Welcome to Building Technology Systems: Building Technology Systems was established in 1993 to provide temperature controls and mechanical service in the Denver/Front Range area to commercial and industrial clients. We provide solutions for your heating and cooling needs. We service any mechanical heating system, from steam, hydronic, gas-fired, to freon or evaporative cooling equipment. We offer leading industry DCC building control systems from Honeywell and Novar. If you are requiring service, please contact us at: 303-744-2235