Gave it 5 stars because I am not sure what they could have done any better. First, their price for "summerizing" my system was $10-$20 less than their competition. Second, Mark was extremely knowledgeable and explained everything to me. He gave me options, not scare tactics. I felt I could trust him. He didn't smell like cigarettes. Clean, professional, courteous, knowledgeable. I will use these guys again.
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