The pattern here is a big house with an en-suite added at some point, then another, then a shower room, all hung off a hot water system that was designed for one bathroom and a bath night. The result is the thing everyone describes the same way: it is fine until someone else turns a tap on. That is not a shower problem, it is a stored hot water and pressure problem, and no amount of brassware fixes it.
So we measure first. Flow rate and pressure at the stopcock, then a look at what is storing the hot water and how much. On a house with three or four bathrooms in genuine simultaneous use that usually points at an unvented cylinder of 250 to 300 litres, fed by a main that can actually fill it. Occasionally the answer is that the incoming supply itself needs upgrading, and it is far better to know that before the tiles are chosen.
Once the supply is right, the fun part is straightforward. Thermostatic mixers behave properly on balanced mains pressure, a decent rain head is worth having rather than a disappointment, and multiple outlets can run without anyone shouting up the stairs.
A small local pleasure: because Trafford water is soft, the glass and the chrome stay clear here without a fight. In a hard water area a large walk-in screen is a commitment to squeegeeing. Here it just stays looking like it did.
