We can fabricate all types of ductwork and can deliver to your project. Duct organized, labeled, wrapped and ready for installation. Send us your drawings and we can estimate your specific project needs. Contact us today for your duct requirements.

Duct-supply, a division of Louisiana CSI fabricates rectangular and spiral duct for commercial, industrial and residential HVAC systems. Buy manufacturer direct for competitive pricing on duct products made from American sheet metal. For estimates call 225-343-9125 or email sales@la-csi.com for product catalog.
We fabricate and install all types of ductwork! Single and Double Wall Spiral, Single and Double Wall Rectangular, Lined Duct- we can do it all. From routine commercial applications such as, Restaurants, Retail and Office Buildings all the way to complex projects in Hospitals, Correctional Facilities, and Sports Complexes- we have the expertise, qualifications and experience to safely get the job done. We can give you an accurate estimate from your plans- Contact us today!
Single Wall Rectangular
High-Quality Duct
Rectangular Duct- Aluminum and Stainless Steel (Double Wall) for Specialty Applications
Duct for specialty applications being manufactured in shop today!
Staff and Fabrication Team
During these challenging times, our team has continued to work safe providing quality duct to our projects and customers. We are proud of how our team has responded!!!
New 20 Foot Vicon Table
Louisiana CSI purchased and installed a new 20 foot Vicon Machinery 520-DL Plasma Table in May 2020. Since installation, this new machine has not slowed down, even in the midst of the COVID-19 pandemic. This machine has 2 cutting beds, allowing us to cut metal on one bed and liner on the other. It also can cut metal or liner on the entire 20 foot cutting area.

Outstanding Achievement
Using BIM to Coordinate Duct Installation
We are using Building Informational Modeling (BIM) to better coordinate duct installation with other trades. This is a snapshot from an upcoming project that is fairly complex.
Contact us today for your HVAC duct fabrication and installation needs.
Aluminum Rectangular Duct
Contact us today so we can provide you with a quotation on all your duct needs.
Safety and Productivity Lunch
Our fabrication shop was recently treated a delicious lunch of South Louisiana crawfish for their excellence in safety and productivity during the first quarter of 2019. Pictured above are our cooks- Chase Leblanc (Fabrication and Facilities Manager), Nick Sweezy (Project Manager) and Darryl Shaffer (Senior Estimator).