Ok folks, your suggestions for a great a/c company were spot on.
How about a good plumber? The pressure regulator valve that goes to the house is stuck. I can't adjust my pressure down to 85 psi. Pressure to the house is at 125 psi. The largest regulator that home depot sells is 1" and it looks like I need 1 1/2" and I'm afraid only plumbers have access to these larger parts. Any suggestions would be great. I don't want to pay $500 to replace something that requires two pipe wrenches. My neighbor just paid that.