The answer to 'humidifier repair cost' is that the cost can vary widely depending on several factors. Typical humidifier repair costs can range from $50 to $300 or more, depending on the type of humidifier, the extent of the repair, and your location.
Some key factors that influence the cost of humidifier repair include the age and model of the unit, the specific problem that needs to be fixed, the accessibility of the humidifier, and the labor rates in your local area. Repairs for whole-home humidifiers tend to be more expensive than portable units. It's best to get quotes from local HVAC professionals to get an accurate estimate for your specific situation.