Environmental Systems Co. - A Fidelity Company

Environmental Systems Co. operated as ESC, functions as a building technology contractor based in West Hartford, Connecticut, and maintains state contractor licenses E1-0104162 and S1-0394512. The company has operated continuously since 1972 and currently holds a 4.8-star rating derived from six customer reviews. ESC serves commercial building owners and facility managers throughout the Hartford metro area, including West Hartford, Hartford, and surrounding towns, delivering integrated solutions for building automation, security, life safety, and energy optimization.

What distinguishes ESC from conventional HVAC contractors is their position as a single-source provider for multiple building technology systems rather than a single trade specialist. Their Energy Solutions division focuses specifically on efficiency upgrades and optimization, a niche that earned explicit praise from reviewers for fast response times and specialized expertise. The company operates under Fidelity Building Services Group, providing backing and resources while maintaining local project execution with an emphasis on intelligent integration across comfort, security, and audio-visual systems.

Two customer reviews specifically named technicians who handled distinct challenging situations. One reviewer described Kyle, Kal, and JD performing heating and air conditioning work at a nursing home, noting Kal removed floor units with care for surroundings while JD rewired old electrical systems described as a birds nest into controlled functionality. The reviewer, holding an electrical engineering degree, stated that JD possessed superior knowledge of electricity. A second reviewer praised ESC's energy efficiency team for rapid response and specialized expertise.