About
About Us
Founded in 1902, Milcor has been a leader in the building products industry, specializing in high-quality access solutions. Over the years, we have built a strong reputation for providing a wide range of reliable products, including interior access doors, roof hatches, floor & sidewalk doors, and heat & smoke vents. Known for our ability to create custom solutions tailored to the unique needs of architects, contractors, and building owners, Milcor is proud to set the standard for innovation, quality, and versatility in access products.
Our products are designed with safety, durability, and customization in mind, providing the highest level of performance in the industry. With over a century of experience, we continue to be at the forefront of providing access solutions that meet the demands of various industries.
Why Milcor?
- Reliability & Trust: Milcor products are designed for consistent, high-quality performance.
- Warranty & Support: We provide excellent warranties and reliable customer support.
- Recommended: Trusted by professionals, our reputation reflects our commitment to quality and satisfaction.
Build for the Future
Milcor is part of the Duravent Group portfolio of brands.
With over 100 years of expertise, the Duravent Group is a climate technology leader in the venting and air control industries—delivering high-quality, innovative solutions grounded in a customer-first mentality.
We are building for the future with world-class manufacturing and continuous process improvements that ensure consistent quality, on-time availability, and scalable supply across projects of any size.
Our wide range of venting and chimney system products have a strong history of innovation, reliability, and unmatched quality.
Our combined extensive experience allows us to develop innovative products and solutions that meet the changing needs of professionals and homeowners. We benefit from a team of innovators with a strong, results-driven approach.
The Duravent Group unifies 14 established and respected brands, which include: Duravent™, Hart & Cooley®, Selkirk®, AirMate®, Builder’s Best®, AmeriFlow®, Amerivent®, AMPCO®, Heatfab®, Lima®, Milcor®, Portals Plus™, RPS™, and Security Chimneys®. And, we recently partnered with RUTLAND, Menzies Metal, and PrimexVents.