I am delighted to have California Radiant (aka Duncan Plumbing) working on my radiant heat system as well as the older style plumbing on my property. They’ve taken the time to sort out some old messes and make everything understandable to me. And I love their annual free inspection to see if anything is needing attention before a problem crops up. They call me to schedule it in the month I’ve requested. Their service has been excellent, way above average, and I would recommend them to anyone!