Smart buildings - intelligent, user-friendly and energy-efficient buildings. Since our foundation in 1872, we, Louis Opländer Heizungs- und Klimatechnik GmbH, have been successfully making our customers' buildings more comfortable, cozy, efficient and therefore increasingly smarter. Modern system technology paired with the latest installation methods and the use of intelligent building and system automation is one of our core competencies. With around 100 employees and an annual output of around EUR 20 million, we are a leading company in technical building equipment in the greater Dortmund area, making us one of the larger providers in Germany.