How to choose a good waterproofing company?

6 tips to help you choose a professional waterproofer

Did you know that neglecting to waterproof the wet areas in your house can cost you nearly $2,000 - $3,000 in repairs? The cost of waterproofing maybe just 1-2% of the project cost but sub-par waterproofing can cause 80-90% of the damage.

It may be even more depending on the extent of the water damage. In some cases you may need to get the tiles replaced and walls painted again. And a whole lot more! The best way to avoid this problem is to hire a licensed professional for waterproofing and shower sealing services

Cement, tiles and grout are NOT waterproof. So every time you use your shower, if you don't have a quality waterproofing system the water slowly damages the structure of your house.

Long term water damage can lead to:

  • Mould growth
  • Discolouration of the paint
  • Warped hardwood
  • Cracks in the shower 
  • Cracks in the foundation of the house

So how do you choose a good waterproofing company? Here are handy tips to select the best waterproofing company.

Experienced waterproofing company

A waterproofing company who has been in the business for a long time will be aware of the modern waterproofing techniques and will have the experience required to provide quality services. They use high-quality materials to waterproof wet areas. 

Comply with industry regulations

A good waterproofer in Australia will follow the regulations set by: 

  • Building Code of Australia
  • AS 3740 Australian Standards for Waterproofing of Wet Areas within Residential Buildings

What areas should be waterproofed?

The wet areas in the house like the bathroom, kitchen, toilet, basement, roof, water tank need to be waterproofed to prevent water damage. 

The bathroom areas that need to be waterproofed include:

  • Entire shower floor
  • Shower walls up to at least 1800 mm
  • Walls up to at least 150 mm
  • Bathroom floors made of timber, plywood, or particleboard
  • The entire bathroom if it is above the ground floor
  • Over the hob or step down must be waterproofed to at least 150mm

These are the minimum requirements for waterproofing. The shower is a high-risk area and special care needs to be taken to waterproof it. Your contractor should comply with these regulations and waterproof the entire bathroom floor to avoid unwanted incidents. 

Best waterproofing company in Brisbane
Bathroom Waterproofing( Credits: Australian Institute of Waterproofing)

Waterproofing Licensing 

Check the licenses of your waterproofing contractor. Your contractor must be licensed by the Queensland Building and Construction Commission (QBCC). Also, make sure they are insured to cover any accidents that may happen during the job.  

At Mastercraft, we hold a Construction Waterproofing License from the QBCC.


Research your contractor thoroughly and check their reviews and testimonials from their previous clients. Choose a waterproofing company that has successfully completed their jobs and has happy customers!  

Warranty and contracts 

A reputed waterproofing company will give you a warranty on their services and provide you with a detailed written contract. This contract will include the completion date and cost of the services in writing. Your contractors should also provide you with a waterproofing certificate at the completion of the works. 

If your contractor doesn’t provide you with a written contract and warranty on their workmanship, consider this a red flag and keep looking. 


When it comes to choosing a waterproofing company, don’t go for contractors who have the cheapest quote. Get quotes from multiple contractors and compare the services they are offering.

And go for the ones who meet your budget, offer warranty on their services, and use modern, proven techniques and waterproofing products. They would definitely be worth every penny you spend!

We meet all the criteria - Green flag!

We tick all the boxes when it comes to a good waterproofing company. 

With over 20 years of experience in this field, you can rest assured that you are in safe hands. MasterCraft waterproofers use premium products and modern techniques to waterproof the wet areas of your home. Our tradespersons are fully insured and hold a Construction Waterproofing License to ensure we meet the highest standards.  We provide a 10-year manufacturer’s warranty and 6.5 years workmanship warranty on our installations. 

Your trusted local waterproofing company in Brisbane

Searching for a reliable company for bathroom renovations and waterproofing services in Brisbane? We would love to help!

Contact us today on 07 3063 5633 or complete our waterproofing service request form.

Latest Bathroom Renovation Projects

Unique Bathroom Renovation Process

Step 1


We ask you questions so we can understand your needs.

Step 2


We offer solutions from our packages.

Step 3


We create a design, style and layout from our product range.

Step 4


The next step is: view selected products and make any final changes.

Step 5


On time arrival, efficient planning and quality workmanship.

Our Bathroom Reno Reviews

Looking for a quality Bathroom Renovation?