[Closed] Cost of downstairs toilet installation

£15k

No.

Jesus wept.

Maybe 5k??

If the plumbing/waste are easy then do you really need to make the space bigger? Making the space bigger will be what's pushing the price up as it affects lots of stuff.

Depends a lot on route to current drainage. But it seems initially high. Details as ever important.

widen the space by pushing out into the hallway slightly and lengthen it slightly by knocking through to the kitchen.

How long is a piece of string with that!

There could be supporting walls, structural reports, steels to install etc.

Staircases are a key meeting place for joists.

Does it need to be enlarged, can't you compromise on size for the occasional wazz!?

can’t you compromise on size for the occasional wazz!?

Al of this. I just piss on the lawn, benefits of distant naighbours.

£8k for us for everything, design, strip out, units, plastering, tiled flooring, etc. The room is tiny, maybe 1m by 2.5m.
But, all the fittings were roughly in the right place and no walls were moved.

Does it need to be enlarged, can’t you compromise on size for the occasional wazz!?

So much this - do your research on short-projection toilets, compact basins etc. When we did ours in a tiny space I considered one of these as a solution but it was thrown out by my wife...

We had our downstairs loo a couple of months before the start of lockdown.
No walls moved, but we had it re-skimmed, pipes moved, new rad, new bog, basin, tap, floor tiles, half-tiled up the walls, new LED light putting in the ceiling.

We supplied the rad & valves, floor tiles & wall tiles as the quotes from the bathroom company for those were ludicrous.
All in all it cost us about £4500. It was more than I expected to pay, but it was done to a high standard & they did a fantastic job on it.

If getting the walls shifted isn't too much work, I would have though £10k would be achievable!
Hard to say though.
For reference (of smashing things up & moving/removing thinga), we are currently having a large brick cupboard removed from the kitchen. It is where the original oil-fuelled boiler was sited so there's a chimney that has had to come out as well. So, remove chimney poking out of the roof all the way down to the kitchen. Fix roof to cover large hole, fix ceilings & floors, replaster & then fit some plugs in the kitchen where the cupboard used to be (freezer socket low down & a double socket). There was also the cost of scaffolding for a week & a 4yd skip. Oh - they also knocked out a block-built wall that was part of a built-in cupboard that spanned from the chimney in the upstairs room to the door.
This has proven to be much more involved as the chimney was a massive bodge originally. Cost was just under £3k originally, but with the addition of knocking the wall down (not originally discussed) and the extra effort involved I think it's going to tip over to just above £3k.

When we did ours in a tiny space I considered one of these as a solution but it was thrown out by my wife…

Never seen one of those till last WE, visited some friends who had one as their downstairs loo.

Al of this. I just piss on the lawn, benefits of distant naighbours.

+1

Terraced house - I do turn my back to the neighbours houses though 😉

But back to the OP - £15k. For that I'd expect they're moving the entire staircase and rebuilding the room etc - plus digging up concrete floors to lay pipes etc.

I mean, you wouldn't want them to think you're some sort of animal.

That combined urinal / toilet in the post above is a great idea. Where does the sink go?

That combined urinal / toilet in the post above is a great idea. Where does the sink go?

It's a dual purpose urinal/sink. Obviously.  We've got one of those but I don't think my other half knows we have.

I don't think there's any digging up of floors involved. (I've not read the details of the quote myself yet, just took the headline figure! Will check it out properly later.)

The loo is going under a standard staircase. It would go at the "bottom of the stairs end." Apparently the space needs widening just to get it in and make it practical. Not sure if it's 1m wide under there. This would involve some stud work coming out into the hallway.

The wall at the other end would be knocked through and rebuilt in order to lengthen the space, however I'm not really sure that's entirely necessary. But I don't know how much of the quote this is (skip at least, that might not be needed otherwise.)

No tiling needed, no heated towel rail needed, I expect just one GU10 for light would be fine.

The consumer units are under there, not sure what the plan for those is. Maybe box them in which might explain the need for widening.

The only real extravagance (apart from the luxury of an indoor toilet) is the creation of some cupboard space in the void at the bottom of the stairs.

Unless you're in Surrey, where changing a lightbulb is £350 + VAT I would suggest that £15k is a hell of a lot of work - so unless it's a really complicated situation they either don't want the work (cramped space to work in etc) or just think you're rich 😉

That combined urinal / toilet in the post above is a great idea. Where does the sink go?

Don’t forget the built-in bidet too! 🤣

Could easily be realistic. You have to bare in mind in the real world any building or house renovation costs ~3x what the STW experts will tell you.

