The answer to 'cost to install smoke detector in Chicago' is that the typical cost to install a smoke detector in a Chicago-area home can range from $100 to $300 per detector. The final cost will depend on factors like the type of smoke detector, whether it's a basic battery-powered model or a more advanced hardwired unit, and the complexity of the installation.
Professional electrical contractors will generally charge higher rates than a handyman or DIY installation, but they can ensure the work is done safely and up to local building codes. The cost may also vary depending on whether you need to run new electrical wiring or if the detector can be connected to an existing circuit.