In the canton of Graubünden, the region with the most lakes and rivers, tank inspections of heating oil and diesel tanks are obligatory every 10 years.

For this reason, Simon Wehrli Tankrevisionen GmbH has been carrying out work on fuel oil and diesel tanks for over 40 years. We are your specialist for underground tank systems and building tank systems - from new tanks to tank overhauls.

As a quality inspection body, our core competencies also include service inspections of leakage warning devices for underground tank systems. 

Regular inspection and overhaul increases the service life of your tank system and avoids expensive consequential damage. For this reason, we offer you our professional service all year round!

We at Simon Wehrli Tankrevisionen GmbH are proud of our local roots. That's why personal contact is so important to us.

We are your contact for:

• Tank inspection of underground tank systems and building tanks (heating oil and diesel)
• Tank refurbishment with coatings and inner shell as well as leak warning devices
• Tank cleaning of heating oil and diesel tanks
• Internal shell work, primarily for single-walled steel tanks (mandatory until 31.12.14)
• Installation of new tank systems up to the burner
• Disassembly for conversions or demolition projects
• Check of leak warning devices - mandatory check every 2 years for underground tank systems
• Tank room renovation with PVC cover (protective structure)
• All questions relating to tank systems

We are happy to support you with your concerns and look forward to your call