We completed a difficult renovation of a home built ca.1804. The boiler system that had been added a century later was terribly expensive to upkeep and inefficient. Enter Allgeier to save the day. They installed a geothermal system that proves itself environmentally friendly and enables us to heat and cool a complicated elevation plan. While working out the bugs that typically occur Allgeier responded quickly with the arrival of knowledgeable and professional personnel and continues to do so eight years and counting. During seasonal maintenance, problems may be found but are corrected. Off season needs are responded to in a timely manner. We highly recommend Allgeier.