Founded in 2002, Environmental Construction Group is one of the leading Hazardous Materials Abatement and Demolition contract ... ors in Southern California. We are fully licensed, insured and bonded to perform Abatement and Demolition services throughout ALL of California. ECG is a Small Business Enterprise (SBE) certified by the State of California and several Federal, State and Local agencies. We actively hold A, B, C21, ASB and HAZ License, as well as maintain our DOSH certificate with the state of California. read more