I ask HIL-CO AC for an estimate on a 19 years old split unit replacement,they send a guy to take a look at the unit at the house and he give us the prices for the replacement,they were good, the only thing I do not like was the way he said he do not care what other contractors said about the installation,he does the things the way he liked,do not give me wrong,I never said nothing questioning the way he was going to install the unit.