Oh yes, stuff that involves specialized trades such as plumbing and electric should always be done by a licensed plumber or electrician...if you care about the safety of your family (and house). If you don't, not only can you have a big safety issue, but it will cost you more later to fix it...it does come up on the inspections.
There is always a price/quality decision that we need to make will getting work done John Anello, Stamford Area Electrician .
Only hire trained experience contractors when doing home improvements, your home is your largest investment do it right the first time and stay safe.