Non experienced service technicians at this Mechanical Air Company
The first cleaning was bad he didn’t clean the coils or clean the coil. Also they didn’t put enough returns in the house. Only one return at the air handler. Also they didn’t put the supply by the windows and doors which causes condensation during winter. Overall i give them a 3 out 5. If I buy a new air conditioning system, it will be a Daikin. Carrier is crap.