Ackermann et Fils S.A., located in Denges in the canton of Vaud, Switzerland, is a company specializing in sanitary installations and heating systems. With more than 60 years of experience, the company supports private clients, municipalities, and professionals in the planning, installation, renovation, and maintenance of plumbing and heating installations. Its expertise covers drinking water networks, sanitary systems, heating solutions, and modern technical installations designed to ensure efficiency, durability, and comfort. Thanks to a skilled and reliable team, Ackermann et Fils S.A. delivers high-quality services and tailored technical advice for construction and renovation projects throughout the Vaud region.

We are highly active in the PHOTOVOLTAIC market in the TICINO region, where we operate with a physical location and a solid network of qualified suppliers and installers. We offer high-quality solar systems, guaranteeing efficiency, reliability and comprehensive support at every stage of the project. At the same time, we supply WINDOWS AND DOORS that offer excellent value for money and can meet all aesthetic and functional requirements, with customised solutions for every type of property. AS PROTECH is a leading innovator in renewable energy and high-performance building solutions. We specialize in designing and delivering cutting-edge photovoltaic systems, windows, and doors, operating as a general contractor to provide integrated, customized solutions for individuals, businesses, and public administrations. With a forward-thinking vision, AS PROTECH is committed not only to providing advanced technological solutions but also to fostering a culture of sustainability, actively contributing to building development and urban regeneration.

sehr professionell und kundenorientiert. Roger Bolli hat die Erneuerung unserer Wärmepumpe super koordiniert und umgesetzt. Wir würden Bolli Heizungen jederzeit wieder engagieren. Kurt und Victoria Brändli, Malans

I offer professional maintenance services for your heating system to ensure it runs efficiently and safely. Choose between a comprehensive maintenance contract (including spare parts) or a basic maintenance contract (excluding spare parts) tailored to your needs. My services include cleaning, inspection, and optimization of burners, gas boilers, and heating systems. With my 24-hour on-call service , I am always here for emergencies. Regular boiler descaling, emissions checks, and personalized reminders for scheduled maintenance are also part of my offering. Count on quality, dedication, and personal attention – for a worry-free home!