Quick answer
Moving a toilet typically adds around £500–£1,500 or more to a bathroom project in Plymouth, on top of the rest of the work. The cost is driven by the soil pipe, not the toilet — waste has to fall away under gravity, so re-routing it usually means lifting floors. Moving a basin or bath is far cheaper.
Why moving a toilet costs more than you’d think
It’s one of the most common things we get asked in Plymouth: can we just shift the toilet over to the other wall? The honest answer is usually yes — but it’s rarely as simple, or as cheap, as people expect. The toilet itself is the easy part. What makes a relocation pricey is everything hidden under the floor: the soil pipe that carries the waste away.
Unlike water, which is pushed through pipes under pressure, foul waste relies on gravity. The soil pipe needs a steady downward fall — a gradient of roughly 1 in 40 for a 100mm pipe — so everything drains cleanly to the stack. Move the toilet and you have to move that pipe with it, keeping the fall right the whole way. That often means lifting floorboards or chasing into a screed, re-routing the run, and making good afterwards. That’s the work you’re paying for, and it’s why a relocation typically adds £500–£1,500 or more to the job.
What drives the cost up or down
No two relocations are the same, so here’s the honest breakdown of what we look at when we price one. It’s nearly always a combination of distance, access and what’s under your floor.
Distance from the stack
A short shuffle of half a metre to clear a new layout is a world away from running waste across the room. The further the toilet moves from the existing soil stack, the more pipe, fall and floor work is involved — and the more it costs.
Floor type & access
A suspended timber floor we can lift and board back is straightforward. A solid concrete floor that needs chasing or boxing is harder, slower and dearer. Easy access under the floor is the single biggest cost-saver.
Gravity vs a pump
If a proper gravity fall can be kept, that’s the cleanest and most reliable option. Where it can’t — too far, or no fall available — a macerator pump comes into play, which changes the job and the price.
Because of all this, moving a toilet is almost never done on its own. It nearly always sits inside a wider full bathroom installation or renovation, where the floor is already up and the room is already being reworked — which is by far the most cost-effective time to do it.
Short moves versus long moves
The distance the toilet travels matters more than almost anything else. A short move — sliding the pan a few hundred millimetres to make a layout work — can often be done by adapting the existing waste run with offset connectors and a modest re-route. That’s at the kinder end of the range.
A long move is a different beast. Sending waste right across the room, or to a wall with no nearby stack, means a long new pipe run with the fall carefully maintained over the whole distance. More pipe, more floor up, more making good — and a price nearer the top of the bracket, or beyond it. This is the part we’ll always be straight with you about during the first-fix planning:
- We check where the existing soil stack sits before promising any new position
- We confirm a true gravity fall can be held the whole way
- We tell you honestly if a position pushes the job into pump territory
- We price the floor make-good in, never as a nasty surprise later
If you’re still weighing up the layout, our guide on why bathroom quotes vary so much is worth a read.
The expensive work happens at first fix, under the floor — re-routing the soil pipe with the right fall before anything else goes back.
When a macerator or pump is the answer
Sometimes gravity simply won’t reach. A toilet in a converted loft, a cloakroom under the stairs, or a basement below the drain level may be too far from the stack for a gravity run to work. That’s where a macerator — a pumped waste unit such as a Saniflo — earns its place. It sits behind or beside the toilet, breaks the waste down and pumps it through a small-bore pipe to the main drain, opening up positions you couldn’t otherwise use.
The trade-offs to weigh up
A macerator is a genuinely useful bit of kit, but it’s a mechanical solution, and it pays to go in with your eyes open. It needs an electrical supply, so an electrician’s involvement adds a little to the job. It has a motor that can be heard when it runs, it’s fussier about what goes down it than a standard toilet, and being mechanical it can need servicing or replacing down the line in a way a simple gravity waste never will. Where a gravity fall is possible we’ll always recommend it first — a pump is the right call when it genuinely unlocks a position, not as a shortcut to avoid lifting a floor.
Moving the basin or bath is the easy bit
Here’s the good news, and it surprises a lot of people. While the toilet is the tricky one, moving a basin or a bath is much more forgiving. Their waste pipes are smaller-bore and carry only grey water, so they’re easier to re-route and far less demanding about fall and gradient. Hot and cold supply pipes can be run almost anywhere with a bit of planning.
That’s why, when we plan a new layout, we’ll often suggest building the design around keeping the toilet close to where the soil pipe already is, then moving the basin and bath more freely around it. You get the fresh look you’re after without the heavy floor work a long toilet move demands. A full refit in Plymouth runs from £4,075 to £10,870, with most landing around £6,340 over 7–10 working days, and a sensible layout keeps a toilet relocation a modest line on that quote rather than a big one. You can see how the wider numbers stack up in our bathroom refit price guide.
Common questions
Can you move a toilet anywhere?
Almost anywhere, but not always cheaply. A toilet’s waste drains by gravity, so the soil pipe must keep a steady fall back to the stack. Positions close to the existing stack are simplest; ones far from it, or below drain level, may need a macerator pump. We always check the layout works before promising a spot.
Is a macerator a good idea?
It can be, when a gravity run genuinely isn’t possible — a loft, a cloakroom under the stairs, or a basement. It opens up positions you couldn’t otherwise use. The trade-offs are that it needs power, has a motor you can hear, is fussier about what goes down it, and may need servicing in time. Where gravity works, we’d choose it first.
Is it cheaper to move a basin than a toilet?
Yes, noticeably. A basin and bath carry only grey water through smaller pipes that are far easier to re-route, while a toilet’s large soil pipe needs a precise gravity fall and usually means lifting floors. We often plan layouts around keeping the toilet near the stack and moving the basin and bath more freely.
How much does moving a toilet add to the cost?
Typically around £500–£1,500 or more, depending on how far it moves and how easily the soil pipe can be reached. A short shuffle to clear a layout is at the kinder end; a long run across the room sits nearer the top. It’s almost always done as part of a wider refit, when the floor is already up.
Got a question we haven’t covered? Take a look at our FAQs or just ask us directly.
No surprises, ever
Thinking of changing your bathroom layout?
Tell us where you’d like the toilet to go and we’ll tell you honestly whether it’s a quick re-route or a bigger job — with a written, all-in price either way. Proudly Plymouth, and straight about cost from the first call.