Converting a traditional bathtub into a walk-in shower can be a rewarding home improvement project. Not only does it enhance the aesthetic appeal of your bathroom, but it also adds functionality, especially for those looking for accessibility or simply desiring a more modern, luxurious feel. While the project might seem daunting, with the right tools, preparation, and knowledge, converting your bathtub into a walk-in shower can be a DIY project that's both manageable and satisfying.

In this guide, we will walk you through each step of the conversion process, from preparing your space to installing the shower fixtures. Whether you're a seasoned DIY enthusiast or a first-timer, this step-by-step approach will help ensure a smooth and successful transformation.

  1. Preparation and Planning

Before jumping into the conversion process, it's crucial to plan ahead. This initial stage is essential to ensure the project runs smoothly and to avoid any surprises along the way.

a. Assess Your Space

The first step is to evaluate the space and determine if it's suitable for a walk-in shower. If your bathtub is in an alcove, you'll need to consider how to waterproof the area, as well as any structural changes that might be needed.

  • Measure the Area: Take accurate measurements of the space where you want to install the shower. Walk-in showers typically require more floor space than bathtubs, so ensure there is enough room for comfortable entry and movement.
  • Consider Drainage: The drainage system will need to be adjusted. Bathtub drains are usually located in a different spot than shower drains, so you'll need to ensure that the plumbing is adapted accordingly.

b. Choose Your Shower Design

There are various walk-in shower designs to choose from. Here are a few considerations:

c. Gather Materials and Tools

A successful shower conversion depends on having the right materials and tools. Here's a basic list of what you'll need:

  1. Remove the Bathtub

Once you've planned the layout and gathered the necessary tools and materials, the next step is removing the existing bathtub.

a. Turn Off Water Supply

Before you begin, turn off the water supply to the bathroom to prevent any accidents or leaks. You may also need to disconnect the water lines if you're relocating the shower fixtures.

b. Remove the Bathtub Surround

Bathtubs are typically enclosed by tiles, drywall, or acrylic panels. You will need to remove the surrounding materials carefully.

  • Tiles : Use a hammer and chisel to break the tiles away from the wall. Be cautious when removing tiles to avoid damaging the drywall or studs.
  • Drywall or Panels : If you have drywall or acrylic panels around your bathtub, cut through the seams and remove them to expose the studs and plumbing.

c. Remove the Bathtub

Once the surrounding material is removed, carefully disconnect the bathtub. This may require removing screws or bolts that secure it to the floor or walls. After the tub is free, you can pull it out of the space. Depending on its size and weight, you may need assistance to remove it.

  1. Install the Shower Base or Pan

Now that the bathtub is removed, you can begin installing the shower base or pan. The shower base is the foundation of your walk-in shower, and it is crucial that it is installed properly to ensure proper drainage and water resistance.

a. Prepare the Floor Area

Ensure the floor is level and in good condition. If necessary, remove any old flooring or repair any uneven spots. You may also want to install a waterproofing membrane over the subfloor to prevent moisture damage.

b. Install the Shower Pan

Place the shower pan in the designated space and ensure it fits snugly. If necessary, use a level to make sure the pan is perfectly even. Follow the manufacturer's instructions to secure the pan in place, usually by applying a layer of mortar underneath. Once the pan is in place, leave it to set and cure according to the instructions.

  1. Waterproof the Walls

Waterproofing is a critical step to prevent water damage to the walls surrounding your shower. This is particularly important in areas like the corners and seams, where water can seep through if not properly sealed.

a. Install a Waterproof Membrane

After the shower base is set, install a waterproofing membrane on the walls. This can be a roll-on membrane or a sheet membrane, depending on your preference. Ensure that the membrane overlaps the edges of the shower base to create a fully sealed area.

b. Install Cement Backer Board

If you plan to tile the shower walls, install a cement backer board over the waterproof membrane. The backer board provides a solid, durable surface for the tiles and prevents moisture from reaching the wall studs.

  1. Tile the Walls and Floor

Tiling the walls and floor is a time-consuming but satisfying step. Tiles are an excellent choice for creating a visually appealing and durable shower area.

a. Plan Your Tile Layout

Before you start tiling, plan the layout to ensure that the tiles are aligned and evenly spaced. Start from the center of the wall and work your way out. This ensures that the tiles are symmetrically placed.

b. Apply Tile Adhesive

Using a notched trowel, spread tile adhesive over a small section of the wall. Begin placing the tiles, pressing them firmly into the adhesive. Be sure to leave small gaps between tiles for grout. Continue this process until all walls are tiled.

c. Tile the Floor

Tile the shower floor last. This step requires a careful layout, as the floor tiles should be arranged to allow proper drainage towards the shower drain. Use a tile cutter to trim tiles as necessary to fit around the edges.

d. Grout and Seal the Tiles

Once the adhesive has dried (usually 24 hours), apply grout between the tiles using a grout float. Make sure to clean off any excess grout as you go. After the grout has dried, seal the grout lines to prevent moisture penetration.

  1. Install Plumbing Fixtures

Now that the shower walls and floor are finished, it's time to install the plumbing fixtures, such as the showerhead, faucet, and controls.

a. Install the Shower Valve and Faucet

Install the shower valve and faucet according to the manufacturer's instructions. Ensure that the connections are tight to prevent leaks.

b. Attach the Showerhead

Attach the showerhead to the shower arm. If you're adding a handheld showerhead, install a mounting bracket and the necessary plumbing connections.

  1. Finishing Touches

After the shower is fully installed, it's time to add the final touches to complete the look.

a. Install Shower Doors or Curtains

If you're using a glass door, install the frame and secure the door in place. If you prefer a shower curtain, install a curtain rod and hang your shower curtain for a more open, minimalist design.

b. Test the Shower

Turn on the water and check for any leaks or issues with water flow. Make sure the drainage is functioning correctly and that the water is properly contained within the shower area.

Conclusion

Converting your bathtub into a walk-in shower can dramatically improve the look and functionality of your bathroom. While it is a complex project that requires careful planning and attention to detail, it is entirely achievable with the right tools and techniques. By following these step-by-step instructions, you can transform your space into a modern, accessible, and luxurious walk-in shower that will enhance your daily routine for years to come.