Step 2 · Disconnect the Old Sillcock from Interior Pipe
Go to the interior of your home (basement or crawlspace) and locate the pipe that leads to the outdoor spigot. Since we've assumed a soldered connection, you will need to heat the joint to disconnect it. Place a heat shield behind the pipe to protect the wooden sill plate or joists. Use a propane torch to evenly heat the fitting where the sillcock connects to the copper supply pipe. Do not heat the pipe itself. As the solder melts (it will appear shiny and liquid), use pliers or a gloved hand to gently twist and pull the supply pipe away from the sillcock fitting. Be cautious as the pipe will be extremely hot.