Most people booking a bathroom installation in Caerphilly have never watched one happen from start to finish. That makes it hard to know what is normal, what order things should happen in, and when it is reasonable to ask a question. The room looks worse before it looks better, and that stage can be unsettling if nobody has told you it is coming.
This is a straightforward walkthrough of the stages a full bathroom installation runs through, why each one takes the time it does, and what you can usefully decide or check at each point. Truscon carries out bathroom installation work in Caerphilly, so the sequence below reflects the way a complete room is actually put back together rather than a generic checklist.
Before anything is lifted: survey and decisions
The first visit is about the room as it is, not the room you want yet. The important things are where the soil pipe runs, where the existing hot and cold feeds come in, whether the floor is timber or concrete, and how much of the wall behind the tiles is sound. Those four answers shape what is possible and what would be expensive.
This is also the point to settle the things that are painful to change later. Moving a toilet is a bigger job than moving a basin. Swapping a bath for a walk-in shower changes the waste run and often the floor build-up. Deciding on tiles versus wall panelling changes the preparation work behind them. Getting these fixed early keeps the rest of the job predictable.
- Confirm whether the toilet, bath and basin are staying in the same positions.
- Decide early between tiling and shower wall panelling, because the wall preparation differs.
- Agree who is buying the sanitaryware and when it will be delivered.
- Check that the chosen floor covering suits a room that gets wet daily.
Strip-out and first fix
Strip-out is the loud, dusty day. The old suite comes out, tiles come off, and anything hidden behind them finally becomes visible. It is common for this stage to reveal something nobody could have quoted for, such as a patch of failed plaster or a waste pipe that was never properly supported. A fair installer tells you what has been found and what it changes before carrying on.
First fix follows immediately. This is the pipework and cabling that will disappear behind the finished surfaces: hot and cold feeds moved to their new positions, waste runs set to the right fall, and any wiring for lighting or an extractor put in place. Nothing looks finished at this point, and that is expected. Once the walls are closed up, altering first fix means opening them again.
- Expect the room to be unusable for the whole of this stage.
- Ask to see new pipe runs before they are boarded over.
- Raise any change of mind now rather than after tiling.
Boarding, tanking and tiling
Walls and floors are then made flat, sound and suitable for water. In a shower area this normally means a backing board rather than plasterboard alone, sealed at the joints so water cannot reach the structure behind. This stage is invisible in the finished room, which is exactly why it is worth asking about.
Tiling takes longer than most people expect, because it involves setting out, cutting, fixing, then grouting and sealing on a separate visit once the adhesive has gone off. Large-format tiles need a flatter wall than small ones. Shower wall panelling is quicker and has fewer joints, which is one reason some Caerphilly homeowners choose it for the wet area and tile elsewhere.
- Waterproofing behind the shower matters more than the tile you can see.
- Grouting and sealing usually happen a day after tiling, not the same day.
- Ask where the cuts will fall so awkward slivers do not land in eye-line.
Second fix, testing and handover
Second fix is when the room becomes recognisable. The suite is set, taps and shower valve connected, the extractor wired in, and the flooring laid. Silicone is one of the last things to go on, and it needs time to cure before the shower is used, which is why a bathroom can look complete a day before it should be used.
The handover is worth treating as a real step rather than a formality. Run the shower and the bath together, flush the toilet twice, check the basin drains without gurgling, look under the bath panel for drips, and open and close every door and drawer. Anything you find on the day is far easier to sort while Truscon is still set up on site.
Related pages
Questions customers ask
How long is a bathroom out of use during a full installation?
For a complete strip-out and refit, plan on the room being unusable for most of the job rather than a day or two. The tiling and silicone curing stages both need waiting time built in, so the room can look finished before it is ready to use.
Can I keep the existing layout to save time?
Often yes. Keeping the toilet, bath and basin in their existing positions avoids new waste runs and floor work, which is usually the largest single saving of time in a bathroom installation.
Who supplies the tiles and sanitaryware?
Either arrangement works, but it needs deciding before the start date. If you are supplying items yourself, everything should be on site and checked for damage before strip-out begins, because a missing part stops the whole sequence.
If you are weighing up a bathroom installation in Caerphilly, the most useful thing you can do before contacting anyone is to photograph the room from two corners, measure the floor, and note whether the toilet is against an outside wall. Those three details answer most of the first questions any installer will have.
You can see the range of work on the Truscon bathroom installation page, or send your measurements and photographs through the contact page to start the conversation.



