Vanity Units come in a vast array of shapes and sizes. They offer a variety of styles and finishes suited to you and your budget, as well as the space in your bathroom you are working with.

They free up valuable floor space in your bathroom and give you much more freedom to walk about. It also makes cleaning much easier as the floor will be clear of any clutter, it even provides an excellent and efficient space for the storage of your items, and in bathrooms, this can be valuable!

The tools you will require are:

– Drill with a drill bit suitable for drilling your tiles/walls

– Wire and pipe detector

– Hacksaw

– Tap connector

– Spanners

– Tape measure

– Pencil

– PTFE tape

– Spirit levels of various sizes

– Silicone and a silicone gun

Whatever type of floating sink you choose, double check that you have all of the products and parts.

You should have:

– Carcass of the cupboard unit

– Sink Basin

– Taps (either hot and cold or a mono block mixer tap)

– Tap fittings

– Plug and fittings

– Bottle trap

The first thing to do is to decide where it is going in your bathroom. Be mindful of any moving doors or cupboard drawers, such as a shower screen or the door to get into the bathroom. If you are going to be moving the location of where your sink is, you will probably have to get a plumber, as you will need your hot and cold feed entering into the taps, as well as the wastepipe.


Make yourself familiar with the instruction manual. Once you have found your location, you can start to loosen the drawers if applicable. This will help you so much when you lift the carcass onto the wall.

Measure the length of the back of the carcass and make a note of it. Then find the centre point of your wastepipe, this is done to make sure that your sink will be directly in the centre over the wastepipe and the hot and cold feed. Mark your tiles or wall, where the brackets are going to go, and make sure it is level using the spirit level.

The next step is to use your wire and pipe detector, to ensure there are no wires or pipes behind where you are going to drill.

Put your drill on the standard rotation setting, using the hammer setting could damage or crack your tiles, so don’t do this!

Start your drilling at a 45-degree angle as you get a bite on your tile/wall, then slowly move the drill up to a 90 degree angle and drill to the require depth. Then place your rawl plug against where you’ve drilled and push it into position, you can even use a small rubber mallet to get it in if required. Then you can screw your brackets into the wall, before you go any further make sure they are level with each other, so your sink carcass won’t be lob sided.

The next step is to lift your carcass onto the brackets on the wall, this will hold itself up into position. Once this is in place, then you can measure the level with the spirit level and tighten the sides of the carcass into the wall bracket.

Once this is done, you can connect your sink basin parts together.

First fit your plug and washer, and tighten it up, you can also use the ptf tape here to ensure no water will spill out of your plug. Now you can fit your bottle trap into position, you only have to hand tighten it.

Next, you will want to connect your tap to the sink basin, unscrew the bottom nut parts of the taps. Ensure that the washers are at the end of the hot and cold feed. Then slide them through the hole where the tap is going to be. Once you have done this, you can tighten the tap with the bottom of the nut. Just ensure that the taps are straight and in line with the centre before you tighten them with the tap connector. Use this to tighten the tap nut.

Now you can place your sink basin onto the top of the carcass. Make sure it is butt up against the wall and firmly in place on top of the carcass. Once you have done this, you can measure how much of the waste pipe you will have to cut off with your hacksaw, then you can use a bit of light sandpaper just to smooth off the edge.

Then you can connect and tighten your bottle trap to the waste pipe.

Press the tap connectors up against the hot and cold feed. Use your hands to tighten them as far as you can, as you reach your limit, then you can use the spanner to tighten them up to ensure they are well connected.

You can even put some silicone sealant against the back part of your sink basin to strengthen it to the back wall, although it doesn’t need this as it will be secure on top of the carcass. As well as this, you can strike a line along the back edge and surrounding the basin and carcass, to help protect it from any moisture as well as looking good.

Finally, you can reattach your drawers if you took them off earlier and you’re done!

To see the full step by step video click here –

For any inspiration about getting your own floating vanity sink, check out Bathroom Mountain’s wide variety over on their website –