AA Service replaced our aging air conditioning system on Friday. Mackay and the guys were awesome (like the rest of our experience with AA!). They had to get the ancient system out of our ATTIC, establish the new air handling in the attic, and replace the outdoor compressor. From beginning to end, everyone – designers, planners, installers were professional, polite, careful – even when at the end of a long day they needed to enable our new thermostat to do non-standard things. All went great!! I recommend this company to anyone and everyone! We used Carlson for 40 years; and then the merged with AA. Terrific service continues.