Quote - Remove and replace smoke detectors

Can someone clarify this for me? We just had an electrician come out to evaluate two of our outside outlets that need replaced. While here, he said two of our smoke alarms should be replaced. I guess im a little confused as to why this price seems so high. Isn't this something we can do just by purchasing new alarms for waaaay less?

Can someone clarify this for me? We just had an electrician come out to evaluate two of our outside outlets that need replaced. While here, he said two of our smoke alarms should be replaced. I guess im a little confused as to why this price seems so high. Isn't this something we can do just by purchasing new alarms for waaaay less?