Ready to hire?

Post your job in minutes, browse real reviews and choose who to speak to.Post a job

Need some tips or advice?

Bathroom Fitting

Sloped bathroom floor with wonky sink, toilet and shower

Anonymous user 26/06/2025 - 9.54 AM

I’m wondering if it’s standard practice for a bathroom fitter to suggest levelling the floor before installing bathroom suites? My upstairs bathroom in a terraced house has quite a slope — around 10mm difference from one side to the other. The floor is old floorboard with accessible joists underneath, so it wouldn’t have been difficult to level. However, my builder never mentioned that levelling was needed. Now, my pedestal sink and toilet are noticeably uneven and wobble. The shower tray is on a riser kit, and although it’s stable, they had to adjust the legs on one side to account for the slope. Because of that, the original plinth doesn’t fit, and they told me the problem was with the plinth. I had to buy a new UPVC plinth, but even that doesn’t sit flush — one side has more of the trim sticking out than the other. I feel like this all could have been avoided if the floor had been properly levelled before any fitting started. Is it reasonable to expect a fitter to bring this up before installation?

Are you a tradesperson and able to answer this question?

3 Answers

Garden Energy

Rating: 5 out of 5

Alloa

If new flooring is being installed, then the floor should be made level, unless it is a wet room.

Answered2 July 2025

Anonymous user

it’s absolutely reasonable to expect a professional bathroom fitter to assess floor levels and advise on levelling before installation. A 10 mm slope is significant, and they should have flagged it, since uneven floors can cause wobbling fixtures and poor-fitting trims, exactly as you’re seeing. Ideally, they should have suggested levelling before fitting anything.

Answered2 July 2025

Anonymous user

Once you have an old terraced house, many standards need to become flexible. For sure you want all floors levelled, maybe even more so in the bathroom where water follows the slope but all that involves costs. Your situation is so similar to a job I recently quoted for but the labour and material cost involved just scared off the client. If I was quoting for that via MyBuilder then I would have simply wasted my money for being shortlisted. So, what you get is a conflict of interests where a trade person needs to keep in mind that a proper job may just cost him/her real money if the full extent of the job is mentioned. I hope you can see that I am not pitting this against you but just trying to explain what the reasoning may have been.

Answered2 July 2025