Be very careful of using this firm. My experience.
The contract, or receipt if you will, says that there is a one year warranty on parts and labor. I had Climate Pro come to perform maintainance on my systems this week and the technician indicated that the part that Shamrock Heating and Cooling installed in my sysem in August 2012 was not working correctly, and needs to be replaced. I am advised that the replacement will be very expensive.
As their contract provides a one year warranty, I contacted Shamrock to arrange for repair. I was told that because the original service was provided pursuant to a whole house warranty through 2-10 Home Buyers Warranty the provisions of Shamrocks warranty do not apply. Funny their contract does not inform you of that.
They choose to ignore their contract language and, therefore, I consider them not reputable.