The answer to 'cost to install carbon monoxide detector' is that the typical cost to install a carbon monoxide (CO) detector in a home ranges from $50 to $200 per unit, depending on various factors. The cost can vary based on the type of detector, whether it's a battery-powered or hardwired model, the complexity of the installation, and whether you hire a professional electrician or do it yourself.
For a basic, battery-powered CO detector, the cost is usually on the lower end of the range, around $50 to $100. Hardwired detectors that are integrated into a home's electrical system tend to be more expensive, typically costing $100 to $200 per unit to install. Additionally, if you need to hire an electrician to handle the installation, you'll need to factor in their labor costs, which can add another $50 to $150 or more depending on your location and the complexity of the job.