You like to move in nature? No weather is too bad for you to be outside? You want your equipment to withstand all stresses and strains? Then you've come to the right place! Whether it's clothing, backpacks, sleeping bags or outdoor meals: we're your one-stop shop for everything. We don't rely on mass, but on quality and selected brands. True to the motto "small but mighty", we advise you personally and individually so that your equipment is tailor-made for you and fits your adventure perfectly. We have personally tested everything we offer. Because: Your mission is our mission!

I can recommend OST-WEST-TAXI in and around Interlaken. The owner took us for a marvelous sightseeing tour! Very kind person 👍🏼

Aufenthalt auf der Terasse zum Mittagessen war sehr angenehm, Bedienung sehr freundlich und das Essen ohne Tadel. DANKE.

Danke für den schönen Abend! Wie immer war das Essen unglaublich gut und das Personal ist sehr aufmerksam und freundlich.

The Riesen Building Technology AG is a company with tradition and experience. We are your specialist for building technology. Here you will find personal and competent advice. The plumbing, heating, and roofing company Arthur Riesen AG was acquired by Daniel von Mühlenen in 2003 and transformed into Riesen Building Technology AG. Riesen Building Technology AG took over all 3 employees. Son Andres successfully completed his first apprenticeship as a roofer at LWB in Bern in 2006. After his apprenticeship in 2007 as a plumbing installer at Chapuis & Zürcher AG in Bern, he deepened his professional knowledge for another year. In 2010, Andres successfully obtained his 3rd Federal professional title as a heating specialist in building technology planning at Haustechnikplanung Abbühl in Spiez. To gain further professional experience, he also worked at Böhlen AG in Bern. In 2010, Andres joined the company at 40%. Since 2012, he has been acting as managing director. He is supported by his dedicated, long-standing plumbing and heating installers as well as a trained roofer. Our Services - Plumbing - Heating - Roofing - Lightning protection - Fireplace construction - Bathtub replacement - Solar - Enamel repairs We are happy to be your contact for work around your home. Customer satisfaction is of great importance to us. We guarantee this through quality, performance, and price. The building envelope has many requirements to fulfill. We are happy to assist you. From planning to complete execution. We are professionals with appropriate training. We don't leave our customers out in the rain.