Same Day Appointments Often Available in Collin County, TX


Chad has been in the HV/AC business for 20+ years.   Chad started his HV/AC career in high-school and continued to technical college.  He received his Texas State HV/AC license at the age of 21.  Chad believed in honest and reliable service. We are a family owned business and take pride in personalizing service to build a strong lasting relationship with our customers. Chad believes in building the relationship and reputation with respectable, friendly, reliable, and affordable services to his customers. Chad requires all his employees to be EPA certified and registered with the state.  

Chad believes in giving back to the community.  You may see C.A.S Air Conditioning & Heating, LLC in local school supporting a book drive, fun run, or school event. C.A.S Air Conditioning & Heating, LLC also gives to local holiday bike drive each year.  

We offer all services from servicing and repair of all makes and models of  HV/AC units in your home, for residential and commercial customers. We service these areas in Texas: Frisco, Allen, McKinney, Plano, Prosper, and surrounding cities!

If you have a question or concern about your AC system, contact C.A.S Air Conditioning & Heating, LLC, Prosper, Texas, the complete care providers for air conditioning services.


Hear From Our Happy Customers

At C.A.S Air Conditioning & Heating, LLC, your satisfaction is our priority! See for yourself what our customers have to say about working with us.

  • "Timely and Professional"

    Owner, Chad Sheffield recommended the American Standard brand for the replacement of my 13-year-old A/C & Heat system. The crew was on time, professional, and had my home cooling in half a day. Best of all, I am saving 35% less on electricity!

    - Mary R.
  • "Very Professional"

    We called C.A.S air and heating and they came out not only the same day, but within a couple of hours. In minutes he had the problem diagnosed and had us back up and running. I cannot say enough about the professionalism of Chad. I would highly recommend!

    - Mike A.
  • "Prompt and Reasonable"

    I had an urgent need for an HVAC specialist to come an assess an HVAC system on a home. He responded immediately. Very personable, thorough in his evaluation, and took time to answer my long list of questions. I would recommend him to anyone.

    - Andrew Z.

Why Choose C.A.S Air Conditioning & Heating, LLC?

  • Extensive Experience Since 2002
  • Honesty Above All Else
  • Straightforward Approach
  • Customer Satisfaction Guaranteed
  • Locally Owned & Operated
  • Family-Owned & Operated

Contact C.A.S Air Conditioning & Heating, LLC Today!

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