Designing your boiler room, installing your steam, thermal oil, hot water or central heating boiler, organising the heat transport to your users via pipes... we bring your production process or plant to the right temperature.
Our team of concept and sales engineers, project managers, project leaders and draughtsmen invariably manage to come up with the ideal technical solution for your heating needs or issues and are always happy to work it out for you in detail. On the basis thereof, you will receive a competitive quotation.
Our technology engineers keep a watchful eye on the technical standards and a keen eye on any innovations our R&D department comes up with.
Our skilled, experienced pipefitters, installers, welders and electricians see to the qualitative and timely installation of your system.
Our commissioning engineers, for their part, ensure your system is commissioned and set correctly, and for its visualisation. Our 125-strong crew enables us to complete the most complex, time-critical projects, to your satisfaction.
Thermal system servicing
Technical problem or scheduled maintenance?
Our team of 21 skilled service engineers and burner technicians and 12 highly-trained maintenance technicians are at your beck and call seven days a week, 24 hours a day. Add to that our large stock of spare parts and its little wonder that you'll find a Callens team knocking at your door within 2 hours of your call, anywhere in Belgium.
We are proud to be able to offer you the most secure and reliable service in our sector.
Working with Callens stands for... strength, reliability and safety!
Personal approach to customers and staff
In-house engineering department, staffed by experienced engineers
We’re happy to deploy our warmth and precision for a higher purpose: universitary research on better and more sustainable vegetables and potatoes. A brand new Viessmann steam boiler is giving the best of itself on the testing ground and delivers 1 ton of steam per hour to support the experiments carried out.
Does the name Berloumi ring a bell? The famous grilling cheese is made with Belgian milk in a Belgian cheese factory, just like three other artisanal cheeses of the house. We added some Belgian steam to the recipe.
Potatoes are not the only ones in a potato factory who require steam in the process. The cleaning and central heating systems require on the power of steam too. This loyal customer counted on our expertise to upgrade his furnace room to the next level.
The customer’s installation was about to draw his last breath. In cooperation with our colleagues from CallensVyncke, we build a flawless and high-performing steam installation with a HRSG and backup boiler.
This grower and manufacturer of potatoes is one of Callens’ loyal customers since years. His potatoes are being peeled perfectly, day and night, with steam produced by Callens. Now, we’ve added a thermal oil boiler to the furnace room to support the extra production capacity.
Via this logistic service company tons of feeds, chemical substances and other goods travel from A to B. Our steam appears when the transport tanks are up for thorough cleaning at the end of their duty.