I recently bought a partially completed house and employed a builder to complete all works. I had specified that I wanted 4 zone heating with water boost. The electrician has put in four seperate on off switches with one manual time clock. I am not happy with this and expected a programmable time clock to enable seperate control of each zone.The builder tells me his setup would be the norm and that to get it changed I need to buy the clock & pay for it to be fitted. I wonder if anyone might advise whether this would seem reasonable?