Consulting - Planning - Execution - Service We advise you on site and plan your heating system renovation according to the existing situation. Your wishes, the conditions on site and our technical and professional know-how flow into your project. After taking stock of the existing situation, we will work out the optimum solution for the renovation and renewal of your heating system. OilGasHeat pumpsSolarWoodBoiler renovations and new installationsRadiator installationFloor heating systemsBoiler installations and decalcification About us Business owner / heating installerAt Thomas Hänzi Heizungen+Reparaturen GmbH everything comes from one source. Thomas Hänzi carries out consulting and planning work on your premises or in his workshop in Herrliberg. As a heating installer/service technician, he is on the road for you, installing and repairing heating systems in all energy sectors. Office With the support of his wife, telephone and customer service are very important in the office area. Scheduling and coordinating upcoming work and appointments are just as much a part of her job as handling general and daily office tasks.