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How To Install A Wall Mounted Toilet – An Easy To Follow Step By Step Guide

Note: This post may contain affiliate links. This means that at no cost to you, we may receive a small commission for made purchases.

Wall mounted toilets are becoming extremely popular. Usually, you’ll find toilets that are mounted on the floor where the plumbing runs under the floor and the water supply enters through the wall.

However, this is not the case with a wall mounted toilet. 

Floor mounted toilets have their own set of benefits as well as their own drawbacks. Floor mounted toilets are prone to accumulating grime and dirt around the grout and joints that come into contact with the floor.

With wall mounted toilets, you wouldn’t have to worry about this due to the fact that they don’t touch the floor. 

If you’re getting bored of cleaning the floor around your toilet, then you should consider getting a wall mounted toilet.

Wall mounted toilets can be a little difficult to install and you may believe that you might even need to hire a plumber to help you.

However, with the right instructions and a good guide, you will be able to master the art of installing wall mounted toilets without a problem. 

Here, we have provided an easy step by step guide for installing your wall mounted toilet like a professional!

Benefits Of A Wall Mounted Toilet 

Other than the sleek and stylish design of a wall mounted toilet, there are many other benefits to choosing this option. Firstly, you are able to adapt the height to suit your needs.

This is especially useful for individuals who have reduced mobility. You can avoid the risks of falling as well as increase the comfort of the toilet experience. 

It is also a great option for saving space. If you have a smaller bathroom, then this is a great option for you. It will help to make your bathroom feel much bigger as wall mounted toilets are very compact (see also ‘The 8 Best Compact Toilets For Small Bathrooms‘).

These are also a great option for people who are wanting to add an extra toilet in the home as these can fit in even the smallest of wash closets. 

The toilet bowl (see also ‘How to Remove Brown Stain in Bottom of Toilet Bowl?‘) is very easy to clean. There is no dirt and grime around the base of the toilet on the floor like with regular toilets. There are also no hard to reach places for cleaning, ensuring that sweeping and mopping are a dream. 

You may be worried about accessing the cistern for maintenance issues. The good news is that thorough maintenance of the cistern is rarely required if installed correctly, you can still access it via the flush plate. 

Lastly, wall mounted toilets are extremely popular due to their positive ecological aspects.

This is because of its water savings. Most of the models come with cisterns that allow for the adjustment of the flushing volume. This means you can choose how much water you use.

On top of this, they are usually less noisy than most other toilets anyway. 

There are all these reasons and more for choosing a wall mounted over floor mounted toilet.

They add style and flair to any bathroom and are sure to turn heads when your guests and family come to visit.

If a wall mounted toilet sounds like the best choice for you and your home, then make sure to use this handy, helpful, and easy to follow step by step guide on how to install your new toilet. 

Things To Prepare 

There are a few things you need to prepare before you begin the installation of your wall mounted toilet. To start, you will need to switch off your water supply.

Next, you’ll need to uninstall and remove your old toilet system. In order to do this, you will need to drain the water tank at the back of your toilet followed by the removal of your toilet connector.

After this, you can cut and break the grout seal at the bottom of your toilet using a chisel and hammer. Next, you must move the waste pipe and lastly, seal up the hole in the floor. 

You will need to make sure you have the correct measurement throughout this process, so make sure to note this down and use a tape measure as you go.

Make sure to follow the instructions provided with the product you purchased alongside this guide to make sure you are installing it correctly.

As well as this you will need to make sure you have the right protective gear for using a saw, silicone gun, and drill. 

Altogether, the installation of this product will take around 3 hours or more. So, make sure to set aside plenty of time to dedicate to the installation of your wall mounted toilet. 

Tools And Equipment Needed

There are several tools and equipment you will need in order to install your brand new wall mounted toilet.

Make sure you gather these things before you start the installation process to ensure that it goes quick and smooth. The required tools and equipment are: 

  • Tape measure
  • Spirit level
  • Pencil
  • Concrete drill bit
  • Hammer drill 
  • Ratchet spanner
  • Mallet
  • Pliers
  • Screwdriver
  • Sandpaper
  • Hacksaw
  • Sealant gun
  • Silicone sealant 
  • Sharp utility knife
  • Bucket
How to Install a Wall Mounted Toilet – An Easy to Follow Step by Step Guide (1)

Installing Your Wall Mounted Toilet 

Now, we can make a start on installing the wall mounted toilet. Here is your step-by-step guide for doing so. 

Assembling The Mounting Frame 

Once you have finished the preparation steps, you will need to put the mounting frame together.

This will indicate where the toilet will be mounted to the wall. In order to do this, you must put the bars that make up the frame together. Follow the instruction manual for your particular make and model. 

After this, make sure to install the correct brackets as well as the flushing pipe for the tank.

