Serving Plano & Surrounding Areas!
Our Story: Built on Small-Town Values
Founded by Dak Jones and Clayton Terry, two friends from small towns with strong convictions, the Cornerstone Air story is about hard work, honesty, and a commitment to the McKinney community.
Dak grew up in Collinsville, and Clayton hails from Leonard – two Texas towns where a handshake still means something, and folks look out for one another. These roots run deep in everything we do.
From Technicians to Trusted Business Owners
After starting out as HVAC technicians nearly a decade ago, Dak and Clayton quickly realized that their shared dedication to quality service and customer care set them apart in an industry often driven by quick fixes and sales pitches. They knew there was a better way to combine old-school “tradesmen” craftsmanship with the efficiency of modern technology.
Thus, Cornerstone Air was born. Our primary goal has always been to bring those small-town values to every home and business we serve in the McKinney area. We’re proud of our 22 years of combined experience, but we’re most proud of the trust we’ve built with our customers. When you call us, you’re not just getting a service – you’re getting a team that treats you like family.
Cornerstone was an absolutely fantastic experience!! Clayton was very professional, knowledgeable, detailed and provided outstanding service to our home. Requesting an appointment for maintenance and had us taken care of! Quality staff, quality service and affordable prices!! 10 out of 10 and will be a lifetime customer!
Julie Mallett
We had such a great experience with Cornerstone Air today! We had the opportunity to meet Dak Jones, the founder. He was very friendly, professional, on time and thorough. We also admired the fact that he was very honest with us. We are in the process of selling our home in Frisco and we just wanted to have a peace of mind that everything was operating properly and Dak definitely put our minds at ease! We will definitely use Cornerstone Air again for our new home! Thank you Dak and to his team!
Y J
Clayton and Dak helped me out big time! Had a condensation problem and they showed up and got me fixed up in a very quick time frame!
Chase & Samantha Mullino
Clayton and the team at Cornerstone Air did a tremendous job for us when one of our old AC units froze up and was leaking. Clayton came out the same day and assessed the situation. Although the news wasn’t great, and we were going to need a new unit, he took the time to explain and provide options and recommendations.
Craig Scoggins
Clayton and his team were great. We had a 20 year old system go out and they were able to get a new system installed the next day in the middle of summer. Fair on price and great service. Highly recommend.
Brad Robinson
Have never had such a quick response in service and taking great care of the A/C issue. Clayton T. was great to work with on this call. Their service is top notch and experience is as well.
Randle Jones
Our Mission: Honest Work, Real Results
At Cornerstone Air, we keep it simple: we show up when we say we will, we do the job right, and we don’t cut corners. We rely on American Standard equipment and parts because we know they work as hard as we do. And while we embrace today’s technology to make our services faster and more efficient, we’ll never lose sight of the personal touch at the heart of our business.
We want you to feel confident that when you choose Cornerstone Air, you’re choosing a company that values your trust. We’re here to keep your home comfortable, no matter the season, with the kind of service that makes you glad you called. That’s our promise – from our family to yours.
