Elderly parents may need to abandon the stairs. We have a good sized
downstairs utility and boiler room so removing some storage and
installing a sink and shower shouldn't be too hard. I am wary of getting
specialists in who will mark everything up x2 at least and thinking of
specifying the requirements and hardware (enclosure, taps etc) and
supervising trades myself.

Where would i look to see what is available for any kind of special
sanitary equipment for the elderly, and where I could get it at a decent
trade price?

TW