Hello,
I found out last night that a small leak is occurring on the baseboard heating I have. The leak is a slow drip and is coming from the "control box". The "control box" is what I believe to be where the thermostat controls the amount of heat.
I don't have any knowledge when it comes to baseboard heating. But would like to know if this is something minor and if I could fix myself or do I need to call in a tech?

Thanks.

Tough call, could just be a simple fix, tighten the locking ring collar, or partially draining and purging the system because the part needed replaced. That being the case you might have wished you paid a pro before it was all done.