The next couple of days (2 & 3 of the first week) seemed to have involved a number of key jobs. A lot has happened behind-the-scenes.
Radiator.
The hot water pipes have been re-positioned, ready to connect to our new radiator. The picture below also shows new cabling in place, ready to power it independently from the hot water system. (We can heat the room & shower if our hot water system fails.)
Shower
The plumbing and power has been re-routed, through the loft, to allow for our planned re-positioning of the shower about the taps in the new bath. I hope they've left enough cable...!
Lights
Our rather old (and rusty!) profile lights have been removed. The holes in the ceiling have been filled with plasterboard. The light switch has been removed, ready for an upgrade. The ceiling has been plastered this morning. The guys finished the work around 1 pm today, to allow the plaster to dry I guess.