Emergency HVAC repair is 24/7 service to restore heating or cooling when a sudden failure threatens safety, property, or equipment. It’s most often needed when the system can’t run at all or shows warning signs that continued use could cause damage. When a safety device trips, avoid power-cycling; it’s the system telling you to stop and get it checked. We provide round-the-clock response for homeowners in Wentzville and surrounding areas, and the emergency diagnostic fee is $199 plus repairs; maintenance plan members receive a reduced emergency rate plus discounts on repairs.
Call for emergency service right away if you notice any of the following:
- No heat during freezing weather or no cooling during extreme heat
- Electrical burning smell or visible smoke from the unit or vents
- Water leaking at the air handler or heavy ice on the coil
- Carbon monoxide alarm sounding or a furnace flame that burns yellow
If you smell gas, leave the home and call your utility before any HVAC work.
Updated: 2026-02-13
Need help in Wentzville, MO? Call 3148148455 or book online. "Air comfort responded right away when we had no heat." — Shirley F.