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How to Fit Bathroom Vanity Units (5 Simple Steps)

by E Cavendish 11 Mar 2024 0 Comments
How to Fit  Bathroom Vanity Units  (5 Simple Steps)


Are you ready to give your bathroom a fresh new look? Installing a bathroom vanity unit can be a rewarding DIY project that not only enhances your bathroom's functionality but also adds a touch of style to your space. 

In this comprehensive guide, we will walk you through the step-by-step process of fitting a bathroom vanity unit, ensuring that you achieve professional-looking results. Whether you're renovating your bathroom or simply looking to make some improvements, this guide has got you covered.

Tools and Materials Needed

Before we dive into the installation process, let's ensure you have all the necessary tools and materials at your disposal. Here's what you'll need:

  • Adjustable wrench

  • Pipe wrench

  • Cutter

  • Ratchet spanner

  • Power drill driver

  • Electrician's screwdriver

  • Mains tester screwdriver

  • Tape measure

  • Square

  • Spirit level

  • Tap wrench

  • Silicone sealant

  • Silicone gun

Now that you have your tools ready, let's move on to the essential preparations for a successful vanity unit installation.

Preparing for Installation

measuring for wall cabinets

Measuring Your Bathroom

The first crucial step in fitting a bathroom vanity unit is proper measurement. Measure your bathroom space to ensure you select an appropriately-sized vanity unit. Consider clearance guidelines, such as the distance between the toilet and the vanity unit. In smaller bathrooms, opt for compact vanity units to maximize space.

Choosing the Right Vanity Unit

When selecting a vanity unit, you have two primary options: pre-built and ready-to-assemble. Pre-built units offer convenience and often come with a workmanship guarantee. On the other hand, ready-to-assemble units can be more budget-friendly but require assembly according to the instruction manual.

Now that you've measured your bathroom and chosen the right vanity unit, it's time to proceed with the installation process.

How to fit bathroom vanity unit-Step-by-Step  Guide

bathroom storage

1. Removing the Old Unit

Before you can start installing your new bathroom vanity unit, you'll need to remove the old basin or vanity. Ensure you turn off the electrical power and water at the mains before beginning any work on the electrical or water circuits. Open the taps to drain any remaining water in the pipes.

2. Assembling and Installing the New Vanity Unit

new bathroom vanity units

If you've opted for a ready-to-assemble unit, follow the instruction manual carefully to piece it together. Assemble the vanity unit according to the manufacturer's instructions, ensuring it's done correctly. Measure and adjust the unit's height to match your bathroom's requirements.

3. Installing the Washbasin

Fit the mixer, drain fitting, and overflow pipe to the washbasin following the manufacturer's instructions. Secure these components properly to ensure they function correctly. Apply a bead of silicone sealant around the top of the cabinet before lowering the washbasin into place.

4. Connecting the Water Supply and Drain

Connect the hot and cold water supply hoses to the tap. Ensure that the waste outlet and siphon outlet are properly connected to your drainage system. Check all connections for leaks and tighten them as needed.

5. Securing the Wall Cabinet and Lighting

wall cabinets

To complete your bathroom's new look, install the wall cabinet and lighting. Measure and mark the wall for the cabinet's placement. Drill the wall, insert anchor plugs, and secure the brackets. Install the cabinet shelves, doors, and lighting, ensuring everything is level and secure.

Tips for a Professional-Looking Installation

For a truly professional finish to your bathroom vanity unit installation, consider the following tips:

  • Seek the assistance of a professional plumber for complex plumbing work.

  • Pay attention to plumbing guidelines to ensure proper water drainage.

  • Choose the right vanity unit type and style that complements your bathroom design.

  • Make use of interior design principles to create a statement look.

  • Prioritize product-related considerations for a successful bathroom makeover.

  • Don't hesitate to invest in plumbing services if necessary.


Congratulations! You've successfully learned how to fit  bathroom vanity units step by step. By following this comprehensive guide and paying attention to the installation tips, you can achieve a bathroom upgrade that not only enhances functionality but also adds style to your home. Remember, when it comes to bathroom improvements and remodeling, proper installation is key to a successful project.

Transform your bathroom into a more functional and stylish space with a professionally installed vanity unit. Whether it's a modern interior style or a classic design, your bathroom will benefit from this essential addition. Enjoy your newly upgraded bathroom and the convenience it brings to your daily routine.

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