AJ Manufacturing

Our products are engineered to meet your project’s unique site characteristics and challenges. Founded in the mid-1920s, AJ Manufacturing has always been in the sheet metal product business. During and immediately after World War II, AJ Manufacturing was once the nation’s largest residential and light commercial manufacturer. In 1974, AJ began specializing in the HVAC industry, particularly in the stainless steel production of custom commercial HVAC supply grilles, HVAC return grilles, registers, and diffusers. This specialization continues to today, as AJ Manufacturing remains a mainstay in the HVAC industry, with products featured in hospitals, laboratories, and commercial buildings. When you visit the 70,000-square-foot AJ Manufacturing today in Kansas City, Missouri, you’ll find Bob Haake, who has been President of the company since 1960, and Rob Haake, treasurer. Today, AJ Manufacturing is the industry leader in custom and standard stainless steel air distribution products for critical environments. State-of-the-art equipment and expert fabricators cut, fold, and assemble our commercial HVAC equipment, including return grilles, ceiling diffusers, and more.