Shower repair is not always covered by home insurance. In most cases, policies only cover sudden and accidental water damage, such as a burst pipe or unexpected leak. Issues caused by wear and tear, failed waterproofing, cracked grout, poor maintenance, or long-term leaks are usually excluded. In this blog, we’ll unpack the inconvenient truths about shower repair, water damage, and insurance claims, including what insurers typically look for and how to better prepare your claim when coverage may apply. Home insurance rule for water damage Water damage has become one of the biggest risks for Australian homeowners. According to Chubb Australia, water damage accounts for 34% of property claims, which is more than double the rate of fire-related claims at 16%. The cost of these claims has also risen sharply. From 2014 to 2018, water damage claims increased by 72%, with the average claim cost rising from A$17,627 to A$30,361. The risk is even higher in Western Australia and Victoria, where claim rates are reported to be 20% above the national average, according to Plumber Magazine. Before diving into the specifics, everything in home insurance coverage for water damage comes down to a single principle that Australian insurers apply universally: “If it occurs all at once, it’s covered. If it drags on, it isn’t.” This isn’t informal advice. It reflects the explicit policy language used by major Australian insurers, including AAMI, Suncorp, and CommBank. Your policy covers sudden and accidental damage caused by a defined event. It does not cover gradual deterioration, wear and tear, or damage that could have been prevented with routine maintenance. For showers specifically, this distinction is brutal. The vast majority of shower leaks, including failed waterproofing membranes, cracked grout, and degraded sealant, are gradual by nature. They develop slowly over the years. And that means they fall squarely into the excluded category, regardless of how severe the resulting damage becomes. Important: Waterproofing membranes have a lifespan of just 10–15 years. When they fail, and they will, that failure is classified as a maintenance issue, not an insurable event, by virtually every Australian insurer. What is and isn’t covered for shower damage? Here is the practical coverage breakdown for Australian homeowners, based on standard policy terms from AAMI, Suncorp, Allianz, and CommBank: Likely covered Not covered Sudden burst pipe in shower wallAccidental overflow — single eventResulting damage to floors/walls/ceilings if the cause is sudden fire or smoke damage to the bathroom Gradual escape of liquidFaulty or leaking shower recess/baseWear and tear / poor maintenanceFailed waterproofing membranePoor installation or workmanshipMould from a neglected leak Critical distinction: Even when consequential water damage is covered, the cost to fix the shower itself remains your responsibility. Insurance pays for what the leak damaged, not the source of the leak. One often-overlooked hazard: burst flexi-hoses.  Suncorp data shows flexi-hoses account for 1 in 10 water damage claims in Australia, with an average claim cost exceeding A$27,500. Around 30% of inspected hoses need replacement. Because a flexi-hose failure is sudden, it typically is covered, but the shower or vanity itself still isn’t. The real financial cost when you’re not covered Understanding what you’ll likely be paying out of pocket is essential for planning. Industry data shows undetected leaks can add A$300–$1,200 per year to your water bills alone before any structural damage is factored in. Type of Repair Estimated Cost Basic shower repair/renovation A$1,000–$5,000 Structural damage repair A$10,000–$25,000 Mould remediation A$2,000–$8,000 Professional waterproofing (preventive) A$500–$1,500 Chubb Australia’s data shows the average water damage claim has grown from A$17,627 in 2014 to A$30,361 by 2018 — a 72% increase in just four years. Water damage now accounts for 34% of all property claims, nearly four times the rate of burglary claims (9%) and double the rate of fire claims (16%). For Western Australian homeowners, the picture is even starker. WA records claim rates 20% above the national average, alongside Victoria, driven by local building methods and ageing infrastructure. Nearly 40% of Australians have experienced water leaks from heavy rain, according to NRMA Insurance’s 2024 data, yet fewer than 20% of homeowners take active precautions against water damage. How to file a claim and strengthen your position If your shower damage was caused by a sudden event (such as a burst pipe), here’s how to give your claim the best chance of success: Document immediately.  Photograph and video the damage before touching anything. Timestamps matter. Mitigate further damage.  Shut off the water supply and dry the area — but don’t make permanent repairs before the adjuster visits. Get a plumber’s report.  A written statement confirming the cause was sudden and accidental (e.g. pipe failure, not gradual corrosion) significantly strengthens your claim. Show your maintenance records. Receipts for past grout repairs, resealing, or plumber inspections demonstrate you weren’t negligent which can be decisive for borderline claims. Understand your excess.  Many water damage claims cost A$5,000–$10,000. Factor in your policy excess before deciding whether to lodge a claim at all, as claims can affect future premiums. If your claim is denied: You can request an internal review, escalate to the Australian Financial Complaints Authority (AFCA), or engage a public loss assessor to argue on your behalf. A denied claim is not always final. Final thoughts The bottom line is that shower repair itself is rarely covered by home insurance in Australia unless the damage is caused by a sudden, unexpected event. Gradual leaks from worn grout, failed membranes, ageing sealant, or poor maintenance are usually excluded. With water damage claims rising by 72% and WA claim rates sitting 20% above the national average, proactive shower maintenance is one of the most cost-effective ways to protect your property. This is where The Shower Repair Centre can help. By identifying and repairing leaking showers early, often without the need for tile removal, our team helps homeowners prevent small leaks from becoming major water damage issues. If you’ve noticed signs of a leaking shower, such as cracked grout, mould, musty smells, loose tiles, or water stains, contact us

