Best 30 Air Conditioning Contractors Systems in Concord, CA with Reviews -
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By: Toni C.
One Hour Heating & Air Conditioning
Ron visited me this morning and I am pleased to comment on how professional this company is!They always call to let you know the technician is on their way, they always are courteous when they enter your door. Mostly they are very knowledgeable about what they do and I appreciate that very much!

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