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.

As a holistic partner for all concerns and construction projects relating to building technology, we implement high-quality and optimized solutions in accordance with the wishes and goals of our customers. From simple heating system replacements to solar systems to complex installations, we are happy to assist you. Our solutions in the areas of heating, ventilation, air conditioning and solar collectors / photovoltaics are created in close cooperation with our sister companies (planning & engineering - s3 GmbH , execution - HSH AG ) and in constant contact with the client. This enables us to accompany you from decision-making through installation to system optimization and maintenance. Our transparent approach creates systems that are not only sustainable, but also mesh seamlessly and are in harmony with the needs of the users and residents of the building.

Ambiente famigliare nella totale professionalità. Consulenza sincera e servizio a domicilio competenza e umanità. Complimenti.

Die Beratung im Fachgeschäft ist super :)

Our family business is active in the Albula region and surrounding areas, such as Lenzerheide and Bergün, in the planning, design, and maintenance of building envelopes. We specialize in the professional execution of work on pitched roofs, flat roofs, and lightning protection systems. Thanks to our comprehensive expertise in plumbing and roofing, we can develop a holistic solution for the building envelope – from the substructure to completion. If our building envelope services have caught your interest, we would be pleased to hear from you. We are happy to be at your disposal and personally address your needs.