About Us

Greenhill National Services is a national leader in the installation and service of commercial HVAC and Building Automation Systems. Our company began in 1983 as Greenhill Air, an air conditioning and heating dealership in Crowley, Texas. Over the course of our existence, we have successfully produced many long term relationships with our customers, which has enabled us to grow into the company we are today.

At Greenhill National Services, we’ve always believed in hard work and forward thinking. That’s a combination for success, and the cornerstone for building a reputation of excellence and innovation. Our suppliers and customers took notice of this, and as a result, Greenhill National Services was asked to service over six thousand 7-Eleven stores nationwide, as well as Texas Health Resources, The Home Depot and many other medical centers, manufacturing facilities, shopping malls… this list goes on.

Today, we bring expert technicians, detailed product knowledge, and our old fashioned work ethic to every project – from simple service at one location, to retrofitting several thousand stores, to providing a comfortable, clean air environment with complete remote automated controls at a major medical facility.

The size and scope of our firm has changed dramatically since our first days. Our commitment to our customers has not. You’ll notice the difference as soon as you call.

Our Team

As with any other company, regardless of its length of time in business, the company experience is the sum total of the experience of its employees at any given time. We are fortunate enough to have a number of personnel with many years of experience in their respective areas of expertise. Click here to meet our team.