and replacing an AC or heat pump in Southern California: refrigerant type, age, climate zone, permits and the questions that settle it.