Customers consistently praise Cornerstone Air for their exceptional service, professionalism, and honesty. Technicians are knowledgeable, responsive, and take the time to explain options and solutions clearly. The company is quick to respond to emergencies and provides fair pricing. Many customers appreciate the lack of upselling and the company's commitment to customer satisfaction.
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Create a Free Account"Customers consistently praise Cornerstone Air for their exceptional service, professionalism, and honesty. Technicians are knowledgeable, responsive, and take the time to explain options and solutions clearly. The company is quick to respond to emergencies and provides fair pricing. Many customers appreciate the lack of upselling and the company's commitment to customer satisfaction."
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Last updated 7/4/2026
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"Very shoddy. One of their techs was checking the pressures on my condenser and loosened the schrader valve. All of my refrigerant was released. They wouldn't replace it unless I paid for it. Their negligence was…"
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Create a Free Account"Everything was quick and professional. He explained everything clearly and was very helpful. Response time from our call to having our AC working again was only a couple of hours"
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Create a Free Account"Fantastic service!! Our A/C went out in the middle of a heat wave...heat index over 100F! We called Cornerstone Air and requested an emergency call from their answering service. Clayton called us back within minutes…"
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Create a Free AccountHeating & Air Conditioning/HVAC in Plano · All Plano categories · How Mike's List ranks businesses
