I've worked with One Hour Heating & Air Conditioning, before, at the office, and I hired them, most recently, to fix the heater within my home. Currently, we're still waiting for the heat exchanger that was ordered, to arrive, so the repair can be complete. Up to this point, they've been wonderful. They're easy to schedule work with and prompt in their arrival. They're a professional company with competent workers and everyone we've interacted with has been polite and communicaitve, clearly explaining what's happening with, and what's needed for, the unit they're working on. I'm confident the heat exchanger will arrive, on time, and the installation is likely to go as perfectly as every other job we've hired them for. Very warm feelings about this company, and I'd definitely recommend them to others.