Apologies if this has been covered before. Have I made extra work for the plumbers by fitting the first floor ufh (Ambiente ambiplate) before the first fix? The joist depth is 200mm, I've insulated under the plates with 75mm rockwool. The builder also layed the floor and fitted the stud walls between the bathroom and ensuite. After one of the plumbers drilled through the ufh pipe, the boss has blamed it on the ufh being hidden by the insulation and asked me to remove it so they don't, 'catch anymore pipes'. Not a big deal but surely they could just move it around. Is this order of works unusual? They're saying they normally first fix on joists before the floor goes down but didn't say anything at the earlier on site meetings. I've already had to compromise and have it all in speedfit instead of copper.