Networking of building controls, namely, wireless lighting controls, heating and cooling controls, gas and leak detection controls, window covering and door controls, appliance controls, communication system controls, irrigation controls, audio and video system controls, security system and video surveillance system controls; engineering services for the design of home and commercial audio systems, video systems, networked control systems, electronic data systems, lighting systems, telephone and video conferencing systems, heating and cooling systems, gas and leak detection systems, automated window coverings and doors systems, and security systems