We Specialize in Panel Upgrades. At J. Dupont Electrical Contractor, we take great pride in the experience, expertise, quality and customer service that we provide to meet the consumer?s needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless the size of the job.