I am never impressed when whimpy A/C guys won't do anything outside of their comfort zone. When I did HVAC I would do what ever my customer asked me to do. Fix a heater or a garage door. Take a snake out of the pool or replace a light bulb that was way too high even for a 30 foot ladder. They were my customers and I tried to take care of them. There are many great stand up A/C and heating guys in the Chicago area. What brand of heat pump do you have? I will ask the manufacturer for someone that they like first so you don't have to go through any more hassle of finding the right guy.