HVAC Installer Jobs in St. Louis, MO

St. Louis, MO sees steady hiring of HVAC installers driven by new construction activity and an aging residential equipment base due for replacement. HVAC installers handle new system installations — ductwork fabrication, line set routing, equipment placement, and system startup for residential and light commercial projects. Installer positions often require a valid driver's license and the ability to work on equipment in attics, crawl spaces, and rooftops — physical roles with a clear skill progression into service and diagnostics.

HVAC installer positions in St. Louis, MO often come with a defined promotion track — many companies move installers into service roles after 12–24 months once they demonstrate solid ductwork skills and system startup competency. EPA 608 Type II (high-pressure systems) is frequently offered or reimbursed by employers for installers working on split-system equipment, and completing that certification opens the door to service dispatch at higher pay rates.