The answer to 'how much to fix garbage disposal in Illinois' is that the cost to repair or replace a garbage disposal can vary significantly depending on several factors. Generally, minor repairs like unclogging or replacing the disposal switch can range from $75 to $200, while a full replacement of the disposal unit can cost between $150 to $500 or more.
The exact cost will depend on the specific issue, the type and brand of disposal, labor rates in your local area, and whether any additional plumbing work is required. It's best to get quotes from 2-3 licensed plumbers in your Illinois community to get an accurate estimate for your particular situation.