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
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 20 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.