Also, the standard advice will be to get multiple quotes, again out in the real world, I'd say you've managed an an amazing achievement in getting one.

£15k?!

I think I'd walk upstairs.

Thinking about it don't widen it, our next door neighbour has a brilliant downstairs toilet, the room is barely wider than the toilet so it's almost impossible to fall off drunk.

If it helps - we are in the process of buying a house and the loo under the stairs, according to the floorplan, is 2m x 83cm and feels plenty big enough for occasional use.

And if you've ever stayed in a static caravan you'll know how small you can go with a loo!

We converted our utility after the first lockdown finished, it was really just a small kitchen off the back of the garage.

I stripped everything out, builder bricked up the back door, I fitted the raised floor, joiner did a partition wall for the toilet and handbasin, some insulation, plasterboards, sparky for lights and switches and tin of paint later and we had a cracking laundry room and downstairs toilet. With paint and new flooring down I think the whole job was around £3.8k

EDIT: size wise 2.5m x 2.5m

Its been very useful and has tidied up what was just a dumping ground for crap I couldnt fit elsewhere. I kept some of the old kitchen units and they have become useful in the garage for storing bits and bobs and beer.

I considered one of these as a solution but it was thrown out by my wife…

I read that as 'when I was thrown out by my wife'. 🙂

I'd give prices pre Covid no value as a guide at all.... halycon days of cheap materials and cheap labour...

I built this for my parents last year.
Knocked down a part of a wall between hallway & kitchen, secured with a lintel.
Constructed a shell from scant. Had to run in a hot & cold feed from the boiler but there was already a soil pipe going to upstairs where the loo was going so that was easy to join into. Created a little false ceiling to hide an inline extraction fan.
Think it took me about 4 or 5 days as I was driving 1.30hrs each way daily to theirs.

I think £15k is crazy money but I’m out of touch with what trades are charging.

I think you're underestimating the sheer joy of a garden piss. The shafts of dappled morning light through the sycamores, the babbling of the Brook and the steam rising to mix with mist above the grass on a fresh October morn. Exhilarating.

the room is barely wider than the toilet so it’s almost impossible to fall off drunk

Almost? So you did manage it! How drunk were you?

I think you’re underestimating the sheer joy of a garden piss

Wait until you have experience a garden poo on a misty morning.

£15k OP, you specified the posh lube then?

Updated quote - main points are sacking off the idea of knocking through and extending the room.
Still widening though with stud work.
Hot and cold plumbing for basin and plumbing for loo routed in
Boxing the consumer units
New door
New lighting
Toilet and basin supplied
Floor sorted and vinyl laid
All plastering done, internal walls left to be papered, external walls painted
Soundproofing (💩🤓 - I've got ibs 👍)
Providing some storage in the void at the lower end of the stairs
Basically everything supplied and finished apart from the wife's choice of wallpaper (!)
9k now

I've not spoken to him, so I don't know how difficult the plumbing aspect of it really is.

Vulnerability quote... its all the rage.

Lets break that down...

£15k job
£3k for stuff
£2.5k 10 days labour
£9.5k net profit... boom

Should be no more than £6k and thats expensive.

On a flat renovation a couple of years back the plumber fitted one of those combined toilet washhand basins.There were no instructions or waste kit with it so he couldn't decide whether the sink waste should have a trap and be led in a tortuous path around the cystern or whether the sink waste should simply fall straight into the cystern. He did the former although I think the latter is what's intended. In which case, use as a urinal probably not advised! 🙂

Wait until you have experience a garden poo on a misty morning.

My children won't leave the house the house for fear of the "hedgehog leviathan"

I’ve just done (for a client) a cloak room job, not the same as yours but might give some context.

-rip out existing and dispose, remove floor tiles and prep.
-Supply and fit close couple closed back WC inc all sundries.
-Supply and fit small cloakroom basin, vanity and brassware inc all sundries.
- supply and fit 10m2 floor and wall tiling wood effect planks, to half height with chrome trims
- supply and fit new white steel radiator and TRV valves.

No plastering, no electrical, all supplies in generally the correct location with minor modifications. The toilet and basin were basic but branded items, not £60 bog in a box specials, the brassware was same. I don’t fit cheap junk as it just doesn’t last.

This cost the client £2.5k inc VAT. I should have charged more really, it was a year old quote that I honoured before Covid price rises and to be honest was a bit tight on pricing, as I barely made my day work price and made nothing on all the supply items, but they’re a good customer that I’ve done other work for.