Excellent service. Prompt (10 min early). Dave is VERY courteous, considerate gentleman. Sang the praises of his company, shared about ongoing training they receive. Very excited about his position and ability to help when & where needed. Explained to me what had happened and what he was doing. Felt VERY comfortable having him in my home. Office personnel are open, friendly, courteous, prompt. Excellent company and stand WELL above "normal" standards in today's world. I sing the praises of Core Air and wish them many blessings and much prosperity in their personal and business endeavors.