I would not recommend Quality Refrigeration Services because when I called, I was told that it would cost me a certain amount to come and diagnose the problem with my furnace and after they were done they said that it was going to be a different price because they ended up having to put in some nitrogen in the system, but never said to me that they were going to charge me extra until after they had done the work.
Then I was also supposed to received a quote but I never heard from them again.
The technician was very friendly and very thorough so he did a good job, but the service overall was not good considering that they charged me for something I did not agree to.