How to Install a Bathtub – Ultimate Guide

how to install a bathtub
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Looking to install that brand-new bathtub and transform the look and feel of your bathroom? Installing a bathtub may seem frightening and complicated, but with the right preparation and guidance, it can be an easy DIY project. This article goes through how to install a bathtub and the steps you should take when installing your new bathtub and make home improvement a breeze. 

How to Install a Bathtub – Preparation Before Installation

Tools You Need

Check that you have all the necessary tools before starting so you save yourself time

Before we start with how to install a bathtub, make sure that you have all the necessary tools and materials ready for installation. You will need a level, pliers, utility knife, silicone sealant, caulk gun, vapour barrier and a wrench set.

Taking Measurements

Next, you will need to measure your space so that your bathtub has a proper fit. Also, plan out where you would like the drain to be located. It is recommended that the drain be placed at least 4 inches from any walls or other fixtures so that the water drains easily. 

Choosing Your Bathtub

An easy solution to choose your next bathtub is by removing the tub you had and choosing a new bathtub that is similar in type and size. Use a guide when changing the style of your bathtub and achieve a different look.

How to Install a Bathtub

Caulk your bathtub to seal the edges and prevent water from getting underneath it

  1. Start by constructing your frame according to the manufacturer’s instructions. Make sure the frame is level and secure before going any further. 
  2. Next, use a utility knife to cut around any pipes or wires that are in your way during installation. 
  3. Lay down some vapour barrier which will help protect against water damage and mould growth in your walls later on. 
  4. Begin placing your tub into its frame using shims if necessary to keep it level and steady as you go along. 
  5. Begin attaching the water supply lines first before connecting them to their valves underneath the tub edge then tighten with pliers or a wrench set if necessary. 
  6. Securely attach the overflow drain pipe to its valve beneath the rim of the tub and connect it with its drain pipe below.
  7. Apply silicone sealant on the inside joints where the two pieces of materials meet as well as on top of screws used for fastening components together.
  8. Finally, caulk every seam around the edges and corners of the tub with a caulk gun.

Tips and Warnings

Use quality components when attaching your bathtub to the floor and wall

  • When unloading heavy items like a bathtub from trucks or trailers, place them onto thick blankets or furniture pads to prevent scratches and avoid structural damage. 
  • Another crucial tip when securing the tub and surround is to use appropriate fixtures and attach them firmly to the wall or floor. We recommend using high-quality parts to keep strong connections with the wall stud after you install the tub.
  • Last but not least, if you have not removed your old bathtub yet, start the removal process by turning off the water. Leave it off until you finish the installation process to avoid accidents.

Enjoy Your New Bathtub!

So there you have it, how to install a bathtub done and dusted! With the right preparation and guidance, you can make home improvement a breeze! Make sure you have all of the proper tools and materials ready before starting, take measurements for an accurate fit, and follow the step-by-step process. For more guides or advice on bathroom renovations, head over to the MyHomeware Blog now!


What are some common mistakes people make when installing a bathtub?

Common mistakes people make when installing a bathtub include:

  • not having the right tools and supplies 
  • not properly connecting the water supply lines  
  • incorrectly measuring the space for their bathtub 
  • failing to seal off any gaps between the tub and walls. 
  • failure to use proper safety measures such as wearing safety glasses or gloves 
  • poor caulking of shower walls which leads to moisture seeping in behind tiles and causing mould growth over time.

How can I make sure my bathtub is installed correctly?

The best way to ensure your bathtub is installed correctly is to hire a professional plumber. A professional plumber will be able to properly measure, cut and fit all of the components necessary for a safe, secure and functional installation. They will also ensure that all seals are properly fitted and tested before putting the tub into service. 

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