Bathroom Waterproofing Cost

Bathroom Waterproofing

What is Waterproofing?

Waterproofing is the process of making an object or structure impermeable to water or dampness. It is a coating that is applied to an object to protect it from the penetration of water.

Waterproofing your bathroom is a great way to keep it looking new for years to come. Not only does it protect your walls and floor from water damage, but it can also help to prevent the growth of mold and mildew.

There are a few different ways to waterproof your bathroom, but the most common is with a waterproofing sealant. This can be applied to the walls and floor before tiling, or it can be used after the fact to protect any exposed areas.

Another option is to use waterproofing paint, which can be rolled or sprayed on. This type of waterproofing will need to be reapplied every few years.

Bathroom Waterproofing Cost

The cost of waterproofing your bathroom will vary depending on the method you choose. On average you can expect to pay around $550 and $780 to waterproof your entire bathroom. A sealant will be the most expensive, while a waterproofing paint is the least expensive.

How Much Does it Cost to Waterproof the Bathroom Floor?

The cost to waterproof the bathroom floor will vary depending on the size of your bathroom and the type of waterproofing material you use.

On average, the cost to waterproof your bathroom will be between $250 and $500 to waterproof a bathroom floor using a sealant. If you choose to use waterproofing paint, the cost will be significantly less.

How Much Would it Cost to Waterproof the Bathroom per m2?

When it comes time to waterproof your bathroom, you can expect around $45 per square metre, still depending on the type of material used and the complexity of the project as well as the other factors mentioned below.

Decide if you want to do the job yourself or hire a professional. If you decide to hire a professional try to get multiple quotes before engaging in your project.

What Will Affect the Cost of Bathroom Waterproofing Job?

There are a few factors that can affect the cost of a bathroom waterproofing job:

  • The size of the shower area.
  • The type of waterproofing material used.
  • The complexity of the project.
  • The experience and qualifications of the contractor.
  • The location of the bathroom.
  • The availability of labour and materials.
  • The prevailing rates in the local area.

What Is the Australian Standard for Waterproofing?

The Australian Standard for waterproofing is AS 3740. This standard applies to both residential and commercial buildings. It covers the installation of waterproofing materials and the inspection of finished projects.

Bathroom Waterproofing

  • A height of 150mm is expected in waterproofing your bathroom walls
  • A height of 1800mm is expected in waterproofing your shower enclosure
  • The entirety of your bathroom and shower floors must be waterproofed
  • Timber made floors, as well as a bathroom located on the second floor of your home, must be waterproofed

Waterproofing is an important part of any building project, and it is essential that the correct procedures are followed. Choosing a contractor who is familiar with the Australian Standard for waterproofing will help ensure that your project meets all of the required standards.

How Does Bathroom Waterproofing Work?

Bathroom waterproofing works by creating a barrier between the bathroom and the outside elements. This can be done with a sealant, paint, or other material that is applied to the walls and floor.

Once this barrier is in place, it will prevent water from seeping through and causing damage. Waterproofing your bathroom will also help to prevent the growth of mold.

When choosing a waterproofing method for your bathroom, it is important to consider the cost, labour involved, and how often it will need to be reapplied. it is different to resealing a bath. Sealants are the most expensive option, but they are also the most durable. Waterproofing paints are less expensive, but they will need to be reapplied more often.

Hiring a Bathroom Waterproofer

When it comes time to waterproof your bathroom, you may be wondering if you need to hire a professional. If you are considering waterproofing your bathroom, it is a good decision to hire a qualified professional. Waterproofing can be a complex process and must be done correctly in order to be effective.

A professional bathroom waterproofer will be able to assess your needs and recommend the best course of action. They will also be able to provide a quote for the cost of the project.

When hiring a professional, be sure to ask for references and check their credentials. It is also a good idea to get multiple quotes before making a decision.

Does My Bathroom Waterproofer Need to be Licensed?

The answer to this question depends on the state you live in. Some states require bathroom waterproofers to be licensed, while others do not. Bathroom waterproofing is an important process that can help to protect your property from future damage.

A licensed bathroom waterproofer can ensure a job is done correctly which will impact the durability of your bathroom area. If you are considering waterproofing your bathroom, be sure to hire someone who knows the nitty-gritty of the process.

Do Tilers Do Waterproofing?

Some tilers may offer waterproofing services, but not all of them do. If you are looking for someone to waterproof your bathroom, it is best to consult a specialist.

There are many different factors to consider when doing your waterproofing project, in this case, you may want to make sure that you can find someone who, though not licensed is well acquainted with the materials and process of bathroom waterproofing.

How to Completely Waterproof my Bathroom?

There are a few steps you can take to waterproof your bathroom:

Bathroom Waterproofing (1)

1. Remove the existing tile and fixtures from the shower area.

2. Apply a waterproofing membrane to the shower walls and floor.

3. Reinstall the tile and fixtures.

4. Seal all of the seams in the membrane with sealant.


5. Apply a coat of waterproofing paint or sealant to the tile and fixtures.

6. Let the paint or sealant dry completely.

7. Reinstall the shower curtain or door.

8. Test the shower area to make sure it is completely waterproof.

There are many different types of waterproofing materials, and it is important to choose the right one for your needs.

How Long Does Waterproofing Last?

There is no one-size-fits-all answer to these questions, as the cost and longevity of waterproofing will vary depending on the specific project.

However, a professional contractor will be able to give you an estimate of how long you can expect your waterproof bathroom to last. In general, the sealant is sure to last longer than waterproofing paint.

Benefits of Waterproofing

The main benefits of waterproofing are:

Protection against water damage: Waterproofing helps to protect your property from water seepage and damage. This is especially important in areas that are prone to flooding or moisture accumulation.

Prevention of mould and mildew: Waterproofing also helps to prevent the growth of mould and mildew, which can cause serious health problems.

Extended life of the structure: Waterproofing can extend the life of your property by protecting it from water damage.


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