The answer to 'how much to replace maintenance in Chicago' is that the cost to replace HVAC maintenance can vary significantly depending on several factors. Generally, you can expect to pay anywhere from a few hundred dollars up to $1,000 or more to have your HVAC system serviced and maintained by a professional technician in the Chicago area.
The exact cost will depend on the size and type of your HVAC system, the age and condition of the equipment, the specific maintenance tasks required, and the hourly rates and service fees charged by the HVAC contractor. Additional factors that can influence the cost include the accessibility of the equipment, the need for any repairs or replacements, and the time of year (maintenance is often more expensive during peak seasons).