You have to be at least 18 to start most registered HVAC apprenticeships. A few programs let you apply at 17 as long as you turn 18 before training starts. Oregon's state apprenticeship system runs exactly that way. On the other end, there is no age cap at all. Federal equal opportunity rules bar registered sponsors from rejecting applicants over 40 because of age, and in practice programs take career switchers in their 20s, 30s and beyond every intake cycle.
Age is the easy box. The rest of the checklist at most registered programs: a high school diploma or GED, a valid driver's license, a drug test, and often an aptitude test covering algebra, arithmetic and reading. Union programs layer on their own steps. Pipefitters Local 537 in Dorchester, MA asks for all of the above plus a doctor's letter confirming you can physically do the work, and it only accepts applications in January. Miss the window, wait a year. So the intake calendar matters as much as the age line. The full rundown of what sponsors and employers screen for is in our guide to getting an HVAC apprenticeship with no experience.
Plenty of first-year apprentices are nowhere near 18. Sponsors tend to like older applicants, because a decade of showing up to any job is proof you will show up to this one. The pay math holds too. Most first-year apprentices earn between $17 and $24 an hour, and the national median for all HVAC techs was $62,940 as of May 2025 BLS data. Start at 30 and you can be at full scale by 34 or 35 with zero training debt.
Under 18? Use the wait. Finish your diploma or GED, get your driver's license, and take whatever shop, electrical or algebra classes your school offers. Some high schools now run HVAC pathways that get students EPA 608 certified before graduation.
Ready to apply, at whatever age you are? Browse open HVAC apprentice jobs, or start with how HVAC apprenticeships actually work.
