Who we are

Anchored in Switzerland and internationally active, WALO is managed as a family business in the 4th and 5th generation. For over 100 years, WALO has focused on the combination of consistency and innovation.


What we do

WALO is active as an innovative total solutions company in all markets of the construction industry. The family-owned company has established itself as a reliable partner in the construction industry and infrastructure projects in Switzerland and worldwide with its decades of experience and the permanent development of sustainable as well as economical solutions.



We have successfully implemented many challenging projects. Therefore, we proudly let our references speak for our work.



Whether residential, industrial, healthcare, outdoor or for sports and leisure facilities - seamless floor coverings have to meet a wide variety of requirements on a permanent basis.



Good buildings and thus satisfied customers require precise construction work. All our employees, from unskilled workers to engineers, play a key role in ensuring that we achieve this goal time and time again.


Sölden Snow Reservoir, Austria

WALO lined Sölden Snow reservoir with Dense Asphaltic Concrete to prevent water loss. The flexible liner was installed in challenging conditions at an altitude of 2,930m and blended in with the surrounding environment.

Case Study Description

The Sölden Snow reservoir in the ski resort of Sölden, Tyrol in Austria was built to store water to supply snow cannons for the production of artificial snow. At an altitude of approx 2,930m above sea level, close to a glacier, it has a usable storage volume of some 400,000m3. To prevent the loss of water through leaks and damage due to weathering in extreme temperatures, the most impermeable, strongest, yet still flexible liner possible was required and so WALO was commissioned to line the reservoir with its specially formulated Dense Asphaltic Concrete (DAC).

The construction schedule had to be very flexible, owing to the changing weather conditions at such high altitudes. Even in the summer, more than two meters of snow fell at the site. The nature of the site, located in an area popular with winter skiers and summer hikers meant that the reservoir needed to blend in with its environment as far as possible.

The formation level of the slopes was covered by a drainage gravel layer placed by paver. The complete surface of the reservoir was then surfaced with a Asphaltic Binder Layer (ABL), Dense Asphaltic Concrete (DAC) layer and a mastic coat. The surrounding top five meters of the slope were covered with local stone chippings rolled into the mastic layer to help the reservoir blend into the natural environment and give it a ‘natural’ finish. The dedicated WALO team’s experience of working with highly specialized equipment at high altitudes in all kinds of weather, meant that the asphalt lining works finished on time after an intensive four month period where 55,000m2 of ABL and DAC were laid, despite the climatic challenges.


Walo Bertschinger AG
Giessenstrasse 5
8953 Dietikon 1


Concrete Rehabilitation and Hydrodynamics

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