The answer to 'how much to replace switch in Illinois' is that the cost to replace a light switch can vary widely, typically ranging from $50 to $200 or more depending on several factors. The main influences on the cost include the type of switch, the difficulty of the installation, and whether any additional electrical work is required.
For a basic single-pole light switch replacement in an accessible location, you can expect to pay on the lower end of that range, around $50-$100. However, if the switch is in a harder to reach area, requires rewiring, or is part of a more complex electrical setup, the cost can be higher, up to $200 or more. It's best to get quotes from local licensed electricians to get an accurate estimate for your specific situation.