Tier 1 Heating and Air did a really nice job in helping us in terms of answering our questions we had about things that needed fixing. We bought our house in 2010, and they were kind enough to help us install heat and air. They were very responsible and explained really well what they were doing and were very professional and efficient in how they used their time. All of their staff members were very knowledgeable at their craft and with the work they're doing. If we needed them again, we'd definitely use them!