What Are the Cost Differences Between Stick-Built and Unitized Aluminum Curtain Walls?

Cost differences between stick-built and unitized systems depend on project scale, site logistics and local labor rates. Stick-built systems are fabricated as profiles and glass are assembled piece-by-piece on site. They generally have lower factory costs and are flexible for irregular façades and late design changes, making them attractive where local labor is inexpensive. However, stick-built installation requires more on-site labor, extended scaffold or mast-climber usage, and higher weather-dependency—leading to longer schedules and potential quality variation. Unitized systems, being factory-assembled, command higher upfront fabrication and transport costs but significantly reduce on-site labor, shorten façade schedules and lower weather-related risks. For high-rise projects in the Middle East where construction timelines are compressed and labor costs can be high, unitized façades often deliver better value through faster completion and predictable quality. In Central Asian contexts, cost-efficiency may shift depending on transport distances from factory to site and local installation expertise. Owners should perform whole-life cost analysis: include fabrication, on-site labor, scaffolding, crane time, schedule risk, energy performance and maintenance costs. Often, unitized systems show superior lifecycle value for tall towers despite higher initial panel costs.