HVAC programs in Illinois that publish a tuition have a median of $14,150 (n=6 of 58 programs across 32 schools). The range is $6,000–$22,800, which is 46.4% above the national directory median of $9,665.
Illinois has 32 HVAC schools and 58 listed programs in this directory. 6 of those programs publish a tuition, which is the only n that enters the dollar figures — the other 52 are counted as schools and programs but not as prices. Among published prices the median is $14,150, the 25th percentile is $7,430, and the 75th percentile is $19,475. That spread is 46.4% above the national median of $9,665 (n=254).
The Illinois mix includes 3 certificates, 2 diplomas, and 1 aas degree. Certificates have a median of $6,640 (range $6,000–$18,500, n=3). Diplomas have a median of $21,300 (range $19,800–$22,800, n=2). Associate degrees have $9,800 (n=1). Listed lengths run 4 months to 2 years, with a median of 1 year (n=58). Illinois does not mandate a statewide HVAC contractor license, though cities and counties may. EPA Section 608 is still required to handle refrigerants.
HVAC technicians in Illinois earn a BLS OEWS median of $55,120 (10th percentile $34,780, 90th $79,640; about 16,280 employed). At that median, the typical published Illinois program costs about 3 months of technician pay — before overtime, NATE premiums, or a jump into commercial work. Nearby directory medians for comparison: Texas $12,705 (n=22); Missouri $12,500 (n=5). The full table, including states below n=5, is the 2026 HVAC Training Cost Index. Every figure on this page is reproducible from that download.
A Illinois quote near $14,150 is typical of this n=6 sample; $6,000 is the low end and $22,800 the high end. 52 listed programs have no published price and do not pull the median down. Cite n=6 next to the Illinois hub and salary page rather than a round number from a blog.
Key Takeaways
HVAC programs in Illinois that publish a tuition have a median of $14,150 (n=6 of 58 programs across 32 schools). The range is $6,000–$22,800, which is 46.4% above the national directory median of $9,665.