The answer to 'how much to replace smoke detector local' is that the cost to replace a smoke detector can vary significantly depending on several factors. As a general guideline, the typical range for a basic smoke detector replacement by a professional electrician is between $50 to $200 per unit, including labor and materials.
The exact cost will depend on factors like the type of smoke detector (ionization, photoelectric, or dual-sensor), whether it's hardwired or battery-powered, and the complexity of the installation. Additionally, the geographic location, the electrician's hourly rate, and any necessary permits or code compliance requirements can all impact the final price.