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.

Thur Haustechnik AG delivers modern plumbing, heating and ventilation solutions in the Frauenfeld region. The company provides planning, installation and maintenance for new builds and renovations. From bathroom design to heat pumps and controlled ventilation, clients benefit from reliable systems, precise workmanship and long-lasting energy efficiency. A trusted partner for water, heat and indoor air quality.