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Our experience with Pro-Tec refrigeration was terrible. We hired them to fix a commercial freezer, that was operating, but wouldn't reach sub-zero temps. After their tech worked on it, the unit would no longer reach temps below the high 30's rendering it completely unusable. I contacted the office the next day (Sat.) and was promised that a technician would be at our place of business first thing Tuesday morning. No one showed up and we have been unable to get a return call. However, Pro Tec did charge our credit card over $1200. We were never given an invoice, any supporting docs or shown any old parts. I called another company and their tech was out the following day and completed the original repair, but also repaired the damage apparently caused by the Pro Tec (which is why it would no longer reach freezing temps after his 'repair'). I understand that people make mistakes, but Pro-Tec's complete lack of customer support and follow through, after the sale, is completely inexcusable in my book.