General Information

Diamonds superior quality, durability, and convenience make it perfect for commercial, agricultural and aviation industries. Every door is custom built and includes more standard features than you will find with any of our competitors. From our convenient single lever locking system to our patented energy saving insulated style door, Diamond continues to lead the industry with innovative new features.

We offer a quality product with competitive industry pricing. So whether you’re building new or upgrading an existing structure, we will work with you to get the best bi-fold for your needs.