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About Us

Our engineers are experts in fields ranging from aerodynamics, mechanical engineering, structural engineering and more. We’re here make sure you’re getting the right make-up air unit.

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We Are Committed to helping our partners overcome any challenge

We Sell Make-Up Air has been supplying business with high-quality commercial and industrial equipment for over 135 years.

We now exclusively offer the highest-quality air movement and pollution control technology.

Look no further if you need to clean up, heat-up, cool down, separate, or pressurize your facility, process, or people! We Sell Make-Up Air is dedicated to offering you the most comprehensive variety of air movement and air cleaning equipment on the market.

From start to finish, we are here to provide you with the application assistance you require.

Whatever your approach is, whether it’s just equipment or a whole turnkey installation package, we’re eager to please.

Values we live by



We promise to be available and accessible to provide you with the information you need to make informed decisions about your business or plant operation when you need it.


for results

Our solutions are unique, efficient, and effective, and we promise to deliver exactly what you want, sometimes more, but never less.


Constantly improving

We're dedicated to delivering safe, dependable, and long-lasting solutions and connections that give both of us confidence in our choices.

Scott Williamson

Head of Business Operations

Scott Williamson has been head of operations since 1997.