The answer to 'how much to replace surge protector in Chicago' is that the cost to replace a surge protector can vary quite a bit depending on several factors. In general, you can expect to pay anywhere from $50 to $300 or more to have a surge protector professionally installed in your home in the Chicago area.
The final cost will depend on the type of surge protector, the complexity of the installation, whether any electrical work is required, and the rates charged by the local electrician or home services provider. Larger, more sophisticated whole-home surge protectors at the main electrical panel tend to be on the higher end of that range, while basic plug-in surge protectors are on the lower end.