4 SQ EC is recognized as one of top tier residential electrical talents in the San Francisco Bay Area. GREEN/ LEED; Energy Efficient Electrical Firm We are builders and we are electrical craftsman, continuing to provide impeccable service. Electrical Construction & Design Custom Residential Homes Lutron Lighting Control Systems Project Management & Site Mediation Energy Management Solutions Field Operations Consulting Apprenticeship Mentor & Training Since 2004, our owner & CEO has been in the thick of custom residential homes designing and building complex lighting and electrical systems. We entertain all bid invites & service requests