Process and cost factors
The order bathroom trades actually run in
A bathroom is a sequence, not a set of jobs happening at once. Getting the order wrong is the single biggest cause of rework, because later trades depend on earlier ones being finished and dry.
How it works in practice
Strip-out and any structural or floor repairs come first, followed by first-fix plumbing and electrics before any boarding goes up.
Waterproofing and tanking happen after boarding but before a single tile is laid, skipping ahead to tiling before this cures properly is how leaks start.
Tiling follows, then flooring, then second-fix plumbing and electrics, and finally decorating and sealant as the very last stage.
Trades often need to return to the same room twice, which is normal, a plumber fitting first-fix pipework and then returning for taps and the WC pan is standard practice.
Frequently asked
Can tiling and flooring happen at the same time?
Not usually in the same room, floor tiling generally follows wall tiling so that cuts and skirting details line up correctly.
Why does the electrician come back twice?
First fix runs cables and boxes before the walls are boarded; second fix connects fittings once decoration is complete, to avoid damage to finished switches and lights.
Want the awkward part looked at first?
Access, existing pipework and floor build-up are the things that change a plan. Those get checked before anything is promised.