Author: Mark Studdert Updated: May 13, 2026 A well-maintained bathroom isn’t just about presentation. Over the years, we’ve seen how small issues left untreated can turn into major water damage problems, with failed waterproofing repairs often costing between $5,000 to $15,000, and even standard leak repairs reaching thousands of dollars. On the other hand, keeping your bathroom properly maintained can add real value to your property. Property experts suggest that an updated and well-looked-after bathroom can increase a home’s value by up to 5%, making preventative maintenance a smart long-term investment. That’s why regular shower maintenance matters, whether you’re a homeowner, landlord, property manager, hotel, hospital, or managing strata properties. A little attention early can help avoid much bigger and more expensive problems later on. How much does a bathroom renovation cost in Australia? Current data shows bathroom issues in Australia often stem from waterproofing failures or leaks, driving repair costs higher than basic upkeep. Repair Type Average Cost Range (2026) Common Causes Waterproofing failure remediation $5,000–$15,000  Inadequate membranes, poor application General leak/waterproofing repairs $800–$8,000  Tile removal, substrate damage Annual professional inspection $200–$400  Early detection prevents major fixes Full renovation (if ignored) $20,000–$35,000 median  Escalated from unrepaired damage These figures are national averages; costs rise 15-20% in high-demand areas like Sydney. So instead of spending on an expensive renovation, regular shower maintenance should be done by property owners to catch small leaks, loose tiles, and failed seals early before they turn into major waterproofing damage. By booking routine inspections and repairs, property owners can help protect their bathroom, avoid unnecessary renovation costs, and extend the life of their shower. Top Four Shower Maintenance Tips At The Shower Repair Centre, we’ve spent more than 28 years helping Australians prevent shower leaks and avoid unnecessary bathroom renovations.  Here are four simple but highly effective shower maintenance tips every property owner should know. 1. Protect Your Shower Screen with a Glass Sealer One of the most overlooked parts of shower maintenance is protecting the shower screen glass. Applying a professional glass sealer helps reduce soap scum buildup, hard water stains, and mineral deposits that can permanently damage the glass over time. This issue is commonly referred to as “glass cancer,” where harsh chemicals and mineral exposure slowly deteriorate the surface of the glass. Benefits of applying a shower screen sealer include: Together with regular maintenance, a quality glass sealer can help extend the life of your shower screen by up to three years after application. For ongoing protection, it’s also recommended to wipe down your shower glass after use and avoid leaving strong cleaning chemicals on the surface for extended periods. 2. Choose Larger Tiles for Easier Maintenance If your bathroom requires repairs or refurbishment, choosing larger-format tiles can significantly improve both maintenance and appearance. Large tiles have become increasingly popular in modern bathroom renovations because they offer both aesthetic and practical benefits. Why larger shower tiles are beneficial: Because grout lines are one of the most common areas where leaks and mould issues begin, reducing the number of grout joints can help improve long-term shower performance. If you’re comparing tile and grout solutions, you may also find this guide helpful:Cement-Based Grout vs. Epoxy Grout: Which Is Better for Your Shower? 3. Regularly Check and Maintain Shower Grout Cracked or deteriorating grout is one of the earliest warning signs of shower leaks. Over time, moisture, movement, and cleaning chemicals can weaken traditional grout, allowing water to seep behind tiles. Left untreated, this can result in mould growth, structural damage, and expensive repairs. Signs your shower grout may need attention: Routine inspections can help property owners identify small issues before they become major problems. For more than 25 years, our team has specialised in repairing leaking showers without removing tiles using the innovative DiamoSmart system® and SealRight™ sealant technology. Related Internal Link:How to Maintain Shower Repairs to Last Longer 4. Improve Bathroom Ventilation to Reduce Moisture Poor bathroom ventilation can contribute to mould growth, grout deterioration, peeling paint, and unpleasant odours. After every shower, moisture builds up in enclosed spaces. Without proper airflow, this excess humidity can slowly damage surfaces throughout the bathroom. Simple ways to improve bathroom ventilation include: According to the Australian Government Department of Health, excessive indoor moisture and mould can negatively impact indoor air quality and health, making proper ventilation especially important in wet areas. Conclusion: Prevent Costly Shower Repairs with Regular Maintenance Small maintenance habits today can help property owners avoid expensive bathroom repairs later. Whether you’re managing a family home, investment property, hotel, hospital, strata building, or commercial property, proactive shower maintenance plays a major role in protecting your bathroom and preserving property value. With more than 100,000 showers repaired across Australia, The Shower Repair Centre continues to help Australians repair leaking showers without removing tiles. If you’d like professional advice or assistance with shower repairs, contact our team today or call 1300 888 806. FAQ How often should I reseal shower grout? Inspect grout every 12 months and reseal every 1–2 years. Cracking, discolouration, or recurring mould are signs it’s overdue. Can a leaking shower be repaired without removing tiles?  Yes. Using the DiamoSmart® and SealRight™ systems, leaking showers can be fixed without tile removal, saving time and cost. What causes glass cancer, and how do I prevent it?  Hard water minerals and soap scum permanently etch glass over time. Apply a professional glass sealer and wipe down the screen after each use. How does poor ventilation damage my shower?  Trapped moisture accelerates mould, grout deterioration, and peeling paint. Run an exhaust fan during and for 15 minutes after every shower. What are the early warning signs of a leaking shower? Watch for cracked grout, loose tiles, recurring mould, musty smells, or water stains outside the shower area. Get a professional inspection early. About the Author Mark Studdert is the founder of The Shower Repair Centre, specialising in shower leak repairs, waterproofing, leak detection, and bathroom restoration. With over three decades of experience, he pioneered and