My geothermal is great
Four years ago, I had Donmar install an extensive geothermal heating/cooling system in my home. Nothing was easy as we live in an old farmhouse but Donmar overcame every obstacle to give us a wonderful system. When the few to-be-expected glitches occurred, their service was exceptional. Everyone I've spoken with in the company from the annual service guys to the head of the organization, Don, have been a delight. My wife and I can't give a high enough recommendation for this company.