Confirm the fixture layout, product choices, plumbing points and trade sequence before demolition and tiling are locked in. Moving a toilet, shower, bath or vanity can change drainage and water-supply work. Review the existing plumbing and agree what is included before the work starts.
Set the fixture layout early
Mark the intended positions of the toilet, shower, bath, vanity and taps. Share the dimensions and product specifications with the plumber and builder before ordering fixtures or closing walls; the selected items need to suit the planned connections and available space.
Coordinate the trade sequence
Plumbing rough-in, waterproofing, tiling and fixture fit-off happen at different stages. Confirm who is coordinating access and timing, what the plumber needs before starting, and which work must be inspected before it is covered.
Agree how changes will be handled
Existing services can differ from plans, especially once a wall or floor is opened. Ask what is included, what is excluded and how a newly found issue will be explained and priced before extra work proceeds.
When should you call a plumber?
- Before finalising a layout that moves plumbing points.
- Before demolition, so existing pipework and access can be discussed.
- Before ordering fixtures with specific connection requirements.
- When adding or relocating a gas appliance or connection.
What affects the cost?
The scope depends on how many fixtures are changing, the selected products, pipe and drain routes, access through walls or floors, and the condition of existing services. Confirm whether fixture supply, demolition, waterproofing, tiling, making good and any variations are included or handled separately.