I contacted Texas Central Air, in the evening, when my A/C stopped working and someone was out the next morning. The company is professional and friendly, with extremely reasonable pricing for either repairs or new equipment. I like the fact that they try to fix what you have first before trying to replace it (unlike most other companies). Having an 11 year old unit, we eventually needed it replaced. We had several estimates and saved $5000.00 by using Texas Central Air vs. JM's (company's initials) best offer for a smaller unit with less energy efficiency. Using Texas Central Air will give you more for your money at a lower price with excellent customer service. I highly recommend them if you are in need of A/C service - HONEST AND FAST SERVICE.