Recently, we were told that the compressor on our A/C unit had gone out. The unit is fairly new, but it was installed by the previous homeowners. It is a Trane, so my husband called Trane and they recommended Garrison and Garrison for our problem. They did agree to do the compressor replacement as a warranty job, which saved us a lot of money. So, I was pleased with that aspect of it. They also didn't charge me for an additional service call (once to confirm it was the compressor, the second to come and install it). Though we only paid $543, a full price replacement would have been $1800 and I would have gone with another company. I'm not sure if I can fully recommend these guys or not. The technician that came out was more than a bit condescending to me. They did do the work quickly and professionally, though.