Industry leading air and water leak resistance

Nobody spends more time getting access doors right than AJ Manufacturing. Obsessively engineered and independently tested to exceed standards.

Innovative AHU and Duct AHU and Duct Assemblies.

A.J. Manufacturing, we’ve been your partner in innovation for more than 50 years, and we’re not stopping now. We’re your dynamic and creative go-to team, forever dedicated to impeccable service and quality. When you work with A.J., you can expect fast quotes, quick turnaround times, and continuous communication, no matter what.

Expertly Designed. Carefully Crafted.

When designing and manufacturing our products, no part or detail is too small. With unmatched precision and extreme attention to detail, we carefully craft products that will last you years to come, with less time, money, and stress spent on repairs.

A.J. Manufacturing - Access Division

Industry leading performance for all Door and Panel design requirements.

  • Near infinite sizes
  • Multiple thicknesses
  • Different core insulations
  • Unparalleled service and quality
  • Variety of markets served
A.J. Manufacturing provides the solutions you desire. Your solution solutions you desire. Your solution for AHU door, panels and for AHU door, panels and modular design. modular design.

Time Tested, Proven, and Guaranteed

Keeping air and water completely sealed isn’t easy. We understand that it has to perform perfectly and that not all doors do. Be confident with AJ Doors – Designed and built for industry leading performance, independently tested, and with a warranty to back it up.

Butt Corner Frame Construction

Tighter tolerance, stronger seal, independently tested.

Durable Seal

Don’t mess around with off the shelf seals. We’ve been refining our proprietary gaskets for over years.

Independently Tested

In HVAC, there are standards. Then there’s AJ Always exceeding the standard so you don’t have to worry.

5 Year Limited Warranty

We back up every door and panel that leaves our facility. We believe in it. You can too.

Foamed in Place Lites

No visible fasteners and a watertight seal for security and performance.

At AJ, the details matter. To us that means designing the industry’s most powerful seal, stainless steel hinges that stands up to corrosion, and view ports that filter 99.99% of all UV-C radiation. All of that is independently tested and backed with a leading 5-year limited warranty.

AJ HVAC Solutions

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