HERS Raters in Napa, CA

Title 24 Compliance in Napa, CA

All new residential and commercial construction in Napa, California must comply with Title 24, the California Building Energy Efficiency Standards. This includes HERS (Home Energy Rating System) verification for new homes and major renovations, ECC (Energy Code Compliance) verification for applicable projects, and acceptance testing for mechanical systems.

Title 24 raters in Napa are certified professionals who perform field inspections to verify that a building's energy systems — including HVAC, insulation, windows, and lighting — meet California's requirements. Without a certified rater's sign-off, a building permit cannot be finalized.

Whether you're a contractor, builder, or homeowner in Napa, finding a qualified local rater early in your project can save time and avoid costly delays. Use our directory to find HERS raters and ECC raters serving Napa and the broader Napa County area.