Contact Us


GEM Building

Gilleran Energy Management, Inc.
750A Davis Street
Santa Rosa, CA 95401

Phone: (707) 528-7318
Option 3 for New Project



Latest Updates

NEW Energy Code Effective January 01, 2023!

July 14, 2022

The 2022 Energy Code now classifies the following as single-family residential buildings: single-family dwellings, duplexes, townhomes of any size, and accessory dwelling units. Low-rise and high-rise multifamily buildings have also been reorganized into one building type and multifamily building requirements have been moved to their own subchapters.

What’s Changed with the 2022 Energy Code?