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Installation ยท Updated 8 July 2026

How long does a bathroom installation take?

Most full bathroom installations are not a one-day job. Even a small room can involve rip out, plumbing, joinery, tiling, electrics, ventilation, sealing and finishing.

The short answer

A straightforward bathroom refit is often around one to two weeks on site. A more involved bathroom, wet room or layout change can take longer.

The room size matters, but the hidden work matters more. Moving pipework, repairing floors, boarding walls, fitting niches, adding ventilation or using large-format tiles can all add time.

Why bathrooms take longer than people expect

Bathrooms are small spaces with a lot packed into them. Several stages also have to happen in the right order, and some materials need drying or curing time before the next trade can continue.

A tidy job is not just about speed. The important parts are often hidden behind the tiles: pipework, waterproofing, solid walls, level floors and good ventilation.

What can delay the job

Common hold-ups include damaged floors found after rip out, old pipework that needs replacing, late product deliveries, tile shortages, poor access, or decisions being made after work has started.

A clear plan, products on site, and early checks on water, waste, electrics and ventilation help keep the installation moving.

Before work starts

  • Agree the layout and product choices before the first day.
  • Make sure tiles, taps, shower valves and furniture are available in time.
  • Leave access to the stop tap, boiler and consumer unit where possible.
  • Expect some noise, dust and disruption while the old bathroom is removed.
  • Ask how long the toilet, bath or shower may be out of use.