Bathrooms in Corby are among the more straightforward we fit, and the reason is that the plumbing was designed rather than improvised.
Post-war housing was built with internal soil stacks in sensible positions and services planned as part of the design, rather than added to a Victorian house decades after it was built. That means moving a bathroom, or adding an en suite, is usually a practical proposition rather than an exercise in finding somewhere the waste can physically go.
The constraint here is more often space than plumbing. Bathrooms on this stock were sized to the standards of the day and they are not generous, so getting a walk in shower and a decent basin into a room designed for a bath and a pedestal takes careful setting out. Frequently the better answer is to borrow a little space from a landing or an airing cupboard rather than to squeeze everything into the existing footprint.
Floors bring the usual considerations. Joists were sized for a bedroom, not for a filled bath on a tiled floor, and where a waste run means notching or drilling them there are permitted zones we work to.
Ventilation and tanking are not optional. An extractor discharging into a roof void puts the moisture straight back into the building, and tiles and grout are not a waterproof layer. Our bathroom installations page sets out what a full refit involves.