Sistag Services

For us, service is a question of attitude.


As a manufacturer, we know our products like no other. That's why we are also there for you after the sale. For your questions, for maintenance and repairs or for training your team. We will never be 100% satisfied, unless you are too.

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Correct installation is essential for a valve to function properly. This is especially true for our custom-made water control gates. Our experienced technicians are on the road throughout Switzerland and take care of the installation on your system.

In western Switzerland, we work with our service partners Steimer DS SA and G Safety for installations and repairs. This allows us to be on site even faster.


We focus on sustainable solutions. Many of our valves have been in use for our customers for decades. With professional, regular maintenance, we give your valves an extra lifetime.

Contact us to plan the maintenance of your system.

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Our maintenance service package
Annual maintenance and cleaning of all Wey valves by our service team
Keep an overview at all times thanks to the maintenance journal
Warranty extension by 1 year
Special conditions on new valves when replacing them

Further advantages

  • Telephone support in the event of faults
  • Receipt of replacement valves within 24 hours
  • 10-year delivery guarantee on spare parts

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With our production plant in the heart of Switzerland, we can react quickly if something does not work as planned.

Repair on your site

Our fitters & service technicians repair the defective valves directly on your site.

Valve overhaul in our factory

In our prduction site, your valves are professionally overhauled from the ground up and tested for leaks.


Remote support

Our experts will support you by phone or video call in the event of faults and show you repair options.

+41 41 449 99 99


We have almost 60 years of experience with our valves and we are happy to share our knowledge with others. Arrange a training for your maintenance specialists on site at your plant or in our training rooms at the Sistag factory.

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Our training options
Installation & commissioning
AUMA actuator settings and maintenance
Independent maintenance of Wey valves

Please contact us for an individual training offer tailored to your needs.


Visit the
Sistag site


We stand 100% behind what we do. See for yourself and visit our Sistag site in Eschenbach LU.

Do you have any questions or would you like to learn more about our services? We will be happy to provide you with answers and information.

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