Leak detection in Greater Copenhagen
The suburban wiring network is aging at a rapid pace – and it can be felt now
Large parts of the suburbs of Greater Copenhagen were built over a few decades, and the pipes under the residential roads followed suit. Today, this means that entire neighborhoods are reaching an age where leaks are no longer the exception but something that must be actively looked for.
That's exactly what DWI A / S do. We perform professional leak detection in Greater Copenhagen – for the supplies behind the grid and for those who own the lines after the boundary.
What leak detection in Greater Copenhagen requires
Finding a leak in a densely populated area is a matter of being able to separate the right signal from everything else. District heating pipes and cables share the same route as water pipes, and both can fool an untrained ear.
DWI operators have years of field experience from just this type of network. They know what a leak sounds like through clay soil versus sand fill, and how the signal changes character with the pipe material. That experience is the difference between a guess and a position that can be dug to.
We measure when the city takes a break
The traffic around Copenhagen is noisy at frequencies that are uncomfortably close to a leak. That's why we like to schedule critical listening outside of rush hour – early mornings or night hours, when the network is quiet and even weak signals come through. The planning is agreed with you so that the measurements disrupt operations as little as possible.
Leak detection in Greater Copenhagen – from suspicion to excavation point
Once the zone of water loss has been identified, the task changes: Now the leak must be precisely determined. leak detection In Greater Copenhagen, we use correlation measurement, where the sound travel time between two measurement points reveals the position, and supplement with tracer gas where the leak is too quiet for acoustics – typically in plastic pipes or at low pressure.
We resolve any uncertainty about the actual pipe route by conducting a pipe search before listening. The better the map matches, the faster the intersection will land in the right place.
One coherent network – many different owners
Greater Copenhagen is special in one way: The network is physically connected across municipal borders, but ownership is shared between many players. We work for all of them – from the supply company responsible for an entire surrounding municipality to the housing company, whose internal pipes begin after the boundary. The tasks take us around the entire area, including Ballerup, Gladsaxe, Hvidovre and Taastrup.
For properties with critical operations – hospitals, for example – we organize the search so that the supply is never interrupted unnecessarily.
Leak detection in Greater Copenhagen when water loss needs to be explained
Utilities are increasingly measured by their water loss, and NRW figures that point in the wrong direction trigger questions from both the board and authorities. A systematic review provides answers that hold true: where the loss lies and how the curve has moved since the last measurement.
Read our guide to NRW reduction
The network can sound the alarm itself
Between the passages we are happy to install data loggers, which monitors the network around the clock and sends data to The HydrantAI platform. If the noise pattern changes, the warning comes automatically – and a developing leak can be caught early, long before it causes an emergency break in the middle of morning traffic.
Equipment and training – closer than you think
DWI A / S sells and leases professional search equipment as an authorized distributor of, among other things, Gutermann, and we service the instruments afterwards. If your ambition is to master the subject yourself, the DWI Leak Academy is held basic course in wiring and leak detection at DTU Science Park in Hørsholm – in practice a short drive from all of Greater Copenhagen.
Yes. Call the emergency number +45 70 23 98 98 – for acute fractures, we can often be there the same day.
Yes. We work on both sides of the divide – both in the supply network and in the property's own installations.
No. The listening takes place at the network's measurement points and requires neither excavation nor access to homes.
All common methods are adapted to the material, so plastic pipes typically require tracer gas or correlation, while metal pipes can often be tapped directly.
Contact us with your consumption figures or suspicions and we will suggest the scope and method for the first review.
Contact DWI
Contact us for competent advice, leak detection and pipe location for your waterworks or water supply. We also assist commercial customers and private households with professional solutions.
