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Anyone who ever had a small bathroom knows the value of good storage. I was on the lookout for a practical, stylish, and economical small bathroom storage solution. The floor-standing vanity unit seemed like the perfect answer to my storage problems. However, installing freestanding vanity units as DIY felt like stepping into the unknown. I was not entirely sure where to start with vanity unit fitting. But after some research on Google, I was able to handle the task by myself.
In this blog, I will share with you all the information you need for a successful floorstanding vanity unit installation in the UK.
Tools & Materials For Bathroom Vanity Unit Installation
Before you start, it is important to ensure you have access to all the tools and materials required to perform this DIY task.
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Adjustable spanner
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Screwdriver (check if your unit needs Phillips or flathead)
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Spirit level
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Silicone sealant & gun
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Pencil & tape measure
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Plumber’s putty
How To Install a Freestanding Vanity Unit -Step-by-Step Process
Here is how to install floorstanding vanity unit in the UK. Follow all the steps discussed. In case of any problems or anything you don’t understand, consider getting professional help.
Prep Work: Get Your Space Ready
Estimated Time Required: 2-3 Hours
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First things first. You need to remove old units, clean the floor, and check for uneven tiles or bumps. Freestanding vanities need a flat surface.
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Turn off the water supply. Locate the isolation valves under the sink (or shut off the main supply if needed). Turn on the taps to drain any leftover water.
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Assemble the vanity by following the manufacturer’s instructions to attach legs, shelves, or doors.
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Position the vanity where you want it. Mark the floor with pencil to note its placement. Check the wall for any underground pipes or skirting boards, and adjust accordingly.
Pro tip: If your vanity has a back panel, make sure to cut holes for pipes before moving it into place.
Position the Vanity Unit
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Lift the unit into place and check for the accurate level by using the spirit level on top. You may need to adjust the legs clockwise/counterclockwise until it’s perfectly horizontal.
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Most freestanding units don’t require fixing to walls. But if your floor’s uneven, you may have to install L-brackets on the back to stabilise it.
Connect the Plumbing
In case of existing taps, attach flexible hoses from the fauscets to the water supply valves. Initially, you have to hand-tighten the taps and then use the spanner for a quarter-turn. Remember not to overdo it or you might risk cracking the fittings. Once tightly attached, you will have to turn the water supply slowly and check for any leaks.
For new taps, however, prefer fitting the taps into the sink holes. It’s better if you secure them with nuts underneath. Don’t forget to apply plumber’s putty around the base to keep a watertight seal. Once the faucets in place, move on to attach the trap to the sink outlet.
Secure the Sink (If Separate)
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Apply silicone sealant around the rim of the cutout on your freestanding vanity top.
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Lower the sink into place and press firmly.
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Let the sealant dry for at least 24 hours before using.
Seal the Edges
Before you start splashing water around the countertop, make sure all the gaps and nooks are closed up. You can apply a bead of silicone sealant to properly seal the vanity and sink along the back edge.
Final Checks
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Run hot and cold water to test the tap for any leakages around or under the unit.
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Try opening drawers/doors to make sure they don’t catch on pipes or walls.
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Over time, the unit might settle. Recheck the level after a week, if it feels wobbly or uneven, you may need to tweak the legs.


Hiring a Professional vs. DIY Installation
The installation of a floorstanding vanity unit is safer and more accurate when done by a professional. However, DIY installation is more affordable than professional installation and gives you more creative freedom if you have the necessary plumbing tools and knowledge.
Here in this table we have compared both the options to help you decide whether hiring a professional is more feasible for you or DIY floorstanding vanity unit installation is the way to go.
Factor |
Hiring a Professional |
DIY Installation |
---|---|---|
Cost |
- Professional fee |
- May save on labor costs |
Expertise |
- Experienced and skilled in the installation |
- Depends on personal skill level and experience |
Time |
- Quicker installation due to experience |
- May take longer if inexperienced |
Tools & Equipment |
- Professional has access to necessary tools |
- May need to purchase or rent tools |
Warranty & Support |
- Professional work may come with a warranty |
- No warranty on self-installed vanity units |
Final Thoughts
Installing a floorstanding vanity unit as a DIY is not as complicated as it might seem to be. It can be handled with some knowledge of plumbing tools and information available online. It’s absolutely doable. All you need are the right tools, a bit of planning, and a step-by-step approach ( as discussed in this guide). Remember! The key to my successful floorstanding vanity unit installation was preparation, patience, and the right attitude.
Frequently Asked Questions
Can I install a floorstanding vanity in a half-bath?
Yes, it is possible to install a floor standing vanity unit in half bath. I suggest you to opt for a smaller, narrower unit for a hassle-free fitting. It will ensure a perfect fit for your small bathroom and people can feel comfortable while using it.
What’s the best lighting setup for a floorstanding vanity?
The best setup usually involves layered lighting: task lighting directly at face level (like sconces on either side or a light bar above the mirror) and ambient lighting for overall illumination. You may also consider an LED-illuminated bathroom mirror above the vanity sink unit.
How do I hide exposed plumbing on a freestanding vanity?
Many freestanding vanity units come with concealed pipes. Therefore, you should consider buying a vanity unit that is enclosed or has decorative legs to conceal popes. Alternatively, you can use pipe covers or shrouds for the same purpose. These come in a variety of colours and finishes
What’s the best way to seal gaps between the vanity and wall?
The best way is to use a bead of waterproof silicone caulk along the top and sides where the vanity meets the wall. This prevents water damage and creates a clean, finished look. Ensure the surfaces are clean and dry before applying the caulk.
How much clearance space is needed around a floorstanding vanity?
You should generally aim for at least 24-30 inches of clear space in front of the vanity for comfortable movement. Allow a few inches on each side if possible, especially if there are drawers or doors that need to open fully without obstruction.