Air Curtain

Mounted over doors, air curtains create an invisible barrier that separates the ideal interior temperatures from exterior conditions.

They keep air from coming in through an open door by adding a fast-moving, streamlined air stream.

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Creating an air partition between two areas prevents outdoor air from entering and indoor air from escaping.

This helps the HVAC system work more efficiently by protecting the air-conditioned facilities. This in turn reduces overall energy costs (scientific study).

The latest technology allows air curtains to work systematically and maintain the optimum balance between velocity & volume. Having an optimized balance allows air doors to operate at a more comfortable sound level.

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We are official distributors for the manufacturers listed below. As official representatives, we’ll be happy to help explain the best air curtain for your application.

Contact us for a quote or any information regarding their products.

air curtains how they work

Choosing the Right Equipment for Your Application

When choosing the best air curtain for your application, there are several important points to consider:

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There are a lot of different features that let you get exactly what you need to meet your needs.

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Air Curtain Sizes

The most common sizes for a standard air curtain are:

  • 36″
  • 48″
  • 72″
  • 96″

Of course, these are the most common sizes requested. We also have other sizes available, as well as customizable options.

Air Curtain Manufacturers

We are proud to be the official representatives of Berner Air Curtains, the leading air curtain manufacturer in the USA. Berner has been selling its products all over the world since 1956. The company is based in New Castle, Pennsylvania. Berner provides a two-year limited warranty for their air doors.

Williamson & Associates has been named Berner’s Reps of the Year for three consecutive years. We will be happy to assist with any inquiries regarding their products.

Frequently asked questions

Yes. By creating an air partition between two areas, it prevents outdoor air from entering and indoor air from escaping. This in turn saves energy and reduces overall costs.

Yes, air curtains are extremely effective for what they are designed to do. They create an invisible wall of air between two areas. This helps the HVAC system work less. Thus, reducing energy costs. They prevent bugs, flies, dust, and other unwanted contaminants from entering. 


They are used for reducing energy costs and keeping unwanted contaminants out. Especially useful in areas where doors remain open.


Yes. Most flies and bugs cannot penetrate the air curtain’s air pressure.

Providing Air Curtains to the Following Industries

Providing Air Curtains to the Greater Chicago area and Ship Nationwide

R. Williamson & Associates can provide you with fast quotes on the correct air door for your application.

We are official representative covering Illinois, Wisconsin, & Indiana.

We can also send out a trained specialist to assess the area and make certain the proper unit is being used for your specific application. 

We run tests on-site to see how cost effective each model will be to assure maximum efficiency.

Manufacturers We Represent

At R. Williamson & Associates, we pride ourselves on being the official distributor for leading industrial ventilation manufacturers. Our commitment to quality and efficiency ensures that our clients have access to the best products in the market, tailored to their specific industrial or commercial needs.

Why Choose Us?

Exclusive Access: As the official distributor, we provide exclusive access to products that cannot be ordered directly from the manufacturer. This ensures that our clients receive genuine and top-tier products backed by industry leading warranties.

Expert Assistance: Our team is dedicated to assisting you in finding the right product for your industrial or commercial application. We understand the complexities of ventilation needs, and we’re here to guide you through the process.

Streamlined Ordering Process: We facilitate the ordering process by acting as a liaison between the customer and the manufacturer. Our expertise ensures that the proper equipment is ordered the first time, saving you time and resources.

A Wide Range of Manufacturers: We represent a diverse list of manufacturers, each known for their excellence in the field of industrial ventilation. This allows us to offer a wide variety of solutions, catering to the unique requirements of each project.

Our service is more than just a distribution channel; it's a partnership that aims to solve your main pain points in obtaining the products you need.

By choosing R. Williamson & Associates, you are opting for a seamless, professional, and reliable experience in industrial ventilation procurement.

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