Repairing something around the home can be a pretty tricky situation, especially if it involves electricity in any way. That is why for most cases, residential electrical repairs should be done by a professional. Hiring a professional is pretty easy as long as the person knows where to look.
Some people are going to ask for recommendations from their friends and family if they are just getting started. Others will simply do an online search to see which options are best in the area.
Once they arrive, make sure to explain the entire situation and ask if they need you to do anything in particular. In most cases, all the electricity is going to have to be shut off in order for everything to be done properly. This is just standard procedure, and it helps to protect the person who is doing all of the work.