How to Fit a Vanity Unit
An easy to follow step-by-step guide and video on how to fit a vanity unit. Vanity units are available in many sizes and styles to suit any bathroom, en-suite or cloakroom. They provide a superb storage solution for toiletries and beauty products ensuring your bathroom is kept neat and organised. Fitting a new vanity unit and replacing the taps are just a couple of ways in which you can update your bathroom and create a smart, new look.
Vanity units with basins can be wall mounted or floor standing to suit your bathroom design. With the right tools and techniques, installing a vanity unit is not as complicated as it might appear. Follow the below steps, and you’ll have your vanity unit fitted in no time.
Step 1. Remove the old sink
Before fitting your new vanity unit, you’ll need to switch off the water supply and disconnect the water supplies for the hot and cold valves and basin waste. Once you’ve done this, you can then remove the old sink.
A bathroom sink is typically fitted to the wall with screws or sealant, both of which can easily be removed. If the basin is screwed to the wall, remove the screws and lift the sink away from the wall. If the sink is fitted to the wall with sealant, remove it with sealant remover or by applying heat from a heat gun and using a blade to slice the silicone sealant away. Slowly and carefully remove the basin from the wall.
Step 2. Positioning the vanity unit
Measure the vanity unit and decide on the best position – this will prevent you from fitting it too high or low. Once you’ve figured out where you’d like to fit it on the wall, use a pencil to mark the edges.
If the vanity unit has an open back to allow for the pipework you can make a start on fitting it. If it has a closed back, you will need to cut holes so the pipes can fit into the vanity unit.
Step 3. Fitting the vanity unit to the wall
Double check the marks you’ve made on the wall to ensure they are level. Make sure there’s no difference between the position of the pipes and the holes in the back of the vanity unit by placing it against the wall. If all matches up you can begin to fit the vanity unit.
Locate the wall studs before screwing the vanity unit into the wall. Drill into the studs and fit the unit to the wall making sure it’s securely attached before installing the basin. Once fitted to the wall, use a spirit level to ensure it’s perfectly level.
Step 4. Fitting the basin to the vanity unit
Before fitting the basin to the vanity unit you’ll need to fit the tap and waste. It is easier to install the tap and waste before fitting the basin.
Place and align the basin on top of the vanity unit. Apply silicone sealant to the gap between the basin and vanity unit, this creates a watertight seal and helps to prevent water damage.
The silicone sealant takes approximately 24 hours to fully set. You will also need to seal the gap between the wall and vanity unit.
Step 5. Check for leaks
Check all the connections are secure before switching on the water supply to check for any leaks. Switch the water back on, run the tap and check the connections between the tap, drain and pipework. If there’s no leaks and everything is secure, you’ve successfully fitted your vanity unit. While the silicone sealant is setting, avoid placing heavy objects on top of the unit.
Fix a dripping tap, make soap…
DIY is a great way to save time and money, however to avoid disappointment, invalidating your warranty, and potential injury we recommend hiring a trained professional. This guide on how to fit a vanity unit is for your information only and if you do decide to be bold and try it, we cannot be responsible for any outcome.
Hi, I’m Liz, an interiors blogger. My main focus area is the bathroom, where I aim to inspire anyone who’s planning and designing a new bathroom – you’ll find plenty of tips, how-to guides and a wealth of ideas!