The list spans January through October, with events spread across San Diego, Los Angeles, and the Central Valley. It includes niche gatherings alongside broader industry crossovers. The Women in ASHRAE Leadership Symposium in Los Angeles this April sits alongside technical events like IAQVEC, which runs five days in May and draws researchers and practitioners focused on indoor air quality. If the ASHRAE winter conference 2026 is already on your radar, these California events fill out the rest of the year with regional access to similar audiences. For contractors, facility managers, and mechanical trades professionals operating in the state, several of these are close enough to drive to, which keeps the cost of attendance low and the networking practical.
At a glance
- Total HVAC conferences: 10
- Largest city by count: San Diego (3)
- Tier mix: 1 Tier A / 1 Tier B / 5 Tier C / 3 Tier D
- Price mix: 4 $ / 1 $$ / 1 $$$
- Date range: Jan 31, 2026 to Nov 17, 2026
Breakdowns
A closer look at how the set distributes across sub-scopes.
Cities in California by HVAC conference count
| City | Conferences |
|---|
| San Diego | 3 |
| Los Angeles | 2 |
| Pasadena | 2 |
| Del Mar | 1 |
| Anaheim | 1 |
| Coronado | 1 |
HVAC conferences in California by month
| Month | Conferences |
|---|
| January | 1 |
| April | 2 |
| May | 1 |
| June | 3 |
| October | 1 |
| November | 2 |
Takeaways
Among the 10 HVAC conferences in California, 1 sit at Tier A.
San Diego hosts the most events in this cut, with 3 on the calendar.
June is the busiest month, with 3 conferences scheduled.
Ticket pricing splits 4 at the $ tier and 1 at the $$$ tier, so entry costs vary widely across the set.
AIA Conference on Architecture & Design tops the Tier-ranked list, held in San Diego.
The most common stated purpose is Training / Certification, covering 5 of the 10 events in this cut.
Event length averages 2.4 days across the set, with the longest running 5 days.
