HVAC reviews in Plano, Texas

HIGHLY RECOMMEND CORNERSTONE. Outstanding professionally run organization. Owners are two very bright and savvy individuals who have not only world-class technical skills but also amazing customer service skills. No job is too small and conversely they have demonstrated they can tackle the big jobs too. Competitive and honest pricing. They don’t even try to sell you parts and/or services you don’t need unlike what is done by the HVAC companies seen on TV..

Clayton at Cornerstone did a wonderful job getting my air conditioning units clean, and up and running again. He was honest, and let me know that my main problem was the setting on the “smart thermostat” ecobee was not correct. He also did an excellent job explaining to me everything I needed to know about my 2 units, and their current working condition. In today’s world where big contractor companies dominate the market, it’s hard to find people that you can reliably trust to get quality work and honest work prices. I give this company my highest recommendation. I would suggest you give them a try.

Had a great experience with Cornerstone Air! They were friendly, upfront, and answered all of my questions thoroughly. Out of the 5 quotes I got their, pricing was very fair, and the quality of work was excellent. It’s always nice to support a local business that truly values great customer service. Highly recommend!

Cornerstone did and fantastic job. Very responsive and great delivery!

Clayton and his team were fantastic. Clayton took the time to thoughtfully listen to my questions and concerns, explain my options, and didn’t try to hard sell me on anything. On a day approaching 100 degrees, Clayton found a way to shuffle his calendar and replace my AC unit that same day. Clayton personally oversaw the work and went above and beyond to make sure I felt comfortable with everything before he left. And now I have a five year warranty on all labor, compared to the last place I used that gave me a 1-year warranty and then didn’t honor it.

We called Cornerstone on a Friday morning for a system check (22 year old units so we knew it was probably time to replace) and Clayton showed up within 2 hours. Clayton offered options for repairing the unit or replacing both of our units with estimates on both options. We opted for the replacement option, which they completed the next day at a fair price. We would recommend Cornerstone Air to our friends and family.

Dak Jones is an amazing air tech. He looked at our problem identified the issue and quickly fixed our drain problem on our unit. He was very conscious about the mess and cleaned everything up he could. He was very polite and courteous.There are not many companies that have employees like this in service. I definitely recommend Cornerstone Air and will be using them again.

Clayton from Cornerstone Air helped me with doing some small checks over the phone and gave me an appointment the next day to find a wire had shorted and he ran the extra long new wire and completed it quickly. Excellent work!

Cornerstone Air came to check the condition of my ac unit and I couldn’t be more happier with their service. Clayton was upfront and explained the process to me before he started any work. Once complete, he walked me through the condition of my unit and what services he performed. Their pricing was excellent and I would recommend them to anyone.

I had an excellent experience with Cornerstone Air. Clayton was fantastic—professional, knowledgeable, and very friendly. He quickly diagnosed the issue and fixed it, also providing me with some recommendations to help the unit run better. His attention to detail and commitment to customer satisfaction truly stood out. I would highly recommend them!

Clayton was great to work with. The team he had come out to replace our unit was top notch and was very fast. We really appreciate Clayton helping to get us cool again.

I had the best experience with Clayton Terry of Cornerstone Air today! Clayton was extremely responsive, even though
I reached out to him after hours last night. He got me on the calendar the following morning, and he gave me a heads-up as he was heading to my house. He was punctual, professional, very diligent, and engaging by explaining to me the steps he was taking to determine what was wrong with my AC Unit. I am happy and appreciative of the service that I received and the price point. I have now established my go-to company/person for all my future AC needs, and I can confidently recommend them based on my experience.

Thank You, Clayton (Cornerstone Air)!!!

Here’s a heartfelt and eye-catching five-star Google review for your Air Conditioner service:

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**Five Stars – Exceptional Service & Genuine Care!**

I cannot recommend Cornerstone enough! They came to service my business when I needed help the most, providing a simple and cost-effective solution that got us back up and running quickly. Later, when I needed assistance at my home, they delivered swift, accurate diagnostics and fair pricing—no surprises, just great service.

A special thank you to **Dak** for his outstanding customer service, clear explanations, and thoughtful guidance. He not only fixed the immediate issue but also helped me plan for preventative maintenance and future needs as my unit ages. It’s rare to find a company that truly cares about their customers and goes above and beyond. If you want reliable, honest, and professional HVAC service, look no further!

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Cornerstone Air is awesome! Dak is a great technician, honest and reliable! I highly recommend!

Great experience from start to finish. They were able to come out the same day to unclog my main AC drain line, which I really appreciated. The technician was friendly, knowledgeable, and explained everything clearly. The work was done quickly and the system is running perfectly again. Very satisfied with the service and highly recommend them.

Todd was great! He fixed a problem caused by another a/c company and he worked efficiently and explained what the problem was and he was going to fix it.
I can trust Todd to give me good service at a very reasonable price and I will recommend him to all my friends who need hvac work done.

We love Tood! We've been using him for 16 years.

He came the day my service failed. He fixed it and gave detailed instructions about part of the air conditioner drainage system. Very fair pricing. I have used this company for years in different homes.

Todd did great replacing our thermostat. Very professional and nice. I highly recommend. Todd we will call on you again for all our HVAC needs. 😊

Best hvac man ever!!!

Todd at Kool Koncepts was very responsive & provided excellent service. Will definitely use again & highly recommend!