Serving Plano & Surrounding Areas!
Cornerstone Air: Your Trusted Partner in HVAC Repair & Service
At Cornerstone Air, we’re more than just a heating and cooling company – we’re your neighbors, rooted in the small-town values that define this community. As a leading HVAC company in Plano, TX, we provide reliable heating and cooling services for homeowners and businesses throughout the area.
Founded by Dak Jones and Clayton Terry, Cornerstone Air is proud to deliver honest, high-quality residential HVAC service with the kind of craftsmanship and integrity you expect from folks who know what it means to do a job right.
With over 20 years of combined experience, we’ve been serving the Plano area and beyond, focusing on keeping our customers comfortable year-round. With over 20 years of combined experience, we’ve been serving the Plano area and beyond, focusing on keeping our customers comfortable year-round. We are a HVAC company and provide residential HVAC repair and installation services for offices, retail stores, and restaurants. Whether you need a repair, a new installation, or routine maintenance, you can count on us to be there when you need us.
Why Choose Our HVAC Service Contractor in Plano
As an HVAC company in Prosper and Plano, TX, Cornerstone Air puts clear pricing first. We don’t believe in gimmicks or flashy sales tactics – just straightforward service, quality parts, and equipment that gets the job done right. We’re proud to rely on American Standard, known for its durable and energy-efficient systems, made right here in Texas.
At Cornerstone Air, we blend the reliable service you’d expect from a small-town business with the latest technology for faster, more efficient solutions. We’re committed to being there for you with prompt, professional service, offering a 24-hour response time because we know HVAC issues don’t always wait for business hours.
As an AC installation company in Prosper, TX, we replace aging units with efficient systems. Our air conditioning repair and maintenance service keep newer homes cooling at full capacity. Our experienced HVAC contractors in Plano, TX are dedicated to providing dependable service, ensuring every system is installed and maintained with care. Our HVAC installation services include load calculations, correct equipment sizing, and a full ductwork check.
When you choose us, you’re choosing a company that values trust, integrity, and doing what’s suitable for our customers. We look forward to earning your trust and keeping your home comfortable, no matter the season.
Promotions
We’re proud to serve the Plano community with honest service and great value. Ask about our current deals on maintenance, repairs, and new system installations!
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
Built on American Quality You Can Trust
At Cornerstone Air, we believe in delivering comfort that lasts. As a heating repair services company in Plano, TX, we fix furnaces, heat pumps, and ignition problems before winter cold fronts arrive. We deliver complete air conditioning repair, installation, and maintenance services, including seasonal tune-ups that prepare systems for triple-digit summers. That’s why we proudly install and service American Standard heating and cooling systems — known nationwide for their durability, reliability, and energy efficiency.
Reliability
You can always depend on the reliability of American Standard. Since 1881, we have built systems that deliver quality heating and cooling during your family’s most precious moments.
Sustainability
American Standard creates smarter solutions that improve the lives of our customers and our environment. Our sustainable heating & cooling products help reduce our energy footprint.
Comfort
Our goal is to create the perfect heating and cooling system for your family. We evaluate your home and design a system that best fits your needs, as well as one that fits your budget.
Air Quality
American Standard’s line of indoor air quality solutions help keep your air cleaner and fresher. We offer plenty of options to improve your air quality from humidity and harmful allergens.
Flexible Financing Options
Managing the cost of a new HVAC system or a major repair should never stand in the way of keeping your home safe and comfortable. Our financing options provide a straightforward, affordable way to move forward with the services you need, without the stress of large upfront payments. Cornerstone Air partners with trusted financing providers to offer flexible plans, fast approvals, and transparent terms, giving homeowners the ability to make smart, budget-friendly decisions with confidence.
troubleshoot at home
If your HVAC system isn’t performing the way it should, our Symptom Checker helps you quickly identify common issues before scheduling a service call. From unexplained noises and inconsistent temperatures to rising energy bills, this tool guides you through simple at-home checks that can prevent unnecessary downtime. When the problem requires a professional, you’ll know exactly what to expect and can connect with Cornerstone Air for fast, reliable support.
service area
At Cornerstone Air, we’re proud to bring small-town values and big-time expertise to homes and businesses across Plano, Texas, and the surrounding communities. Our service area covers a wide range of nearby neighborhoods, allowing customers across North Texas to access trusted HVAC support.