It varies, but usually it's around $75-100.

It varies depending on the type of garbage disposal, but it typically starts at around $79. Home Depot offers professional installation services for a wide variety of home improvement projects, including the installation of a garbage disposal. Their services are backed by a satisfaction guarantee, so you can be sure that you're getting a quality installation. If you're looking to install a garbage disposal yourself, Home Depot also offers free in-store workshops where you can learn how to install them yourself.