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How To Waterproof A Walk In Shower: Essential Steps in 2023

A walk in shower is a great addition to any bathroom. They are stylish and can make a small bathroom feel more spacious. However, walk in showers are also notorious for leaking. Waterproofing a walk in shower is essential to prevent water damage to your bathroom. In this blog post, we will show you how to waterproof a walk in shower. We will cover everything from choosing the right shower sealant to properly applying it. By the end of this post, you will know how to keep your walk in shower watertight.

Materials Needed

To waterproof a walk in shower, you will need:
-A sealant
-A wet saw
-A drill
-A putty knife
-A grout float

Step One: Preparing the Area

If you want to waterproof your walk in shower, the first step is to prepare the area. This means making sure that the surface is clean and free of any debris or dirt. You will also need to make sure that the area is dry before you begin. Once the area is prepped, you can then begin to apply the waterproofing material.

Step Two: Applying the Waterproofing Membrane

If you are using a liquid waterproofing membrane, apply it to the shower area with a brush or roller, working it into all of the cracks and crevices. Make sure to get full coverage and that the membrane is evenly distributed. If you are using a sheet-based waterproofing system, cut the sheets to size and apply them to the shower area, making sure that they overlap at all of the seams. Use a utility knife or similar tool to score the sheets so that they can be easily bent and fit into all of the corners. Once the sheets are in place, seal them with tape or another type of sealant.

Step Three: Adding the Shower Base

Assuming you have already completed steps one and two, it’s now time to install the shower base. The base is what the rest of the shower will be built upon, so it’s important to make sure it is level, secure, and waterproof.

To start, find the center of the drain opening on the floor and mark it with a pencil. This will be where you place the base of your shower. If you’re not comfortable working with a level or measuring tape, there are plenty of online calculators that can help you determine the center point of your drain opening.

With the center point marked, begin setting the base in place. Make sure that it is level before proceeding. Once the base is level, use a caulk gun to apply silicone sealant around the perimeter where the base meets the wall. This will help create a watertight seal.

Now it’s time to attach the drain assembly to your new shower base. Follow the instructions included with your particular drain assembly kit. Once everything is connected properly, test your work by turning on the water and letting it run for several minutes. There should be no leaks!

Step Four: Finishing Up

If you have followed the previous three steps, then your walk in shower should be well on its way to being waterproofed. The final step is to apply a sealant around the perimeter of the shower. This will help to create an additional barrier against water and moisture. Once the sealant is dry, you can then grout the tile or stone in your shower. Be sure to use a waterproof grout so that your shower will stay waterproof for years to come.


Waterproofing a walk in shower is a great way to keep your bathroom looking its best. By following the tips in this article, you can easily waterproof your own shower and keep it looking new for years to come. Don’t let leaks ruin your bathroom — waterproof it today!

Samantha Allen

Samantha Allen

Samantha Allen is an authority on high-end spa treatments and steam showers. Through her blog, she provides insight and guidance into home improvement, deluxe spas, and steam showers. She offers comprehensive instructions for those wishing to maximize their at-home spa experience. Samantha has devoted countless hours to researching and evaluating various steam shower models to determine the finest ones available. Moreover, she is a practiced DIYer who has created video tutorials on a variety of topics related to home renovation and luxurious spa activities.