As far as my learning goes (not very far), vibrating pipes are normally a sign of a valve issue. If the house is unoccupied often, do they shut the water off every time they leave? Is there a half closed valve somewhere that needs to be fully open?
Thanks, I'll check. Not sure they know tbh. I did turn off the hot water boost while I was round and we had no noise yesterday or last night. Could be he was being overly careful with using the taps though!
As far as my learning goes (not very far), vibrating pipes are normally a sign of a valve issue. If the house is unoccupied often, do they shut the water off every time they leave? Is there a half closed valve somewhere that needs to be fully open?