We belong amongst leading manufacturers of rotary heat exchangers. Our heat exchangers excel in state-of-the-art technology, premium quality and high efficient transfer of heat and humidity.

Within the scope of complete assemblies, our company is mainly focused on complex deliveries of air handling and air conditioning systems, including the related professions such as cooling of machinery, central heating, measurement and regulation. 

Our service team provides services to all types of RHE with the aim to assure their maximum service life. We also provide services to all HVAC systems and installations.

Our design department not only provide a professional technical background for projects realized by our company, but also acts as the partner at preparation of complete project documentation directly for investors.


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KASTT, spol. s r.o. is a technical company of the Czech origin that has been operating in the domestic as well as European markets since 1990. Since its very beginning the company has gradually become a renowned manufacturer of exchangers for heat recovery and a reliable supplier of air handling and air conditioning systems. Since 2004 the company has been a member of the globally present Vinci Energies Group.

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For 30 years, you have been giving us the strength to grow
Our company was founded in Hradec Králové in 1991 and since then we have become one of the leading manufacturers of heat recovery exchangers and at the same time a reliable supplier of ventilation and air conditioning equipment, incl. their design and subsequent service. We have experienced a lot together during these three decades and we would