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.

schnell, kompetent, freundlich. Man merkt, dass hier ein top ausgebildeter Handwerker seinen eigenen Traum verfolgt, selbst eine Firma mit gutem Ruf aufzubauen. Liebe zum Detail und trotzdem absolut effizient, freundlich und zuvorkommend. Weiter so, mit dieser Einstellung wird Eure Firma sicher gut wachsen und gedeihen!

von A-Z, perfekte Betreuung! Freundlich, pünktlich, qualitativ perfekte Arbeit

TSW Kummer Systemwände GmbH is your experienced partner for office planning, office fit-out, and modern workspace solutions in Switzerland . The company specializes in partition wall systems, glass partitions, room-in-room solutions, acoustic solutions, and flexible office design to create productive and efficient work environments. From individual office planning and office renovation to office expansion and complete office furnishing , TSW Kummer delivers tailored solutions for companies of all sizes. A strong focus is placed on acoustics, lighting, materials, and flexible space organization , ensuring modern workspaces that support both concentration and collaboration. The portfolio includes: • Partition walls & glass partitions (single and double glazing) • Sliding walls and modular wall systems • Work pods, phone booths, and meeting pods • Think tank and room-in-room solutions • Acoustic solutions such as ceiling baffles and wall panels • Office fit-out, renovation, and workspace optimization A key highlight is the showroom in Dübendorf (Zurich area) , where clients can experience innovative office and acoustic solutions firsthand. Visits are available by appointment and offer the opportunity to explore materials, systems, and concepts in a real environment. With extensive experience, high-quality standards, and personalized consulting, TSW Kummer supports businesses from concept to completion—creating modern, flexible, and future-ready workspaces.