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.

Lütolf Dach und Wand AG – Your Expert for Roof and Façade Work in Villmergen, Freiamt, Aargau, and Zurich For over 70 years, Lütolf Dach und Wand AG has been your reliable partner for high-quality building envelope services. As the regional leader in flat roof systems and building waterproofing , we offer customized and long-lasting solutions for new constructions , renovations , and refurbishments . Our expertise covers a wide range of services, including pitched roofs , green roofs , sheet metal work , façade construction , scaffolding , and solar energy systems . Founded in 1946 by Xaver Lütolf, the company stands for craftsmanship, quality, and reliability. With a deep understanding of modern and functional roof and façade requirements, we deliver solutions that meet the highest standards. Our flat roof systems ensure effective building waterproofing , protecting your property from weather damage while optimizing energy efficiency. In addition to traditional pitched roofs , we focus on sustainable solutions like green roofs , which are not only visually appealing but also ecologically valuable and energy-efficient. Our skilled craftsmen in sheet metal work provide precise and aesthetically pleasing metal roofing and façade elements, while our façade construction enhances your building's exterior with both protection and style. Another key area of our services is the installation of solar energy systems , allowing you to embrace environmentally friendly and future-oriented energy solutions. Through comprehensive consultation and expert installation, we ensure the optimal use of solar energy for your home or business. Whether for new construction projects , refurbishments , or renovations , Lütolf Dach und Wand AG offers top-quality craftsmanship and professional solutions across the Freiamt , Aargau , and Zurich regions. Rely on our decades of experience and in-depth knowledge to bring your building project to success. Contact us for a comprehensive consultation and benefit from our tailored services, designed to meet your specific needs.