Turn off the water supply to the spigot
Open the spigot to drain any remaining water
Disconnect the supply line or piping inside the wall
Remove the old spigot from the exterior wall
Clean the mounting area and inspect for damage
Apply plumber’s tape or pipe joint compound to the new spigot threads
Insert and secure the new spigot in place
Reconnect the water supply line or piping
Turn the water back on slowly
Check for leaks at all connections
Tighten fittings if needed
Seal around the exterior opening if necessary