The answer to 'how much to fix emergency HVAC service in my area' is that the cost can vary widely depending on several factors. Emergency HVAC repairs typically range from $150 to $800 or more, with the average cost being around $400. The exact price will depend on your location, the type and severity of the issue, the parts and labor required, and the experience level of the HVAC technician.
Some key factors that influence the cost of emergency HVAC service include the time of day or day of the week (evening/weekend calls are usually higher), the specific problem (e.g. a refrigerant leak vs. a failed compressor), and whether any additional work is needed like ductwork repairs. It's best to get quotes from multiple local HVAC companies to compare prices and services.