The answer to 'cost to install smoke detector' is that the typical cost to have a professional electrician install a new smoke detector in a home ranges from $75 to $200 per detector. The exact price can vary based on factors like the complexity of the installation, whether it's a hardwired or battery-powered detector, and your location.
The cost often includes the price of the smoke detector itself, which can range from $10 to $50 depending on the features and quality. Labor costs for an electrician to properly wire and install the detector are usually $50 to $150 per unit. Additional factors that can affect the total price include the need to run new electrical wiring, the difficulty of accessing the installation location, and any local permitting or inspection requirements.