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A functional toilet is something we often take for granted, until it stops doing what it’s meant to. Suddenly, you’re left with a problem that needs fixing fast, and usually, the first question is: how much is this all going to cost?
Toilet issues range from simple leaks to more complex mechanical faults, and while some fixes are inexpensive, others may become a little costly. In this guide, we’ll break down what affects toilet repair costs, the most common problems plumbers are called out for, and when it might make more sense to replace the toilet altogether.
When a toilet suddenly starts acting up, the problem isn’t always obvious. While some issues are easily resolved, others are the result of more extensive plumbing faults. If you’re dealing with any of the following, be sure to give your nearest PlumbCall team a call straight away!
Leaking toilet base: A leak around the base of your toilet usually points to a worn-out wax ring or loose bolts. You might notice water pooling on the bathroom floor, and if so, this is a clear sign something’s wrong. While replacing a wax seal is fairly straightforward for a licensed plumber, leaving it too long can lead to damage to the floor and subfloor; and that’s when repair costs really start adding up.
Running toilet: If your toilet keeps running long after you’ve flushed, it’s not just wasting water; it’s also wasting money. This issue often comes down to a faulty flapper or fill valve. Replacing these parts is generally affordable, but the longer a running toilet goes unattended, the more your water bill will climb.
Weak flush: Pressed the flush button and noticed that it feels sluggish or won’t clear properly? The issue could be within the flushing mechanism, or the result of a partial blockage in the rim jets. This usually calls for inspection and cleaning, or in some cases, replacing the flush valve system.
Clogged toilet: This is easily one of the most common plumbing problems (both locally and worldwide). In most cases, it’s caused by too much toilet paper, wipes, or flushing the wrong objects. While plungers are often enough to solve most minor blockages, severe clogs may need professional attention; particularly if and when the toilet clogs come from somewhere deeper in the sewer line.
Cracked tank or bowl: Cracks in the porcelain seem minor at first but can quickly worsen. Once water seeps through, it can cause ongoing leaks and floor damage. If you’ve spotted cracks in your toilet bowl or tank, it’s worth getting it checked by a professional right away.
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Let’s get straight to the point. The cost of repairing a toilet in Australia is hard to pin down, but we can provide some estimates based on the severity and style of the issues you’re facing.
Here’s a quick overview of what you might expect to pay for some of the most common toilet repair jobs. Please note, these are only estimates and we always recommend getting a quote from your plumber first:
Minor leaks or seal replacement: Replacing a wax ring or fixing a leaky base typically costs between $150 and $250, depending on how accessible the area is and whether any flooring needs to be lifted.
Fixing a running toilet: If your toilet won’t stop refilling, replacing the flapper or fill valve generally costs between $120 and $250. The price may increase if other components inside the cistern are damaged.
Blocked toilet or drain: A simple blockage cleared with a plunger or auger can cost as little as $150, while more stubborn blockages requiring a sewer camera inspection or high-pressure jetting can range from $200 to $400.
Replacing flush mechanisms: If your toilet isn’t flushing properly, a new flush valve, cistern mechanism, or dual-flush button can cost between $180 and $300, including parts and labour.
Cracked porcelain or major damage: Once cracks appear in the tank or bowl, repairs usually aren’t worth it. At that point, most plumbers will recommend replacing the toilet entirely.
As a general rule, most standard toilet repairs fall between $150 and $400, though complex repairs involving hidden leaks or older plumbing systems may cost more.
Sometimes what starts as a simple repair job ends up revealing bigger problems. If your plumber finds that the toilet is too old, cracked, or inefficient, it may be more cost-effective to replace it altogether.
Older toilets, especially those installed before the 1990s, tend to use far more water per flush than modern units. If you’re repairing one issue only to face another a few months later, it might be time to cut your losses and invest in a new model.
Signs your toilet might need replacing include:
Not sure which option makes more sense? Give us a call and let a licensed PlumbCall technician inspect your toilet and give an honest recommendation. We don’t push for replacements unless they’re truly needed; we’ll always assess what’s best for your situation and budget.
Sometimes, your toilet has simply reached the end of its lifespan and replacement becomes the most practical option. According to 2025 data from HiPages, the average cost for a toilet replacement in Australia ranges from $150 to $1000, depending on the job’s complexity.
Here’s a breakdown of where those costs come from:
Toilet unit: A new toilet itself can cost anywhere between $100 and $800, depending on the type and design. Wall-mounted and one-piece toilets tend to sit at the higher end, while standard two-piece floor-mounted models are more affordable.
Installation fees: Hiring a plumber for installation generally adds $100 to $300 to the total, depending on how straightforward the job is. If new plumbing connections, drainage changes, or extra sealing work are required, expect to pay a little more.
Additional materials and modifications: Sometimes you’ll need new parts like a wax ring, bolts, or plumbing fittings. Small extras like these can add $50 to $150 to the total cost.
It’s always worth getting a detailed quote before proceeding, as pricing can vary depending on the brand of toilet and the complexity of the installation.
Every plumbing job is different, and even something as simple as a toilet repair can vary based on several factors:
Before you decide what to do, it’s worth keeping a few key things in mind:
At PlumbCall, we always recommend having a licensed plumber inspect your toilet before making a decision. Our team has the equipment and experience to quickly identify the cause of the issue, then let you know what the most cost-effective option will be.
After inspecting the problem, we’ll clearly explain what needs to be done and give you an upfront cost with no hidden surprises. If it’s urgent, we’ll make it our top priority to get there and fix it as soon as possible.
When it’s repairable, we’ll usually handle it on the spot. However, if replacement makes more sense, we can help you choose a new model that suits your budget and bathroom layout. No matter where you are, we’ll get your toilet back up and running quickly and properly.
Whether we’re working on toilet repairs in Maryborough or a hot water service in Gympie, our team always goes above and beyond. Here’s what to expect when you partner with us!
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