Do you need an electrician in Sheffield or the surrounding areas? John Carr Electrical, established in 1955, are a team of certified electricians with decades of experience in the industrial, commercial and domestic electrical service sectors. Our fully qualified electricians offer a variety of commercial and domestic electrical services from general electrical repairs to PAT testing, and our credentials are well documented - we are an Approved Electrical Contractor with ELECSA. Our ELECSA accreditation reflects our emphasis on safety as well as the continued training of our employees.