HVAC Mechanical were onsite to repair a Walk in Cooler (compressor) and a heater. Just over a week afterwards, the cooler failed completely. Josh from HVAC Mechanical was one again reluctant to come back out despite a 1 year warranty. Eventually showed up and said it would cost another $750.00. When I asked him why, he screamed and yelled at me for 3 minutes. Hung up, then yelled at our staff before being asked to leave. Recommend you avoid.