McGill AirFlow LLC, a wholly-owned subsidiary of United McGill Corporation, is dedicated to helping you meet your airflow needs. We are able to do this because we have a nationwide network of sales associates, engineers, and representatives. There is a sales engineer in your area, ready to work with you at every stage of your job, from design through startup. Our engineers can suggest ways to improve the performance and profitability of an existing commercial or industrial duct system design, or come up with a totally new design to fit your application's needs. Our engineering staff also presents duct system design seminars and publishes a series of technical bulletins and reports to keep engineers and contractors up-to-date on the latest design technology.