Service Specialties Inc. came out to work on the heating and air conditioning system. Something wasn't right. I think they put freon in it. They might have made some other repair as well. The technicians were professional. They explained everything to us and they were very informative. I was happy that they fixed the problem. I thought the technicians from Service Specialties Inc. were trustworthy and just everything you would want in someone coming into your home to fix a major appliance. They did a great job and we're very happy. We've used for three years now and I'll continue to use Service Specialties Inc. in the future.