Founded on the principles of integrity, service, and dedication to customer satisfaction

Power and Industrial Air Systems is a manufacturers’ representative organization located in eastern Pennsylvania approximately 1 hour from the Philadelphia and New York metropolitan areas. With well over 100 years of combined experience, we are staffed to provide specification review, proposals, AutoCAD drawings, customer service, and project management in-house and on time.

We were founded on the principles of integrity, service and dedication to customer satisfaction, coupled with the ability to provide quality products from leading industrial manufacturers.

Thank you for your interest in our company. Please feel free to contact us for detailed information on the industries we serve and the manufacturers and products we offer.  

Kevin J. Maydick

After graduating from Lehigh University in 1980 with a Bachelor of Science in Mechanical Engineering, Kevin became proficient in fan design, theory, and application in Buffalo Forge’s 20 month intensive representative training program. At age 23, he ran the Buffalo Forge office in Salt Lake City, Utah for 3-1/2 years before relocating to Buffalo Forge’s Allentown, PA sales office in 1985. Kevin formed K.J. Maydick, Inc. in 1989, a name that was later changed to Integrated Air Systems to more accurately reflect the company’s diversification and growth.

July 2001 brought the formation Power and Industrial Air Systems, Inc. from the combined experience of Kevin and Douglas Wittman. Kevin and Doug share a common philosophy: to provide the highest possible level of service, integrity, and expertise to their customers.  Contact Kevin at or 610-395-3242 x101 

Douglas J. Wittman

After receiving his BS Industrial Engineering degree from the University of Buffalo in 1991, Doug served as a manufacturer’s representative for industrial and HVAC products in the New York City metropolitan area. During this time he focused on specialty ventilation including pharmaceutical, hospital, and tunnel applications and became proficient in layout and specification working with architectural and engineering firms. In 1998, he formed D. Wittman Associates, an independent representative firm specializing in the utility and heavy industrial markets for the mid-Atlantic states

In 2001, D. Wittman Associates merged with Integrated Air Systems to form Power and Industrial Air Systems, Inc., a company with the skill, experience and dedication to serve the needs of the power and industrial markets. Contact Doug at, 215-205-4542, or 610-395-3242 x104 

Linda J. Maydick

Linda has been with the company since 1987, initially in an inside sales and engineering support capacity, and currently as chief financial officer, overseeing corporate accounting and financials. With a Bachelor of Science degree in Chemistry, and previous experience in the microelectronics field, she brought computer and analytical skills that were critical to the company’s growth. Linda holds primary responsibility for in-house AutoCAD work and assists with project management and office administration. Contact Linda at or 610-395-3242 x102 

Scott M. Walker

Scott joined the company in 2010, bringing over 25 years of varied business experience. A diverse background in customer service, management and technical sales, and his broad working knowledge of a variety of markets, trades and industries enable Scott to interact with both engineers and plant personnel at all levels to discuss products and applications.  Contact Scott at or 610-395-3242 x105 

D. Scott Engberg

Scott  graduated with a Bachelor of Science in Mechanical Engineering from Grove City College. He completed the Buffalo Forge engineering training program in 1987 and remained in their inside sales department until moving to Buffalo’s New Jersey sales office, J.A. Lockwood Co., in 1992.

In 2015, J.A. Lockwood Co. became a division of Power & Industrial Air Systems, Inc., retaining its office location in New Jersey. Scott works with numerous product lines, but specializes in custom air handling units, fans and heating and cooling coils. Contact Scott at or 908-284-1478