Leak Detection in Cape Town
High water bill, damp patch, or a sound behind a wall - we find it and fix it
T‑Rex Plumbing has repaired leaks across Cape Town since 2011, based in the Southern Suburbs, with confirmed recent work in Claremont.
Signs You Might Have a Hidden Leak
A water bill that's climbed without a clear reason, a damp patch on a wall or ceiling that keeps coming back, a hissing sound behind a wall, or a water meter that keeps ticking when every tap's off - these are the investigative, non-obvious cases.
If you've got an actual burst pipe right now, that's an emergency - see our Emergency Plumber page for fast help.
Dealing With a Burst Pipe Right Now?
Emergency Plumber: For an active burst pipe or flooding, call now rather than reading further. See our emergency plumber page.
How We Find Leaks Without Digging Up Your Property
Leak detection uses specialist equipment. The two methods that work best are acoustic listening equipment, which picks up the sound of escaping water through floors and walls, and nitrogen gas pressure testing, where the line is filled with nitrogen and we listen for the point where it escapes.
Used together, they narrow the leak down to a precise spot, so only that area needs to be opened up. If the pipe is buried somewhere it can't sensibly be reached, we reroute around it instead.
What It Costs, and What Moves the Number
There's no single price for leak detection - the real cost depends on how straightforward the leak is to trace and whether it's behind a wall, under a floor, or underground.
Because every leak is different, we don't publish a fixed price. Tell us what you're seeing and we'll explain what's likely to be involved before anything is booked.
How the Job Runs
We've kept the process simple on purpose.
- Call, Text, or WhatsApp: Tell us what you're seeing and we'll find a time to come take a look.
- We Locate the Leak: We trace exactly where the leak is before we open anything up.
- We Give You a Quote: You'll know what the job involves before we start any work.
- We Repair and Confirm the Fix: We make sure the leak's actually gone before we leave.
Get a Price on Leak Detection
Fair pricing and a clear quote before any work starts. Tell us what's going on and we'll take it from there.
Get a Quote
Areas in Cape Town We Cover
Areas we cover: Claremont, Rondebosch, Kenilworth, Bishop's Court, and Wynberg in the Southern Suburbs, our home base, plus Hout Bay, City Bowl, and the Waterfront.
What Our Cape Town Customers Say
Geyser repair
Excellent service! My geyser was pulling around 24 units of electricity a day and he came out and diagnosed and fixed the issue. He spent over two hours here making sure everything was sorted. Very professional, knowledgeable, and genuinely lovely to deal with. I really appreciated the time and care he took to get everything right. Highly recommend!!
Phumla NinelaGoogle reviewHeat pump installation
Trex Plumbing did an excellent job installing our heat pump. The team was professional, punctual, and their workmanship was of a very high standard. The installation was neat, efficient, and everything was explained clearly. We are extremely happy with the service and would highly recommend Trex Plumbing to anyone looking for reliable plumbing and heat pump installation. Thank you for a great job!
Leon E AdendorffGoogle reviewSaturday call-out
The most incredible service from Trevor. I contacted him on Saturday morning and he was at our property shortly thereafter. Professional, extremely reasonably priced and exceptionally helpful. I cannot recommend him more
Kelly DillonGoogle review
Frequently Asked Questions About Leak Detection in Cape Town
A water bill that's climbed without a clear reason, a damp patch that keeps coming back, a hissing sound behind a wall, or a water meter that keeps ticking over when everything's switched off are all signs.
It depends on where the leak is and what's causing it, so there isn't a fixed price. Get in touch and we'll talk you through what's likely to be involved before anything is booked.
Yes, in most cases. Acoustic listening equipment and nitrogen gas pressure testing let us pinpoint where the leak is before anything is opened up.
An unexplained jump in your water bill is one of the clearest signs of a hidden leak - usually underground or behind a wall, not somewhere you'd spot it by eye.
It varies a lot. Some leaks are found in minutes; one buried deep under a house can take much longer. If a pipe is buried somewhere it can't sensibly be reached, we can reroute around the leaking section instead.