St. Louis, Missouri · HVAC Technician Salary
Median annual salary for HVAC mechanics and installers in St. Louis, Missouri, estimated from BLS OEWS 2024 metro-area data (SOC 49-9021). Salaries range from $40,863 at the 25th percentile to $73,443 at the 75th.
25th Percentile
$40,863
Median
$55,220
75th Percentile
$73,443
vs. State Median
+10%
| Level | Est. Annual |
|---|---|
Apprentice / Helper 0–2 yrs | $38,654 |
Junior Tech 2–5 yrs | $48,594 |
Journeymanmedian 5–10 yrs | $55,220 |
Senior Tech 10–15 yrs | $63,503 |
Lead / Supervisor 15+ yrs | $70,682 |
Estimates apply BLS-observed seniority wage progression ratios to the St. Louis median. Actual pay depends on employer, company size, and specialization.
Required for any refrigerant work; universal vs. type-specific adds ~$1K
With cert: ~$58,720/yr
Fewer than 10% of techs hold NATE — scarcity drives the premium
With cert: ~$63,720/yr
Required in ~30 states; often the ceiling without it
With cert: ~$59,420/yr
Opens commercial and government service contracts
With cert: ~$57,220/yr
Premiums are additive and reflect national averages adjusted to the St. Louis wage level. Source: ACCA salary survey 2024.
| Specialization | Est. Median |
|---|---|
Residential Service Baseline — most common role in the area | $55,220 |
Commercial HVAC RTUs, chillers, AHUs — more system complexity | $62,951 |
Refrigeration Supermarket and cold-chain specialists command a consistent premium | $65,160 |
Controls / BMS Building automation is the highest-paying specialty by a wide margin | $72,890 |
New Construction Install Steady work but lower wages than service-call roles | $51,907 |
vs. Missouri Median
State median: $50,200/yr
vs. National Median
National: $54,228/yr
Est. median: $54,216/yr
Est. median: $47,690/yr
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Data source: BLS OEWS 2024, SOC 49-9021 · Metro-area adjustment applied · Last updated 2026