I have used them for several years for my AC and heating service. This year the technician removed the surge protectors on both my units saying they were both defective, then suggested that I install 2 new surge protectors. In looking through my records I noticed that both surge protectors Had been installed 2 years earlier on their advice at a cost of almost $300. I called the office to ask questions about the circumstances and was told I would be called back, but never received a call back. This has left me questioning their reliability.
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