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Water Leak: Leak Detection and Repair
In short: Close the main stopcock, protect the electrics, then call 0477 03 88 98: a plumber finds the origin of the leak, repairs it and gives you a job sheet for your insurer.
A visible leak needs quick action; a hidden leak needs patience and the right tools. We find where the water comes from before opening anything, so the damage to floors and walls stays limited.
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First stepsWater off, electrics safe
Leak detectionWithout breaking everything
RepairCost given first
Job sheetFor your insurer
An urgent leak: the right reflexes
Close the main stopcock, usually next to the water meter in the cellar, the garage or under the kitchen sink of a flat. If water reaches a socket or the fuse board, switch off the power of that area.
Mop up, put buckets under the leak and move what can be damaged. Take photos for your insurer.
If water is running into a neighbour's home below, tell them, and the managing agent if you live in a block of flats.
Leak detection: finding the origin without breaking everything
A hidden leak shows through signs: a meter that turns with all taps closed, a stain on a ceiling, damp at the bottom of a wall, a boiler that keeps losing pressure.
The plumber starts with simple checks: meter readings with sections of the installation closed, inspection of visible pipes, toilets, taps and appliances. Then, if needed, he uses detection tools to locate the leak in a floor or a wall.
Locating before opening keeps the work small: one tile or a small part of the wall instead of a whole room.
Toilet, tap and cistern leaks
A toilet cistern that runs into the pan all the time can waste a lot of water without anyone noticing. Put a few drops of food colouring in the cistern: if the pan colours without flushing, the flush valve or the seal is leaking.
A dripping tap, a leak at the foot of a mixer or water under the sink usually come from a cartridge, a seal or a flexible hose. These repairs are quick.
The plumber replaces the faulty part or the tap if it is worn out, and checks the stop valves while he is there.
Leaks on the heating system or the water heater
A boiler that loses pressure every day, a radiator valve that weeps or water at the bottom of a water heater are leaks too. For the heating circuit, a heating engineer finds and repairs the leak.
A water heater leaking from its tank usually needs replacing; a dripping safety group often only needs adjusting or replacing.
In every case, switch off the power of an electric water heater before touching it, and never drain it while it is still on.
Signs of a hidden leak
A water bill going up without any change in habits. A meter that turns while nothing is open.
A stain or ring on a ceiling or a wall, a smell of damp, joints that turn black.
Pressure dropping in the heating system, or a floor that swells near a radiator. Each of these deserves a check.
How the call-out goes
You call and describe what you see; a photo on WhatsApp helps. The office gives you the call-out cost and when a plumber can come.
On site, the plumber makes things safe, finds the leak and gives you the repair cost before doing it.
You receive a job sheet describing the leak and its cause, useful for your insurer and your managing agent, and the invoice.
Signs of a hidden leak
Meter turning
With taps closed.
Stain
On a ceiling or wall.
Pressure dropping
In the heating.
When you call
Water off?
Yes or no.
Where
Room and floor.
A photo
Of the leak or stain.
Building
House or flat, managing agent.
How we work
Phone, WhatsApp or online
Use whichever suits you and tell us your neighbourhood.
Time confirmed
You know when the technician will come and what the call-out costs in advance.
Nothing without your OK
Work starts once you have said yes. Keep the job sheet and the invoice for your records.
What our customers say
Where we work
Our plumbers come out in Brussels, Walloon and Flemish Brabant and, depending on who is free, across Belgium.
BrusselsWalloon BrabantFlemish BrabantHainautNamurLiègeLuxembourgAntwerpEast FlandersWest FlandersLimburg
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Frequently asked questions
What should I do first with a water leak?
Close the main stopcock, switch off the power if water is near the electrics, mop up and take photos.
How do you find a hidden leak?
With meter readings, inspection of visible pipes and appliances, then detection tools to locate it in a floor or wall before opening.
Does my insurance pay for leak detection?
Often, depending on your contract. The job sheet describes the leak and its cause for your file.
Who pays for a leak in a block of flats?
A leak on a shared riser is for the co-ownership; after the stopcock of your flat it is for you or the owner, according to the lease.
My toilet cistern keeps running: is it urgent?
Not urgent, but it wastes water. Close its stop valve and book a repair.
Is the price given in advance?
Yes: the call-out cost on the phone and the repair cost on site, before the work.
How do I book?
Call 0477 03 88 98, send us a WhatsApp message or book online with the « Book an appointment » button. Tell us the municipality and, in a few words, what is going on.
A water leak right now?
Close the main stopcock and call 0477 03 88 98. For a leak that can wait, book online.