Scrub up on bathroom maintenance: tips to help prevent damage

Last updated on May 6, 2025
We all love a hot shower, but the constant onslaught of steam and water can damage your bathroom and end up costing you thousands. Allianz Blue Eagle has teamed up with TV presenter, Scotty Cam, to show you how to keep your bathroom in top shape.
"Constant exposure to water, heat, and condensation makes your bathroom a little bit of a hot spot for maintenance issues."
- Scotty Cam

If it’s been a while since you’ve checked your bathroom for damage, there’s no time like the present. “Mould, rot and water leaks can end up costing thousands if they go undetected,” Scotty warns. 

Aussie homeowners are right to be concerned – our bathrooms endure a lot. To help you care for your bathroom, we’ve put together a guide to help you avoid water leaks. 

When water gets into places it isn’t supposed to be, your bathroom will start to show several tell-tale signs of a leak. It’s a good idea to familiarise yourself with these different signs. You may even be able to work out the exact nature of your problem based on the type of wear and tear you find. 

Here are some of the common indicators of escaped water and what you can do about them.

Outline of a paint brush

Typically, your bathroom will be sealed off from the rest of your home by a waterproof layer. If this layer breaks or wears out, water will be able to escape. This can cause significant damage to your walls. 

Luckily there are two ways to test for this without cutting into your walls. The first and most obvious is that the paint in your bathroom will start to bubble or peel away as moisture builds up beneath it. 

The second way to check for escaped water is to knock on your tiles. If your knock sounds hollow, it could be because your bathroom’s sprung a leak, and your tiles are coming loose. 

Replacing the waterproofing layer in a bathroom is a specialist job. Each state has its own rules around who can make the repairs and how they should be done.

If your waterproofing has worn out, you’ll need to speak to a qualified professional about getting new waterproofing installed.

Outline of a combined shower and bath tub

Slow drainage isn’t just annoying, it could also mean your pipes are clogged, broken, or being invaded by tree roots. While a simple clog is usually an easy fix, broken pipes are a much bigger problem.

It can also be difficult to tell the two apart without professional help, but there are some clues to point you in the right direction. For instance, mould on your walls or a sewage smell in your home can be caused by burst pipes. So can indents and even green patches in your yard.

Everyday clogs can typically be fixed without help from a plumber. Start by checking to see if anything has fallen into the drain and caused a blockage. If so, assess whether you can remove it on your own.

If there’s nothing there, you can try using drain cleaner from your local supermarket. Be sure to always follow the instructions carefully as drain cleaning chemicals can be very dangerous when used incorrectly.

Remember to check that the drain cleaner you’ve chosen is the right one for the drain you’re trying to unclog. These powerful chemicals can also damage pipes if poured down the wrong drain.

Speaking of broken pipes, if your slow drainage is caused by leaking or ruptured pipes, you’ll need to ask a certified plumber to make the necessary repairs.

Outline of a window

Mould and mildew are both kinds of fungi that love to grow in moist, still environments. As a result, they’re a good indicator of leaks or poor ventilation.

They’re also bad for your health. You’ll need to remove any mould you find in addition to fixing the underlying moisture problems.

There are several ways to remove mould, including commercially available anti-mould sprays or even white vinegar that you might already have in your pantry. You’ll also need a brush to scrape the mould off the walls.

If you’re using a mould spray from the shops, simply follow the instructions on the packaging. Make sure you wear gloves and eye protection to prevent contact with mould spores. Mould can be dangerous if inhaled. 

If you’re using white vinegar instead, it’s usually a good idea to firstly do a spot test on your walls. This is to make sure the vinegar won’t also stain or damage them.

If you’re happy with the results of the spot test, you can go ahead and apply the vinegar to the mouldy areas. You can be generous with the vinegar here. Be sure to leave it on for an hour before scrubbing the mould away with your brush and some warm water. 

Once you’ve removed the mould, leave the wall to dry out for a couple of hours.

Don’t mix your vinegar with bleach or apply one on top of the other when trying to clean your bathroom. This can create extremely dangerous chlorine gas that can burn your eyes, mouth and lungs. 

Don’t hesitate to fix minor issues. Fixing a small problem today may prevent bigger, costlier problems tomorrow. It can sometimes be cheaper and easier to fix problems yourself.
Whether you make yourself a checklist or hire a tradesperson, regularly checking your home for signs of wear and tear can help you avoid disaster. We’ve even made this handy bathroom maintenance checklist to help you get started.
Learning how to check for leaks and make small repairs is important, but not as important as knowing when it’s time to call in a professional. Big jobs, such as laying down new waterproofing or replacing your shower cubicle, can be dangerous. Depending on where you live, it could even be illegal to do yourself.
Every month
  • Look for cracks or gaps in grout and caulk around tiles, bathtubs, and sinks.
  • Inspect your taps, showerheads, and pipes for drips or leaks.
  • Check for slow drainage in sinks, showers, and bathtubs.
Quarterly
  • Turn on your taps and showers to check your water pressure is strong and consistent.
  • Check underneath your sinks and around toilets, washing machines, and other appliances to make sure your flexi-hoses are dry and in good condition.
  • Make sure toilets flush properly and check for leaks around the base.
  • Remove and clean showerheads and aerators to remove mineral deposits. This is especially important if you live in an area where the water supply is harder than elsewhere.
Annually
  • Inspect tiles, walls, and fixtures for cracks or damage.
  • Remove the cover and clean the exhaust fan to make sure it’s working well.
  • Check that the waterproofing is still sound. Look for any bubbling or peeling of paint on adjacent wall sections.
Scotty Cam stands in front of a well-maintained house with his hands on his hips.
Get on top of preventative home maintenance with Allianz Blue Eagle. 

This article has been prepared by Allianz Australia Insurance Limited ABN 15 000 122 850 AFSL234708 ("Allianz"). It is a summary of key concepts and not meant to represent the complete picture on any given matter. It is not meant to be legal advice. The information should be read in conjunction with the relevant legislation and regulations. In some cases, information has been provided to us by third parties and while that information is believed to be accurate and reliable, its accuracy is not guaranteed in any way.

Any opinions expressed constitute our views at the time of issue and are subject to change. Neither Allianz, nor its employees or directors give any warranty of accuracy or accept responsibility for any loss or liability incurred by you in respect of any error, omission or misrepresentation in this article.

Allianz acknowledges Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the lands on which we live and work across Australia. We pay our respect to First Nations Elders past and present.

Any advice here does not take into account your individual objectives, financial situation or needs. Terms, conditions, limits, and exclusions apply. Before making a decision about this insurance, consider the relevant Product Disclosure Statement (PDS)/Policy Wording and Supplementary PDS (if applicable). Where applicable, the PDS/Policy Wording, Supplementary PDS and Target Market Determination (TMD) for this insurance are available on this website. We do not provide any form of advice if you call us to enquire about or purchase a product.

Allianz Australia Insurance Limited ABN 15 000 122 850 AFS Licence No. 234708 is the insurer of any general insurance products offered, and Allianz Australia Life Insurance Limited ABN 27 076 033 782 AFS Licence No. 296559 is the insurer of any life insurance products offered. Each entity is responsible for any statements and representations made about its products, on this website.