For over 50 years, Ray SA has been supporting its clients in the design and construction of building envelopes in Switzerland. Thanks to our proven expertise and mastery of the latest technologies, we deliver tailor-made solutions that combine performance, aesthetics, and durability. With offices in Givisiez (FR) and Eysins (VD), our company brings together around 90 qualified specialists in façade and roofing systems. We work closely with architects, general contractors, developers, and project owners to ensure the successful delivery of construction and renovation projects of all sizes. From design to execution, Ray SA supports you at every stage with a full range of services: technical consulting, planning, development of customized solutions, and optimization of technical concepts. Our expertise Ventilated façades Ventilated roofing systems Cold storage constructions Complete building envelope solutions Thanks to our know-how, we work with a wide range of materials such as metal, wood, composite panels, fiber cement boards, high-pressure laminates, sandwich panels, polycarbonate, natural stone, ceramic, and terracotta.

Von der Offerte bis zur Übergabe hat alles bestens geklappt. Die Anlage läuft einwandfrei und wir würden die Firma jederzeit weiterempfehlen.

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.