Lastly, put the tank onto the frame. You will need to use a torque wrench to make sure the fasteners are tight in place. Put the metal feet onto the end of the frame and use the plastic clamp to fasten the waste pipe. 

Measuring And Marking The Wall And Floor

This is an important step of the process as it will mean that your toilet is sufficiently high enough off the ground as well as making sure it is level. Nobody wants a wonky toilet.

To start, you will need to draw a straight line that measures 1.08m from the ground up on the wall. This line will need to overlap with the middle of the waste pipe. 

Next, draw horizontal lines across the line you just drew. The first line you draw will need to be 1m from the ground, and the second will need to be 1.08m from the ground.

After this, you will need to mark out two points on the second horizontal line. Thes marks will lie 235mm on the left and right sides of the vertical line. 

Place the mounting frame so that the pipe at the bottom sits in the plastic clamp perfectly. Next, mark where the metal feet of the frame touches the floor. Then, you can move the mounting frame to the side. 

Installing The Mounting Frame

For this, you will need to drill holes into the wall and floor using a 10mm drill bit. Following this, place plastic anchors into the holes. Grab the mounting frame and put it in place.

The feet should be placed in the same place as where you marked them before. Secure the frame into the floor using screws. 

Use the threaded bar to connect the mounting brackets to the top of the mounting frame.

Next, using screws, secure the brackets to the wall. Lastly, you will need to move the threaded bar to align vertically with the frame. Make sure to use a spirit leveler when you do so. 

Installing The Flushing Mechanism

Inside the tank there will be a red handle, you will need to remove this. After this, take off the lid that covers the water connections inside.

The stop valve will then need to be installed on the water output that comes out of the wall.

Make sure that the output of the stop valve is pointing right. For the thread, you will need to apply the right amount of Teflon tape in order to prevent any leaks. 

Next, the flexible hose will then need to be installed onto the output for the stop valve. After this, close the stop valve. Make sure to turn on the water supply to the bathroom next and ensure there are no leaks.

The loose end of the hose must then be placed in a bucket to contain the water. Open the stop valve to make sure there is enough water pressure. After this, close the stop valve. 

Then, take the free end of the hose and connect it to the thread of the flush mechanism.

Lastly, you’ll need to install the inspection shaft. The only issue with wall mounted toilets here is that if there is a fault with the flushing mechanism, you will need to open up the wall to fix it.

Installing The Drywall

The next step is to install the drywall. This is so you can cover the mounting frame neatly. Measure the mounting frame against the drywall and cut it appropriately to match up with the fittings. 

Installing The Bowl

Firstly, the flush pipe will need to be joined to the seal. After this, you must put the flush pipe into the toilet bowl. You can mark where the pipe protrudes from the toilet bowl.

Next, put the flush pipe into the flushing unit and then mark where it sticks out from this. 

Make sure to measure the length of the distance between the edge and the mark you have just made. Add together both lengths, plus an extra 5mm.

Then, trim the flush pipe to that calculated length. Next, use some sandpaper to make sure the edges of the pipe are smooth. Lastly, put the flush pipe into the flushing unit. 

The threaded rods that are used to support the toilet bowl will then need to be screwed into the mounting frame. Make sure they are sticking out exactly 6cm away from the frame.

Now, you can install the toilet bowl by placing the threaded rods through the mounting holes. Make sure you use nuts and washers in order to fix the toilet into the correct position.

Check that the top of the toilet bowl is exactly flat by using a spirit level.

Installing The Flushing Plate

Using a sharp utility knife, you can now cut the cover of the flushing plate. Install the mounting bracket of the plate onto the drywall. Next, you can install the air button onto the flushing plate.

After this, connect the blue hose from the flushing unit to the flushing plate. 

Lastly, make sure the stop valve is open and install the flushing plate onto its mounting bracket. 

Last Steps 

For the final step, you will need to push the air button in order to check that the toilet is working.

Hopefully, everything works fine. If this is the case then make sure to secure the edges of the toilet bowl using a silicone sealant. Finally, you can install the toilet seat (see also ‘How To Paint A Toilet Seat‘). 

There you have it, a fully wall mounted toilet! 


Wall mounted toilets are a great and stylish alternative to traditional floor mounted toilets. They are much easier to maintain and you will find that they don’t get dirty as often.

Installing them may not be the simplest of tasks, but if you use these instructions and follow them carefully, you will have nothing to worry about.

If you are still struggling to install your new wall mounted toilet, make sure to seek out help from a professional plumber to make the process a little simpler. Good luck and enjoy your brand new wall mounted toilet! 

author avatar
Anthony Barnes
Anthony Barnes is the founder of Water Heater Hub and a second-generation plumber by profession. Before developing Water Heater Hub, Anthony Barnes was a full-time plumber, and he has undertaken a wide variety of projects over the decades. As a second-generation plumber, it was easy for Anthony to get used to the technicalities of all from a tender age


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