Knowing how to fit a toilet is a good DIY skill to have. Whether floor standing or wall hung, this guide will look at how to install a toilet in your bathroom. However, it should not be understood as a replacement for professional services.


A wall hung toilet gives any bathroom a sleek, modern look, and helps to give the illusion of extra space. Models such as GROHE’s CUBE CERAMIC wall hung WC lend a futuristic, chic style to your space, whilst the BAU CERAMIC wall hung WC is a little more traditional in style, but no less sophisticated in appearance.

Here’s how to install your new wall hung toilet:

  • 1. Firstly, you should figure out where to place the toilet. Put the frame of the toilet where you plan to fit it, and then adjust the bracket to the height you want.
  • 2. Making sure that the bracket is in one horizontal line parallel to the floor, drill the holes needed to mount the toilet to the wall and the ground.
  • 3. If this has not already been done, you’ll need to attach the toilet waste pipe to the sewer. If necessary, ask for professional plumbing help.
  • 4. You now need to install the tank according to the manufacturer’s instructions. Attach it to the water supply, and then install it so you can test it out.
  • 5. Next, you need to connect the waste pipe to the toilet. Do this, and then connect the water tank to the flush pipe. Your toilet should have these tubes delivered with it.
  • 6. Your new toilet will have come with the screws needed for installation. You can screw these into the frame, and then finally mount the toilet bowl to the frame.
  • 7. The moment of truth: Flush your toilet to ensure that there are no leaks.
  • 8. That’s it! You’ve installed a wall hung toilet! If you want, you can remove your toilet again and cover the frame with tiles, for example, to give a sophisticated look to your bathroom.


Wall hung toilets may be the new kid on the block, but floor standing toilets still have a lot to offer. Models such as GROHE’s EURO CERAMIC floor standing toilet and the BAU CERAMIC floor standing WC are examples of timeless classics, which exude elegance.

Here’s how to install a floor standing toilet:

  • 1. When you unpack your toilet there should be a manufacturer’s guide on how to fit the flush mechanism. Follow these instructions to find out how to assemble and fit your new toilet’s flush. Ensure that you install any rubber sealing rings where necessary: These are vital to protect against leaks.
  • 2. Make sure the water supply is turned off!
  • 3. After having removed your old toilet you should also remove the old flange around the drain opening. Perhaps this is the first toilet fixture of the bathroom, in which case you can leave the flange around the drain where it is. If replacing an old toilet, unbolt the old flange and then place the new one over the drain hole. Install the mounting bolts and fix the flange to the floor.
  • 4. Now you’re ready to fix the toilet to the floor. However, before jumping right in, there are a few preparatory steps to take. Firstly, get the toilet in the position you want it to be in: this allows you to review if it is exactly where you want it before you put in the effort of installing it. Once you are entirely certain that the toilet and cistern are in the optimal position, you can fix the toilet to the floor.
  • 5. After fixing the toilet to the floor, you’ll be ready to fit the waste pipe. The waste pipe goes in at the back of your toilet. Just before you fit the pipe, you might want to use a caulking gun with a silicone cartridge to get inside the pipe to prevent leakage. Once you put the waste pipe in the back of the toilet, you’ll have a secure, leak-proof fitting.
  • 6. Now you can fix the cistern. When checking your new toilet, you should ensure that any seals are in place. Leaking is never wanted in plumbing, but this is especially true for the toilet.
  • 7. Once you have checked and checked again that the rubber sealing rings are properly in place, you can drop the cistern carefully onto the toilet. If securing your cistern to the wall, you should use your silicone again to help secure it – but this shouldn’t be the only method you use, and you should always screw your cistern on too.
  • 8. Reconnect the water supply pipe to your new toilet. This should be a simple step but can become more complicated if the fixture needs changing. This should be left to a professional plumber.
  • 9. Turn the water supply back on and ensure that the flushing mechanism stops when the cistern tank is full.
  • 10. Optionally, you can use your caulking gun to caulk around the base of your toilet to create a final seal.

So there you have it, you’ve fitted your toilet! Whether you want to install a wall hung toilet, floor standing one, or even something completely different such as a shower bar or a thermostatic bath mixer, all information and tips can be found on our installation guides page.