AAA Waterproofing Pros: How Much Does Bathroom Waterproofing Cost in Melbourne?

While there are many do’s and dont’s when it comes to DIY work, bathroom waterproofing is something you definetly don’t want to take on yourself. The cost per square meter usually begins at around $35 per sq and generally goes up from there. There is allot of room for error when it comes to this type of work and if not done properly can absolutely cost a fortune in repairs. Read the following article we sourced for an indepth explanation on this.

How Much Does Bathroom Waterproofing Cost?

When you’re renovating your bathroom, there are some DIY jobs you can tackle, but waterproofing isn’t one of them. You may be able to get away with light waterproofing on walls, but waterproofing in wet areas should and in many areas must be carried out by professional waterproofers. If water can find a way in, it will find a way in and structural damage is almost sure to occur that will cost far more than the cost of the waterproofing. Here’s what you need to know before you begin.

You may be able to get away with light waterproofing on walls, but waterproofing in wet areas should and in many areas must be carried out by professional waterproofers. If water can find a way in, it will find a way in and structural damage is almost sure to occur that will cost far more than the cost of the waterproofing. Here’s what you need to know before you begin.

Why is Professional Waterproofing Important?

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Bathroom waterproofing is so important, it is mandated by law and must comply with Building Code Australia (BCA) Australian Standards AS3740-1994. The basic requirements are that:
Shower enclosure floors must be thoroughly waterproofed.
Shower enclosure walls should be waterproofed to 1.8 metres.
Bathroom walls should be waterproofed to a height of 150mm.
If the bathroom floor contains or is made of timber or is on the 2nd floor or higher, it must be thoroughly waterproofed.
The area over the shower enclosure step and down to the floor must be waterproofed to a height of 100mm.
In New South Wales and Queensland, the person who undertakes the waterproofing must hold a current waterproofer’s license. In other states and territories, a qualified waterproofer must issue a compliance certificate upon completion of the job.

The waterproofing process is carried out in two stages. First, a coat of sealant is applied horizonally. When this coat cures, the waterproofer returns and applies a second coat vertically to ensure a tight seal.

Bathroom waterproofing is done before tiles are laid. In many cases, your bathroom renovator or tiler will include waterproofing in their quote. If waterproofing is part of their service, make sure they hold a valid waterproofer’s license if needed and issue a certificate of compliance upon completion of the job.

How Much Does Bathroom Waterproofing Cost?

Bathroom waterproofing can cost as little as $35 per square metre, but that is the low end of the scale. In general, professional waterproofing costs between $500 and $750 for an average bathroom. If the waterproofing is done in more than one bathroom or as part of a complete bathroom renovation, the cost may be lower. In some cases, such as large bathrooms, wet rooms or second storey bathrooms, the cost of waterproofing may be higher.

To get the best price and the best service, get quotes from several services and ask each of them to provide you with all the details about the scope of their service in their quotes. Because you want to know your bathroom will be fully waterproofed, choose the company with the best reputation rather than the one that offers the lowest price.

*Cost and prices in this article are indicative and should only be used as a guide. They also vary locally and are subject to market forces. This article was updated 27 May 2015 to reflect current market pricing.
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