Trusted. Reliable. Experienced.

As an essential service company, C&S Air is doing everything possible to keep you and your loved ones safe. We are currently offering contactless service calls and video estimates are available. Give us a call should you need us for anything.

Trusted. Reliable. Experienced.

5 Star Heating & Cooling


C&S Air Incorporated



C & S team

C&S Air, Inc., is a local HVAC company that works on both small and large heating, air conditioning, and Indoor Air Quality jobs for homes and businesses in Mansfield, TX and surrounding communities.

We take pride in providing skilled HVAC work and superior customer support to all customers. Over the years, we have established a massive and loyal customer base by delivering friendly, informative, and attentive customer service.

We believe that a good company won’t pressure you into buying products or services that you don’t need. What we do is tell you what you need, give you valuable options, and explain each of the options you have for wise decision-making. We provide comfort solutions tailored to your needs and budget.  


Derek & Jennifer Okeefe, owners of C&S Air, have been married since 1997 and started the business in 2005. Derek has been in the HVAC industry since 1996 and since then, his goal was to offer top-notch service with experienced, honest, and reliable employees to all customers. Derek knew that college was not for him, so he put himself through a local HVAC school and realized this was his calling.

The name of our company was taken from the initials of our 2 lovely daughters, Courtney and Shelby which represent everything positive that we want for the company. As a locally-owned family business, we wanted to maintain our company values of honesty, reliability, and quality service.


A well-functioning HVAC system plays a vital role in maintaining a comfortable indoor environment. This is why having a reliable team of heating, cooling, and IAQ experts to install, repair, and maintain your comfort system is very important.

At C&S Air, we employ only skilled and qualified technicians to ensure you are getting the professional service that you deserve. We are trusted by a long list of customers because we do honest work and can work within the budget.

In every job we handle, we put constant emphasis on 100% satisfaction and consistent comfort for all customers all year round. Our team provides comprehensive evaluations and in-depth system analysis, so you’re fully educated on the problem. We’re here to help every step of the way.


With C&S Air, Inc., you’re guaranteed all-day comfort throughout the year. Our team is trained, skilled, and experienced to deal with your comfort woes in the summer and winter.

Whether you want an upgrade or complete system maintenance, you can count on our experts to work on it. We always help in times of need—just give us a ring at (817) 783-9848.