About Our Company

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.

  • Dak Jones, co-founder of Cornerstone Air
  • Clayton Terry, co-founder of Cornerstone Air

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 20 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 Air, a local HVAC service company in McKinney, TX, ready to serve the community with quality AC service & repair

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.