The answer to 'how much does air duct cost in Illinois' is that the cost of air duct cleaning can vary significantly depending on several factors. In general, the typical range for air duct cleaning in Illinois is between $300 to $800, but the actual cost will depend on the size of your home, the number of vents and ducts, the level of contamination, and the location of your home.
The cost can be influenced by factors such as the accessibility of the ductwork, the need for any repairs or replacements, and the experience and expertise of the cleaning company. It's essential to get local quotes from reputable air duct cleaning companies to get an accurate estimate for your specific situation.