Delta T Kälte

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We had a new air conditioning system installed in our offices. We can wholeheartedly recommend Delta T. From the initial contact, the site visit, the quote, the work carried out over several days, to the final invoice, they were simply incredibly friendly and professional. The employees who carried out the work on-site were very careful, clean, and minimally disruptive, allowing us to maintain customer traffic. The price-performance ratio is also excellent. Five stars all around!

From the initial contact with the managing director to the completion of the work and the invoicing, everything was top-notch! The managing director patiently answered our many questions comprehensively and clearly. The installers not only worked diligently and cleanly, performing everything professionally, but were also incredibly kind and friendly. Our special requests were fully met. The price-performance ratio was more than fair, even compared to competitors. We can wholeheartedly recommend GKK.

Friendly, reliable, and competent professionals for air conditioning and refrigeration systems Mr. Klafack and his team at GKK Berlin GmbH are friendly, competent, and absolutely solution-oriented experts with a strong sense of professionalism! Service and maintenance are also reliable and seamless. We would gladly use their services again anytime!

Great company and specialists in the refrigeration sector! The managing director, Mr. Klafack, is a very pleasant business partner. I'm already looking forward to our next joint project.