Had another company come and tell me I needed a new system and quoted me a price over 6 thousands dollars. Called efficiency for a second prove to compare, talked to Bob who while he was happy to Price out a new system install, encouraged me to have his repair staff come take a look first.. Figured for the price of a service call it was worth a shot. Guy called first like they said he would, showed up exactly when he said he would, got right at it.. Within 20 minutes had my system up and working with 2 new parts. Less than 400.00 instead of thousands!. I don't know if they are the cheapest out there but they are honest. Instead of selling me a whole new system, they sold me only what it took to do the job right. They earned my business. Thanks Bob- Ryan