How Can I Detect a Leak in My House? – Water Leak Detection Guide

Water leaks can cost you more than just a spike in your water bill. If left unresolved, even a slow drip can damage walls, flooring, and lead to expensive plumbing work. This guide will help you detect leaks early, whether they’re easy to spot or hidden beneath the surface.

Common Signs of a Leak on Your Property

• Unexplained increase in your water bill
• Damp patches on walls or ceilings
• A drop in water pressure
• Green patches of grass in dry areas
• Sounds of running water when taps are off
• Mould or mildew smell in certain areas
• Cracks in walls or foundations

Leaks can also go undetected for months, especially if they involve underground pipes or concealed areas. That’s why it’s important to regularly check for any signs of water leaks in your home.

How to Check for Leaks Using Your Water Meter

Step-by-Step: Use a Water Meter to Detect a Leak

Start by turning off all taps, appliances, and irrigation systems. Make sure no one is using any water inside or outside your home. Read your meter and note the numbers. Wait for at least an hour without using any water, then read your meter again.

If the numbers have changed, you may have a leak. This leak detection test works well for spotting hidden leaks or slow drips that are otherwise hard to notice.

What Your Water Use Might Be Telling You

High water use that doesn’t match your household’s habits could mean there’s a leak somewhere. A constantly running toilet, a dripping tap, or a faulty valve can all lead to litres of water lost daily.

When to Repeat the Water Meter Test

It’s good practice to repeat the test monthly or whenever you notice signs of a leak. This helps you identify leaks before they result in major damage or higher water bills.

DIY Leak Detection – Can You Find a Water Leak Yourself?

Simple Ways to Find Leaks Without a Plumber

You don’t always need leak detection equipment to find the leak. A few common methods include:

• Placing drops of food colouring in the toilet cistern. If colour shows up in the toilet bowl without flushing, you have a leaky toilet.
• Checking for water a day after turning off all taps. If there’s still movement on the water meter, a leak might be present.
• Inspecting fittings on your property and around taps for any dripping.

Tools and Gadgets That Help You Detect a Leak at Home

There are simple water detection tools available at hardware stores. Moisture sensors and digital leak detection kits can help find a water leak without damaging your property.

Pros and Cons of DIY Leak Detection

DIY methods are low-cost and work well for surface-level leaks. However, finding a concealed leak or a problem in underground pipes often requires the tools and skills of a leak detection specialist.

When to Call a Plumber to Check for Leaks

Signs You Need a Professional to Find a Water Leak

If you’ve ruled out visible leaks and your water use is still high, it’s time to contact a licensed plumber. Signs include a running toilet you can’t fix, a leaky hot water system, or no obvious cause for a sudden increase in your water bill.

How Plumbers Detect Leaks You Can’t See

Licensed plumbers use advanced leak detection equipment like thermal cameras and acoustic sensors to identify leaks in your home that are not easy to spot. They can pinpoint the exact source of the leak and suggest how best to repair the leak.

What to Expect from a Leak Detection Service

A professional will perform a thorough leak test, inspect all pipes and fittings, and may recommend replacing worn-out parts. Their experience ensures the issue is resolved without trial-and-error.

Common Places You Might Find Leaking Pipes in Your Home

Kitchens and Bathrooms – High-Risk Leak Zones

These areas contain multiple fixtures where leaks can occur. Always check under the sink, behind the toilet, and around the bathtub for signs of dampness or a slow drip.

Outdoor Areas Where Leaks Often Go Unnoticed

Leaks outside your home often occur in irrigation systems, garden taps, and outdoor pipes. A leaking sprinkler or outdoor tap can waste hundreds of litres of water without being noticed.

Slab Leaks and What They Mean for Your Property

A leak under the concrete slab can cause serious damage if not detected early. Signs include warm spots on floors, cracks in tiles, or the sound of water running when everything is turned off.

Is DIY Better Than Hiring a Plumber?

Comparing Costs: DIY vs Professional Leak Detection

DIY methods may save money upfront, but if you fail to find the source of the leak, you could end up with more damage and higher costs. Hiring a professional may cost more initially but can prevent long-term expenses.

Accuracy, Time, and Tools – Which Approach Saves More Water and Money?

Professionals have the right tools to detect a leak accurately and quickly. They also know the ins and outs of plumbing work and local water corporation guidelines, which can help if you need a leak allowance or repair approval.

Long-Term Benefits of Professional Leak Detection Services

Getting a leak detection test done as soon as you notice a water issue ensures your property stays protected. Many local councils even offer a leak allowance if you prove the issue was identified and resolved quickly through professionals.

What to Do After You Detect a Leak

• Turn off the main water supply if the leak is severe.
• Use a bucket to catch water from a dripping tap or pipe.
• Avoid using the affected area until repairs are made.
• Submit an allowance form to your local water provider if eligible.
• Monitor your next water bill to ensure the issue is resolved.

Conclusion

Detecting leaks in your home early helps reduce water lost, lower your next water bill, and protect your property from further damage. Whether you try a DIY approach or call in a professional, the key is to act quickly.

If you’re in Brisbane and need expert help, AC Bathrooms offers trusted, professional leak detection and plumbing solutions. Don’t wait for a small drip to become a big problem—contact us today to find and fix your leak.