We design borehole heat exchanger field plans for buildings that are using geothermal heat pump systems, as well as obtaining the necessary permits from the mining authorities. Our company carries out the required measurements with the most up-to-date testing device developed by a group of geologists and engineers as a result of 20 years of research, which is manufactured in Germany. The testing device determines the borehole thermal resistance, the thermal conductivity and initial temperature of the ground. These are the key parameters needed to accurately design the borehole heat exchanger field.