2025 Energy Code HERS is now ECC — same required tests, new name. We speak both.
HERS ECC Title 24 Group
HERS ECC Title 24 Group

Alameda County

ECC (HERS) testing across Alameda County — Oakland to Livermore. Alameda County has been core territory since our team’s Bay Area roots: Oakland, Berkeley, Fremont, Hayward, San Leandro, Pleasanton, Dublin, Livermore, Alameda, Albany, Emeryville, Newark, Piedmont, Union City, and the unincorporated communities of Castro Valley, San Lorenzo, Ashland, Cherryland, Fairview, and Sunol.

For homeowners

Independent verification, filed in CHEERS, before your city finals the permit — with your consumer documents in writing on every job. Schedule your test →

For contractors

We work daily with building departments across the county’s fourteen cities and its unincorporated areas — the paperwork differs more than people expect between, say, Berkeley and unincorporated Castro Valley, and knowing those differences is half the job. Send addresses →

Pre-war flats in the north county, post-war ranches mid-county, and newer tract construction in the Tri-Valley each fail differently — old ducts leak at boots and plenums; new tracts live or die on QII and ventilation.

City pages: Oakland · More: all 28 counties