We have been using Tiger Services/Air Alamo for more then 10 years now. Mike Dines (Sales) was very professional; he answered every question and recommended the replacement system that fit our need. Calm, thorough, and exceptional in every way. Joe and Jonathon (Installation) were beyond amazing. Removing and replacing the furnace and coil up two flights of stairs including the pull-down ladder access at the one end of the attic and maneuvering under and around the many obstacles into the far end of the attic in 100 degree weather is no easy feat. Everything was neat, clean, and professional. They explained what was to be done ahead of time, showed and described all the safety features of the new system, trained us how to program the touch screen thermostatnd then programmed it for us. When all was complete, Joe went through all the features of our new system, explained the registration and rebate process, and described the results of the testing they did on the new systemthat assured us we not only received a great product, but that the installation was safe and complete. Superb friendly attitudes, manners, professionalism, and work ethic.