Drinking water - the most essential ingredient in diets

A functioning drinking water supply is essential for society. Water is the most essential ingredient in diets. With precise analysis and continuous controls, WESSLING ensures that consumable and hygienically perfect drinking water is available.

WESSLING expert checks a wasser sample

It is in the natural interest of municipalities, water suppliers and industry to protect drinking water as the number one ingredient. Our experts support this task with their long-term expertise. As a result, our customers receive detailed and reliable analytical and test reports. After registering for the WESSLING customer portal, they can view and download them online at any time and from anywhere.

Equipment and accreditation

In addition to our specialised and interdisciplinary teams, our customers can also rely on the modern equipment of our laboratories. They enable us to provide the complete spectrum of microbiological and chemical parameters of the Drinking Water Ordinance.

These high quality standards are the prerequisite for WESSLING being accredited for the sampling and analysis of drinking water (DIN EN ISO/IEC 17025). Our laboratory sites are also approved as drinking water testing laboratories in accordance with the Drinking Water Ordinance.

Our range of services in the field of drinking water

Consumable drinking water has to meet several criteria: it must be colourless, odourless, free of pathogens and must not be harmful to health. Our range of services meets these requirements - for security of supply and your company's success.


WESSLING takes a water sample

Drinking water samples are taken by our qualified and experienced specialists. This is essential for effective and reliable analytical results.


  • Use of duly adapted sampling systems (random and direct sampling, stagnation samples, sampling in hot water systems)
  • Sampling of self-sufficient water supply facilities
  • Sampling of bathing water

Analysis and consulting

Experts take care of suitable samples for the laboratory

On request, our experts will take care of the complete project handling - starting with the selection of the suitable analysis of the samples in our laboratory to the transmission of the test data to the responsible authorities.


  • Extensive spectrum of microbiological and chemical parameters of the Drinking Water Ordinance
  • Legionella management
  • Micropollutants
  • Range of over 350 different herbicides and biocidal products
  • On-call service
  • Evaluation of test results
  • Authorities management

In addition to sampling and analysis, we provide comprehensive consulting as well as concepts for water management, the industry and the public sector to ensure long-term water quality. Find out more about our services regarding water monitoring, hydrogeological surveys, site analysis as well as water remediation consulting.

Are you looking for advice on groundwater topics?

We will be happy to support you.

Bottom of a pool

Comprehensive analysis and consulting

Legionella management at WESSLING

Our specialists provide the entire spectrum of legionella analysis - for drinking water plants of all sizes as well as for ventilation systems.

Read more
WESSLING expert checks a wasser sample


Customer seminars: sampling of drinking water

Increase your company's success: at the WESSLING Academy, experienced specialists from 40 different professional groups pass on their knowledge.

Read more

Seals and certifications

Awards for your company

Let us advise you if you plan to certify your company according to a recognised quality standard or if you would like to have your product awarded a seal.

Read more

Comprehensive analysis and consulting 1 / 3