Adding a single outlet can feel like a tiny upgrade, but the moment you touch that receptacle, a major breaker panel rule can ...
You probably CAN do it yourself, but if you're not familiar with the codes, I wouldn't. There are special codes that apply to bathroom outlets (need GFI, as you said), so either study up and do it ...
Learn how to add an outlet or receptacle to finished drywall walls using three methods: 00:00 Method 1: Behind Baseboard ...