For municipalities and utilities.
Rehabilitate what is already in the ground.
Aging networks, limited budgets and a growing list of defects, overflows and complaints. We assess the existing network, find the root causes, plan the rehabilitation that keeps assets in service, and supervise the contractor carrying out the work. Every step documented in a form you can hand to any authority.
What network operators face
Aging assets, limited budgets
Replacing the network is not an option. The question is which pipe needs what intervention, and in which order.
Overflows and flooding
Surcharging manholes and hydraulic overload after heavy rainfall, with complaints arriving faster than answers.
Infiltration and exfiltration
Groundwater entering leaking pipes, wastewater leaving them. Both cost capacity and money.
Inspection data that cannot be used
Years of footage and PDFs in vendor formats, with no structured picture of the network's condition.
What we do for you
Condition assessment and root cause
We analyze existing structures before anyone touches them: condition, hydraulics, root cause. Only then do we decide the right intervention.
Rehabilitation planning
Relining, sealing, structural fixes: the complete concept for the existing asset, designed to be executed to standard instead of ripped out and replaced.
Technical supervision
The works are carried out by regional contractors to our concept. We brief them and supervise until handover.
Documentation you can hand over
Condition coding follows EN 13508-2 and our published SondeScan Standard; the data leaves in an open schema you can map yourself.
Structured data instead of a PDF archive
SondeScan turns every inspection run into structured, reusable data with EN 13508-2 coding and exports to PDF, Excel and structured formats. The SondeScan Standard is published in full and free to read on this site.
Frequently asked questions
Do you replace our local contractors?
No. We engineer the solution and supervise; regional contractors carry out the works. We make them capable of jobs they would otherwise have to decline.
Which coding standard do you use?
EN 13508-2 and the SondeScan Standard, our own condition-coding system, published in full at dunedive.com/standard. In SondeScan, licensed proprietary code sets are not offered or enabled.
Do you work in my country?
We work location-independent around the globe. Analysis, diagnosis and concept happen remote or on site; the physical works are carried out by regional partners we equip, instruct and supervise. We have worked on projects in the United States, Canada, the United Kingdom, the Gulf and Europe.
How does an engagement start?
With a call or an email describing the problem. Usually the first step is an analysis of what already exists: inspection footage, plans, measurements, photos. From that we tell you the root cause as far as it can be determined, and what we would do about it.