HIRE THE RESIDENTIAL ELECTRICIAN WITH OVER 40 YEARS OF EXPERIENCE Are you tired of dealing with flickering lights or being ill-prepared in the event of an emergency? Settle your worries with help from a residential electrician. J&J Clap Electrical Contractors offers electrical wiring, landscape lighting and generator installation services for homeowners and business owners in Danbury, CT. We can also perform an electrical panel upgrade if your current system is outdated.