Approximately how much would it cost to install an outside water faucet on the side of my house

Need more info. Are you replacing existing hose bibb? Or installing a new one. Is there an easily accesable water line near the new hose bibb location. Impossible to give an estimate without knowing exactly what we are dealing with. What type of water lines do you have. Are you looking to do it yourself, or hire it done? I would guess between 20 and 200 dollars, all depends.

Approximately how much would it cost to install an outside water faucet on the side of my house

Answer MGD's question. Is this a new insrtall or simply a replacement? Do you live in a area where you would need a frost free hose bib? Let us know, tom