We had a great experience with Sierra Mechanical. We were referred to them by our home warranty company on a Friday afternoon. They were able to come out within four hours and fixed our unit. The A/C ended up having another problem (not related to the first) overnight. I called them first thing on Saturday morning and they came out that afternoon. It is completely fixed and working better than ever. I recommend this company for their office customer service and repairman customer service.
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