Some towns allow home owners to do their own electrical work. A neighbor installed a pool around the same time I did. He had a licensed electrician do his. I did my own. His never passed electrical inspection. Mine did
. Many home owners will do better work and take their time, research it, buy better components etc. Technically he needs a permit but on something this minor I wouldn't bother and based on his post he sounds like he knows what he is doing. It's his home, his call. It's a pretty minor change he proposed and is basically what some folks suggest he do.
It's probably more dangerous getting on your roof and cleaning gutters.