A J Crews and Co Limited is your electrical testing and installation company in Cardiff, South Glam organ. A. J. Crews & Co has vast experience in Electrical Testing and installation. Amongst our staff we have fully qualified JIB technicians who are trained to test for safety and peace of mind. We are a NIC EIC approved contractor, which covers domestic, commercial and industrial installations and services. The NIC EIC has been asserting the technical competence of its contractors for over 50 years and we have been approved since our company was established. Our generator and maintenance contracts have taught us that the highest level of service requires attention 365 days a year and 24 hours a day. We operate a call out service for our commercial, industrial and local authority customers.