About
ESI Electrical Contractors brings nearly 60 years of large-scale commercial and industrial electrical construction experience to Dayton, OH and the broader Ohio region — with documented project work including a 2MW generator installation at Wright-Patterson Air Force Base and a University of Cincinnati substation build. Operating from six Ohio locations (Dayton, Cincinnati, Columbus, Solon, and Vandalia), ESI delivers the multi-site capacity that facility managers and general contractors require for complex, phased, or geographically distributed projects. The company's services span electrical construction, a dedicated service department, and a low-voltage division, making them a single-source partner for power distribution, switchgear, panelboards, backup generators, EV charging infrastructure, and structured cabling across commercial, industrial, government, healthcare, and higher education facilities. ESI's Innovation Center in Vandalia sets them apart operationally: as a UL-listed prefabrication facility offering 65 UL-listed prefabricated assemblies — from switch plates to complete electrical rooms — the center reduces field labor hours, compresses schedules, and tightens quality control on mission-critical builds. ESI holds IBEW/NECA affiliation and has achieved OSHA Voluntary Protection Program (VPP) Star status, a rigorous safety designation that reduces liability exposure for owners and facility teams. Their verified project portfolio includes healthcare renovations, R&D facilities, arena and stadium work, biologics manufacturing, and Air Force base infrastructure — demonstrating capability across regulated, high-consequence environments. For property managers and facility directors evaluating electrical contractors in the Dayton metro and across Ohio, ESI offers documented large-project experience, multi-office regional reach, prefabrication efficiency, and a verifiable safety record.
