We are customers of Keith Key and have been sinced 2007. We have always received excellent service from this company and their prices are very fair. They installed a new unit for us this past summer and we had some problems with the initial installation of the new unit. Keith Key and his technicians found the issues and corrected them with utmost proficiency. I would highly recommend their services whether it be new installation, repairs or annual checks, as all of my dealings with this company have been above reproach. You will never find a company that is more honest and truly has their customers at heart.