Smoke test: find the source of a bad sewer smell
A sewer smell in the bathroom, a cellar that smells stale? Technical smoke injected into the network shows where air escapes, where the eye sees nothing. If the smell comes from the street, report it to Vivaqua in Brussels.
✓ Finding the origin of sewer odours
✓ Checking drains and connections for leaks
✓ Air paths under a roof membrane
Brussels · Flemish Brabant · Walloon Brabant
Smoke test: when do you need it?
Persistent bad smell
A sewer smell in a bathroom, kitchen, toilet or cellar.
Doubtful connection
A connection made or modified whose tightness is uncertain.
Smell from a service void
A duct, false ceiling or partition through which network air comes up.
Air paths under a roof
A membrane that lets air or moisture through.
How it works
01
Preparing the network
We locate the drainage network and block the outlets involved.
02
Injecting technical smoke
Smoke designed for these tests is injected into the network, or under an accessible membrane.
03
Watching the exit points
The smoke comes out only through defects: joints, cracks, traps, connections.
04
Location and advice
Exit points are marked and photographed, with recommendations.
What we detect
Why choose AXPRO
Visible to the naked eye
The defect can be seen: the smoke draws the path of the leak.
No prior dismantling
We test the network before opening partitions or floors.
Complementary
Can be combined with fluorescein or camera inspection to confirm.
Frequently asked questions
Is the smoke dangerous?
We use a technical smoke designed for these tightness tests, we tell occupants beforehand and ventilate if needed. The smoke only comes out through defects in the network.
Where can a sewer smell come from?
A dried-out trap, a crack, a faulty connection or a sealing defect on the drain. The test helps locate it.
Do I need to be present?
Yes, or arrange access to the rooms concerned. We tell you how to prepare when you book.
What happens after detection?
You receive the findings and recommendations. The repair is entrusted to the professional of your choice.
Discover our other services
Damp and humidity
Water ingress, condensation, rising damp or a hidden leak: the symptoms look alike, the causes do not.
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Leak detection
A stain on the ceiling, a water bill that keeps climbing, a heating system losing pressure: before anything gets broken open, AXPRO pinpoints the exact source of the leak with methods that respect your walls and floors.
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Thermal camera
A thermal camera reveals temperature differences hidden behind a wall, floor or ceiling.
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