Groundwater & Soil Energy

Regardless of whether private or industrial construction projects, we use the right drainage solutions for each project. Being part of the Hölscher Group, we are among the leading experts in Europe when it comes to dry construction pits, groundwater treatment and environmentally friendly, efficient return drainage.

At Tjaden, we want to contribute to the transition to sustainable energy and scaling up soil energy. We have been active in this field for over thirty years.

Amid the growing need for sustainable heating and cooling, Aquathermy is one of the alternatives.

Aquathermy is the collective term for sustainable heating and cooling with water. It covers heat and cold from surface water (TEO), waste water (TEA) and drinking water (TED). Tjaden prides itself on being active in the TEO systems market for several years and can therefore relieve you of all your worries.

An extinguishing system is a stationary, automatic fire extinguishing system. It detects, monitors and combats an incipient fire. Typically, a sprinkler system extinguishes the fire before the fire department arrives.

Tjaden is a national and international drainage and drilling company with over a century of experience in groundwater techniques.