I have used trouble free exclusively for my heating and air conditioning. Midstate heating and air conditioning put the two units in for me years ago. Mark Carter has been the service person to come out and service the units last spring and this winter. He is very knowledgeable about what he is doing, plus pleasant and polite to deal with. Thank you for sending here to my home to work, look forward to seeing him again.
Richard E. Childress
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