The answer to 'humidifier installation cost' is that the cost can vary significantly depending on several factors. In general, a professional humidifier installation can range from a few hundred to a few thousand dollars, depending on the type of humidifier, the complexity of the installation, and the location of your home.
Some key factors that influence the cost include the size and type of humidifier (whole-house vs. portable), the accessibility of the installation site, any necessary modifications to your HVAC system, and the labor rates in your local area. Professional installation is typically recommended to ensure proper integration with your home's heating and cooling system and to avoid potential water damage.