Slide Your specialist in thermal applications for industrial processes About Callens

Big company, family values

Callens is a Belgian family firm, founded in 1966. In just over half a century we have grown into a much sought-after heating and air technology partner for the process engineering industry. With respect for and gratitude to the first generation, the second generation now stands at the helm of our friendly family business.

Delivering a quality that is top-notch, on schedule, backed by an energetic service organisation that is unique in our industry, is very much part of our DNA and allows us to provide our customers with what they expect from us: speed, reliability and certainty!

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Big enough to cope, small enough to care

Callens stands for trailblazing high-tech systems, with a focus on the economic and environmental interest and an unfailing concern for people’s well-being. The 200 members of the Callens family, our enthusiastic employees, are driven by the ambition to excel themselves and raise the bar ever higher. Under the motto ‘Big enough to cope, small enough to care’, they pride themselves on a great day’s work and on watching our position as market leader in the sector grow from strength to strength.