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.

Independent specialist for electrical inspections and safety testing in accordance with Swiss regulations (NIV). Services include acceptance and periodic inspections, safety certificates, precise measurements and clear inspection reports. Electrical installations in residential, commercial and industrial buildings are tested using modern equipment and expert know-how. Neutral, reliable and fully compliant with standards – ensuring maximum safety for people, property and fire protection. A trusted partner for property owners, facility managers, companies and construction projects.