We had the typical experience of turning on the A/C for the first hot day of the year, and having no cold air. We called several companies, but found none that could get a technician out for another five days. Tried HVAC Unlimited, and they promised someone that day. Jermaine arrived, quickly diagnosed the issue, and did a great job explaining the problem to a lay person. Because he had been on multiple calls already that day, he didn't have a full tank of refrigerant, but installed what he had to get the house comfortable; he returned the next day to top off the system and to confirm that everything was operating properly. Jermaine was very professional, very informed, and spoke very highly of his company. Strongly recommended.