HVAC Jobs in Chicago, IL

Chicago is one of the largest commercial HVAC markets in the Midwest, driven by a dense stock of high-rise office buildings, industrial facilities, and institutional properties. The climate is genuinely extreme — hot, humid summers with extended 90°F stretches and cold winters that regularly drop below zero — which means both the cooling and heating seasons generate steady service and replacement work. Union membership is more common in Chicago commercial HVAC than in most southern markets, and many commercial contractors operate under SMART Local 265 or related agreements.

Illinois HVAC contractors are licensed at the municipal and county level in addition to any state requirements. Chicago's Department of Buildings enforces specific licensing for mechanical work within city limits. EPA 608 is required federally. The presence of large commercial accounts — hospitals, universities, high-rise residential towers — means familiarity with chilled-water systems, cooling towers, and building automation is a significant career differentiator in this market.