Company Profile
Products & Services

Company Profile

United McGill Corporation was founded in 1951 in Columbus, Ohio, as a local sheet metal contractor and fabricator. Today, we are a national company that specializes in engineering, manufacturing, and field installation of many different construction and industrial products and systems. We design our products, adapt them to specific applications, and fabricate them. In many cases, we also provide installation, testing, and follow-up services.

United McGill is a family-owned company whose president is James D. McGill. We are a medium-size company with annual sales of about $40 million. With headquarters in central Ohio, we have a nationwide team of about 270 Associates.

We operate manufacturing plants in central Ohio and five other states. The Company has five operating subsidiaries, and each has been active for decades.

McGill AirClean LLC—Located in Columbus, we have more than 40 years of experience solving the air pollution control problems of a large variety of industrial sources, including furnaces, boilers, incinerators, kilns, and dryers.

McGill AirFlow LLC—We are one of the country’s leading suppliers of commercial and industrial sheet metal ductwork with an extensiveline of products, including round, flat oval, and rectangular ductwork and related items. We have facilities nationwide.

McGill AirSilence LLC—Based in Columbus, we serve broad industrial and HVAC markets with noise control products, including silencers and insulated metal panels.

McGill AirSeal LLC—Based in Columbus, we offer through our distributors a complete line of sealants and adhesives for residential, commercial, and industrial HVAC ductwork.

McGill AirPressure LLC—Located in Columbus, we engineer and manufacturepressure processing equipment, such as autoclaves and vacuum dryers for many industries.

The Company is an equal opportunity employer offering careers in many fields. About 50 percent of our Associates have technical and administrative jobs. Approximately half of our salaried Associates have bachelor’s degrees, and about five percent have post-graduate degrees. The most common majors are in business and engineering. We offer opportunities to pursue careers in fields such as technical sales, sales service, design engineering, production, project and construction management, computer programming, and administrative services.

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Products & Services
McGill AirFlow duct installation

From our beginnings as a sheet metal contractor, United McGill has developed into a diversified company offering a variety of products and services through our five operating subsidiaries. We specialize in customized systems. We handle both small and large projects, ranging in size from a thousand dollars to more than ten million. Our products and services are sold throughout North America, and some are exported to many other countries. Also we have technology license agreements with companies outside the U.S.

McGill AirFlow pioneered the use of spiral duct and fittings in the 1950s. Today we are a nationwide manufacturer of round and flat oval ductwork used for heating, ventilating, and air conditioning (HVAC) systems in industrial, commercial, and public buildings. We also manufacture rectangular ductwork. Our technically knowledgeable staff, modern manufacturing facilities, and computer-aided design systems combine to make McGill AirFlow a leader in this market.

McGill AirFlow offers the most advanced and diverse line of products for airflow systems, including products manufactured by other companies. Our airflow and acoustical laboratories enable us to refine our products for optimum performance. We have Duct Express™ service for our products from seven plants and a national network of sales engineering offices and representatives.

McGill AirSeal helps contractors install efficient duct systems by supplying high-quality duct sealants and adhesives. These products are used to seal duct system joints and to bond insulation to metal ductwork.

McGill AirSilence provides noise control solutions for a wide range of industrial and HVAC applications. Our acoustical products include duct system silencers, a diverse line of insulated panels for enclosures, and many noise control materials.

McGill AirPressure offers the following equipment and services:

  • Autoclaves, including those used in the manufacture of advanced aerospace composite materials. We have supplied some of the world’s largest and most advanced autoclave systems. McGill AirPressure pioneered a practical, small autoclave system for use in laboratories and with small process applications. This Mini-Bonder™ autoclave is used by companies developing and producing CRT screens, safety and architectural glass, and bonded circuit boards.

  • Vacuum Dryers, including rotary, shelf, conical, and chamber types, for processing materials that are sensitive to heat, and susceptible to oxidation, or release hazardous gases into the atmosphere during the drying process. These dryers are used in the chemical, pharmaceutical, and food and beverage industries.

McGill AirClean offers the following equipment and services:

  • Electrostatic Precipitators (EPs) are used for the control of particulate emissions in a variety of industries. Applications include coal- and wood-fired boilers, wood dryers, glass-melting furnaces, steel-making processes, chemical recovery furnaces, and lime and refractory kilns. Using McGill AirClean’s unique designs, these high-efficiency precipitators enable numerous industries to meet today’s clean air standards.

  • Fabric Filters provide industry with another option for solving air pollution control problems. Fabric filters are used for applications including industrial boilers and furnaces, municipal waste incinerators, and infectious waste incinerators.

  • McGill's spray-dry scrubbers are often included with our precipitators and fabric filters in turnkey systems for solving acid gas emission problems.

  • Regenerative Thermal Oxidizers (RTOs) are another air pollution control option, which provides effective volatile organic compound (VOC) control for industrial processes. Regenerators made of ceramic grid blocks recover heat from the combustion chamber, enabling the systems to operate with exceptional thermal efficiency and dependability.

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McGill AirClean acid gas scrubber installation

United McGill, through its five operating subsidiaries, provides products and services to customers in a wide range of industries. The following is a select list of our major customers:

Lockheed Martin
McDonnell Douglas
General Motors
B.F. Goodrich
Chemical and
Abbott Laboratories
Bristol-Myers Squibb
Eli Lilly
Procter & Gamble
Several thousand sheet metal and mechanical contractors
Electrical and Electronic
Microchip Technologies
Thomson Consumer Electronics
Anchor Hocking
General Electric
Owens Brockway
Owens Corning
PPG Industries
St. Gobain
Pulp & Paper and Wood Products
International Paper
Louisiana Pacific
MacMillan Bloedel
S.D. Warren
Temple Inland
Union Camp
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©2001-2015 United McGill Corporation
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United McGill Corporation—Family owned and operated since 1951
All the trademarks (™) and registered trademarks (®) in this Web site are the property of United McGill Corporation.