The powerful brands within the Winkelmann Building + Industry business unit stand for expertise, innovation and reliability. Our own research and development departments, complementary collaboration with well-known external research institutes, and the most up-to-date production processes and technologies ensure that our products for water-distribution heating, cooling and air-conditioning technology are always at the cutting edge and meet our aspiration of energy-efficient operation of the entire system.

Right now, with fossil fuels at a premium, we are taking our responsibility to help shape the success of the energy revolution even more seriously. We are very clear what we want to do here. Through our Energizing Water and Comfort initiative, we are focussing on energy efficiency, sustainability and comfort in water-distribution systems.

We are one of the leading providers of high-quality systems for heating and hot water supply technologies.
With our headquarters in Ahlen in the German region of Westphalia, we develop, produce and sell not only expansion vessels, but also innovative components and holistic solutions for pressure maintenance, make-up, degassing and water treatment, as well as hot water storage tanks and plate heat exchangers. The hydraulic distribution & storage components offered in our portfolio are supplied by our partner company Sinusverteiler which has been part of the Winkelmann Group since 2014 and has an active market presence alongside Reflex. 

Winkelmann is one of the world's leading Original Equipment Manufacturers (OEM) for water storage tanks, expansion vessels, drinking water vessels, separators and manifolds.

As part of the Winkelmann Building+Industry business unit in the Winkelmann Group, the Winkelmann brand represents the OEM business with components and systems for any type and size of building as well as an extremely wide range of industries and sectors.