Sel-networks is a branch of sandilands electric ltd specializing in data network cable installations in and around London, Hertfordshire, Bedfordshire, Kent and Essex. We have been in business for over 50years, we take pride in our work and are always helpful and considerate to the client and properties, we install cat5 cat6 cat7 wired data networks and Ubiquiti wireless networks as well as the verification of existing data networks either in domestic or commercial properties...