Looking for an HVAC referral. We just found out our AC unit is not blowing cold and had a local expert take a look at it. We have an old R22 system and we were told our coils have a bunch of ice on them and the system is plugged. He tried blowing things out - didn't help - and told us since we have an old unit, he can't get replacement parts. So, per him, we need a new system to the tune of $3,800. He was a nice guy, and has good local reviews. I would just like to get a second opinion. So, anybody out there have a recommendation for a good, local AC company? Thanks