Les techniciens et les administratifs de la firme se sont employés à remettre le chauffage rapidement dans l'immeuble du 44C rue du Centre à St-Sulpice, avec gentillesse et rapidité. Merci à eux ainsi qu'aux personnes du bureau. Bonne fêtes de Noël et de fin d'année. J.-P. DAVID

Rapide et professionnelle, au top !

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.

Build your site offices, exhibition pavilions, commercial areas with containers. Fast, flexible, mobile, cost competitive. We offer advice in the definition of the project, a study of construction variants, as well as transport and assembly on site. Sale - rental - leasing. Use your container roofs to capture solar energy and reduce your energy consumption where you are. Choose our frame-mounted roofs designed to fit over your offices and shipping containers. Reduce the volume of incinerable waste by sorting on playgrounds, schools and public places. Choose the types of waste, number and capacity of the bins for these boxes made in Switzerland.

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.