Electrical Service Group, LLC. is an electrical construction and maintenance firm serving New Haven and the surrounding areas throughout Connecticut. We specialize in Healthcare, Retail and Commercial Facility construction, energy efficient upgrades and on-call maintenance. Our commitment to innovation leads to energy savings and eco-friendly solutions. Since the beginning, we have shown our customers how reducing energy consumption can enrich their bottom line and their work place environment. Electrical Services Group, LLC is concentrated in the supply and installation of energy efficient construction products and methods within the residential, commercial and retail facilities market.