Undichte Abwasserleitungen gefährden Grundwasser und verursachen kostspielige Folgeschäden. Mit unserer normgerechten Dichtheitsprüfung nach DIN EN 1610 decken wir auch versteckte Undichtigkeiten auf – die Basis für eine gezielte Kanalsanierung.
A leak test is a physical inspection method used to test the functionality of sewer lines and drainage systems. Unlike visual TV inspection, this method reliably detects even hidden leaks at pipe joints, connections, and fittings.
The procedure is based on the Water Resources Act (WHG §60) and is required by DIN 1986-30 for property drainage systems. Computer-controlled measuring devices are used to precisely record the pressure or water loss over a defined minimum test period. The results are documented in a test report that complies with regulatory requirements.
Leaky pipes pose a serious threat to the environment: Leaking wastewater can contaminate groundwater, while infiltrating water places an unnecessary burden on wastewater treatment plants and drives up operating costs. Regular leak testing helps prevent both of these scenarios.
Our experts conduct the inspection in accordance with the relevant standards DIN EN 1610, DIN 1999-100, DIN 4040-100, and the ATV technical guideline. After analyzing the results, we will advise you on any necessary rehabilitation measures—from sewer rehabilitation and spray coating to robotic technology.
Experience shows that a large proportion of old pipes in Germany are leaking. Untreated wastewater seeps into the ground through cracks, misaligned pipe joints, or root intrusion, putting the drinking water supply at risk. Legislators have therefore enshrined in the Water Resources Act (§60 WHG) the obligation to keep wastewater systems leak-free and to inspect them regularly. Many municipalities implement this through local drainage regulations—with deadlines for initial and follow-up inspections.
Depending on the requirements and nominal diameter, we use the most appropriate method—always in accordance with applicable DIN standards and using state-of-the-art measurement technology.
A fast and clean testing method for pipelines up to DN 600. The pipeline is shut off, pressurized with air, and the pressure drop is measured over a defined test period.
A highly precise method in accordance with DIN EN 1610. The pipe is filled with water, and the water loss is recorded throughout the test—ideal for larger nominal diameters.
Leak testing of shaft structures, separator systems, and tanks in accordance with applicable standards. Essential for initial inspections and renovation inspections.
Targeted inspection of individual pipe joints in accordance with DIN EN 1610 and DWA-A 139. Enables the precise location of leaky joints ranging from DN 200 to DN 700.
From new construction inspections to special pressure testing—we cover the entire range of leak testing services.
Mandatory inspection following completion of a site drainage system – Proof of compliance with construction standards
Inspection of pressure pipes, service connections, and special structures in accordance with DIN
Inspection of connection pipes and fittings up to DN 600 in accordance with DIN EN 1610
Our proven testing process—transparent, compliant with standards, and efficient.
We review existing as-built drawings and, if necessary, conduct a TV inspection to assess the condition of the pipes and determine the sections to be inspected.
Before testing, the lines are professionally cleaned to ensure reliable measurement results.
The test sections are isolated using barrier bladders. The test medium (air or water) is then introduced, and the test pressure is built up.
Pressure and water losses are digitally recorded using calibrated measuring instruments over the standard minimum test duration.
You will receive a detailed inspection report. If leaks are found, we will advise you on the best repair options.
Our comprehensive range of services for sewer inspection and rehabilitation.
Leak Testing – Safety for Your Pipelines
Interior coating for long-lasting corrosion protection after cleaning.
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A leak test is a physical inspection method in which wastewater pipes and drainage systems are tested for their functionality. In contrast to visual CCTV inspection, it also reliably detects hidden leaks at sockets, pipe joints, and connections.
Testing in accordance with DIN EN 1610, DIN 1986-30, and DWA-A 139
Results and minutes on the same day
RAL-certified testing procedures
Regulatory-compliant test report as proof
A leak test is a physical inspection of sewer lines in which air or water is used to check whether the line is leak-free. It is required under Section 60 of the Water Resources Act (WHG) and in accordance with DIN 1986-30 for many
property drainage systems—to protect groundwater and the environment.
A leak test is mandatory for new construction projects as part of the final inspection of the property’s drainage system. In addition, many municipalities require periodic retests every 20–30 years. It is also required following sewer rehabilitation to verify that the repair was successful.
First, the pipe to be tested is isolated using sealing plugs. Next, the test medium—air or water—is introduced, and a specified test pressure is established. Over a predetermined minimum test duration, the pressure or water loss is measured by a computer-controlled system and documented in a test report.
Air pressure testing is faster and cleaner, but is more suitable for smaller nominal diameters. Water pressure testing is more accurate and is preferred for larger pipes or when standards explicitly require it. Both methods are approved under DIN EN 1610.
If a leak is detected, we will provide you with comprehensive advice on the necessary repair measures. Depending on the nature of the damage, trenchless methods such as pipe lining, short-run lining with robotic technology, or spray coating may be considered. After the repair, we will conduct another leak test to verify the results.
The cost depends on the length of the pipeline, its diameter, the number of test sections, and the testing method used. We will provide you with a transparent quote in advance with no hidden costs.
Let us advise you—from leak testing to sewer linerehabilitation.