The answer to 'how much to fix preventive maintenance in Illinois' is that the cost can vary widely depending on several factors. Preventive HVAC maintenance typically ranges from $100 to $300 per visit, but the exact price will depend on the size of your home, the complexity of your system, and the specific services required.
Factors that influence the cost of HVAC preventive maintenance in Illinois include the age and condition of your equipment, the accessibility of your system, the geographic location within the state, and the reputation and expertise of the HVAC contractor. It's essential to get multiple local quotes to ensure you're getting a fair price for the work needed.