Allan gave a precise quote, pamphlets, and explained the different sizes/efficiency of the estimated units.  The estimate sheet was clear and easy to understand.  John and Brandon installed the unit and were efficient and took pride in their work.  They respected the house and yard and made sure all was clean of any materials used and debris.  John and Brandon explained the new thermostat and made sure I was comfortable with programming it.  We sincerely appreciated the professionalism of all who we dealt with during our recent purchase and we will be sure to (and already have) recommended Airtech to anyone who asks regarding cooling/heating needs.  Thank you.