A comprehensive list of in Dover, NH commercial and residential air conditioning companies offering installation, replacement and repair services. Read unbiased customer reviews and recommendations of local contractors. 
It all started in Gonic, New Hampshire. Founder Edward Dupont Senior decided working in the mill was not the way he wanted to make a living. Mr. Dupont was always a car fanatic and decided to pursue his passion by entering the automobile repair business. In the early 1950's, Edward Dupont Sr. had the opportunity to rent a one bay gas and service station located across from the Mill.
Elizabeth Sprague — I've taken my car to DuPont's for my last 2 state inspections. I appreciate their amazing custom service, integrity, and