It usually costs around $50-$100 to have a gas BBQ installed, depending on the complexity of the installation. Many hardware stores and home improvement stores offer installation services, or you can hire a contractor to do the job.

It depends on what you want. A basic installation with a natural gas line might run you $500-1,000. If you want a propane line, that'll be an extra $100-300. If you need permits or have to hire a contractor, it could cost much more.