How to Install a Bathtub: A Comprehensive DIY Guide

How to Install a Bathtub: A Comprehensive DIY Guide

Installing a bathtub is not only a practical project, but it can also greatly enhance both the comfort and value of your home. Whether you're looking to replace an old tub or upgrade your bathroom, this step-by-step guide will walk you through the installation process, ensuring a successful and satisfying result.

Step 1: Gather Your Tools and Materials

Before beginning, it's essential to have all the necessary tools and materials ready. You will require a new bathtub, a drain kit for the bathtub, an assortment of plumbing tools, a spirit level, wooden or plastic shims, and a tube of silicone sealant. Having everything to hand will make the process smoother and prevent unnecessary delays. It’s also wise to check the manufacturer’s instructions for any specific tools or materials that might be required for your particular model of bathtub.

Step 2: Remove the Old Bathtub

First and foremost, turn off the water supply to the bathroom to avoid any accidental flooding. Disconnect the existing drain and carefully remove the old bathtub. During this process, you should take extra care not to damage the surrounding walls, tiles, or floor. Depending on the state of your old tub and the fittings, you may need a reciprocating saw to cut through any rusted or stubborn plumbing fixtures. A crowbar or pry bar can also be useful in lifting the old tub away from its position.

Step 3: Prepare the Installation Area

Once the old tub has been removed, thoroughly clean the area and inspect the subfloor and walls for any damage. If you notice signs of water damage or mould, these issues must be addressed before proceeding. Repairing any weakened sections of the subfloor or walls is crucial to ensuring a solid foundation for the new bathtub. This might also be a good time to make any adjustments or repairs to your plumbing system, ensuring everything is in top condition for the new installation.

Step 4: Install the Drain Assembly

Follow the manufacturer’s instructions to attach the new drain assembly to your bathtub. It’s vital to ensure a secure and leak-free fit at this stage. Use plumber’s putty around the drain flange to create a watertight seal. If done correctly, this will prevent any potential leaks in the future, giving you peace of mind. Remember to tighten all connections properly, but be careful not to overtighten, as this could damage the fittings.

Step 5: Position the Bathtub

Carefully manoeuvre the new bathtub into position within the bathroom. This step is often easier with the help of another person, as bathtubs can be heavy and awkward to handle. Once in position, use a spirit level to ensure the bathtub is even on all sides. If necessary, place shims under the tub to achieve the correct height and a level installation. A properly levelled bathtub is essential to ensure efficient water drainage and avoid standing water, which could lead to issues in the long run.

Step 6: Secure the Bathtub

To provide stability and prevent the bathtub from shifting during use, it must be securely fastened to the wall studs. Most bathtubs come with pre-drilled holes or fixing points for this purpose. Follow the manufacturer’s guidelines, usually involving screws or nails, to affix the bathtub firmly to the walls. Properly securing the tub will ensure it remains stable and safe for years to come.

Step 7: Reconnect the Plumbing

With the bathtub in place, reconnect the drain and water supply lines. Turn on the water to test the connections, checking for any leaks or drips. If you notice any water escaping, tighten the connections as necessary until the leak stops. Ensuring a leak-free installation at this stage is crucial to avoiding any water damage in the future.

Step 8: Seal and Finish

The final step involves sealing the edges of the bathtub to prevent water from seeping into the walls or floor. Apply a bead of silicone sealant around the perimeter of the tub, paying particular attention to any gaps between the tub and the walls. Allow the silicone to cure according to the manufacturer’s instructions before using the bathtub. Once the sealant has dried, you can proceed with installing any additional trim, fixtures, or finishing touches, such as taps and handles, to complete the installation.

By carefully following these steps, you can successfully install your new bathtub, creating a beautiful and functional centrepiece for your bathroom. A well-installed bathtub not only provides comfort but also adds lasting value to your home, making all the effort worthwhile.

Explore more articles on our blog:

Back to blog

Leave a comment

Please note, comments need to be approved before they are published.