Had Collins come to my house to perform Spring Checkup on two units. Technician did nothing except tell us how everything was wrong and we needed to buy all new stuff. "Wasnt blowing cold enough, has to be the compressor. You need a new unit. " "3 out of 4 capassitors are bad and needs replaced @ $180 each" There was no evidence given or readings shown to prove they were bad. These are $20 parts. Told us we needed 1 pound of Freon, ended up putting in 3 lbs but never found or searched for a leak? Did no preventative maintenence on the system. Did not spray down the coils or anything. Just came in and did diagnostic work and tried to upsell everything. Extremely dissapointing and now we have to get someone else to come in who will actually perform the work we hired Collins to do.