Dönni Solar & Bau provides customized solar solutions for residential and commercial clients. From consultation and planning to the installation of photovoltaic systems, we focus on sustainable energy and top-quality service. Our expertise includes roof renovation, building technology, and energy efficiency solutions. Benefit from eco-friendly solar power and optimize your energy costs. With cutting-edge technology and years of experience, we help you transition to renewable energy.

For over 90 years, WEBER AG in Amriswil has been your trusted regional expert for roofs, facades and solar installations. Whether flat or pitched roofs, roof greening, façade renovation or photovoltaic systems – we deliver tailor-made and sustainable solutions. As a certified member of Swissolar and the Building Envelope Association, we combine craftsmanship, efficiency and modern design. Quality and reliability from consultation to installation – all from one source.

Kompetente, ehrliche Beratung, Offerte war klar und für Laien nachvollziehbar, einziger mir bekannter Anbieter, der wirklich alles aus einer Hand liefert!

Die Mitarbeitenden der JGE arbeiten nicht nur hochprofessionell sondern sie erklären auch für Laien verständlich was sei anbieten und tun. Auch sehr freundlich und jederzeit erreichbar. Aufgrund der Super-Arbeit haben wir JGE auch gleich die Renovation des Badezimmers in Auftrag gegeben. Alles Top und gerne wieder.

For over a year, RUTECH GmbH has been delivering innovative and sustainable solar technology solutions throughout Switzerland. We design, install, and maintain customized photovoltaic systems for both private homes and businesses. Our mission: helping you gain energy independence through clean, renewable power. Rely on high-quality service, honest advice, and cutting-edge Swiss technology.