This Air Conditioner Repair Altamonte Springs FL (Going in Derunn) process is as easy as sealing leaks with mastic or using scrap sheet metal, mastic, and some self-tapping screws to seal larger holes. The faster the fan runs, the louder it will be. I agree whole heartedly with you.
Be sure to turn the water and humidistat off before servicing. Almost nobody will touch a system you sourced yourself. Another possibility is that is not moving enough air across the cooling coil.
Its more expensive, but with the installer be so important I would rather payout more to get it right the first time then deal with the headaches later.