New Jobs - New Customers - More Earning Potential! Premier residential plumbing and HVAC service solutions. Powered by ETTEO Technology, Circa's highly experienced team helps you better manage your workload so you can focus on what you do best. By joining the Circa Service team, you gain access to our rapidly growing customer base. Our strategic partnerships and privately sourced jobs give our technicians a steady streamline of workflow without the hassle of sourcing jobs on their own.