This company is awesome. Not only did they come the same day as my call, they were compassionate about my plight. I had tenants completely without air (only one unit), of which one is diabetic and another is diabetic and elderly! It was my third day of having no air for the apartment. My tenants were staying in a hotel at my expense until it was fixed. I have a warranty company and that is who I started with when my tenants called. They sent a company that did not have good reviews; for good reason! Anyway, long story short, I gave up on that company and went out of pocket to Black Mountain Air. They were ON TIME, and prices were extremely reasonable. They truly wanted to identify the problem and fix it correctly without stacking charges. So, when your air goes out and you have a warranty company, save yourself time and aggravation by calling Black Mountain Air first!