Finding HVAC Techs

[Kent Harris]

Recently I had an evaporator coil go out in a 3 ton Goodman AC unit. The total cost for parts and labor were $2,200! When I found out the price for the evaporator coil was $438 I paid the HVAC Tech and no longer give him jobs. My Maintenance people said they could replace an evaporator coil except they do not have the vacuum equipment for the Freon. The same HVAC Tech did a bid on a rehab and told me it would be $10,000 to install a new 3 ton outdoor unit, indoor unit, gas furnace and duct work. I looked online and I can purchase the 3 piece Goodman set for $1,700! How do I go about finding an HVAC Tech that will not gouge me on pricing? $10,000 would be half of my rehab budget on this house!