If this is something that requires soldering or could end up damaging the pipe requiring its replacement, then the answer is yes. If it’s just a matter of unscrewing something and screwing on a replacement, then I can tackle it myself.
I have a leak from the shutoff valve for the hot water supply to the lav in our main bathroom. The supply lines are all galvanized, The leak doesn’t seem to be from the connection of the flexible supply line to the valve, nor the connection of the valve to the pipe that sticks out from the wall — it seems to be coming from the valve stem. It’s not dripping a whole lot, but it’s enough that I ican’t store toilet paper under the sink any more. 🙁
What are the names for the different parts here, anyway?