Our company has been at your service since 1960! Member of SSE and CEFN (Chambre des Étancheurs Fribourgeois et Neuchâtelois) Training company Some references : EMS Vuisternens-devant-Romont, Ateliers de la Glâne in Romont, Police building in Granges-Paccot, "St-Léonard" basketball hall in Fribourg, Swisspor SA (administrative building) in Châtel-St-Denis, Drognens barracks, UCB Farchim in Bulle (administrative building), Cremo in Villars-sur-Glâne, HFR Fribourg and many others. Our fields of activity • Bituminous waterproofing • Synthetic waterproofing • Resin waterproofing • Thermal insulation • Resin shower waterproofing • Flat roofs with slabs • Green roofs • Self-protected roofs • Renovation of balconies, flat roofs and terraces • Tinsmithing • Roofing We are also at your service for • Studies and estimates without obligation • Expertise • Maintenance of your roofs • Calculation of the CECB thermal balance

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.

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