Semi Unitised Glazing System
Semi Unitised Glazing System
Balanced. Versatile. Ideal for Mid to High-Rise Façades.

What Is a Semi Unitised Glazing System?
In a semi unitised system, the vertical mullions (main framework) are installed at the site, while the glass panels with their attached frames are pre-fabricated in a factory and then assembled on-site. This method combines the strength of structural systems with the precision of factory glazing—offering a dependable mid-range solution between conventional stick and full unitised systems.
Key Features
✅ Hybrid Installation Process
Mullions are fixed on-site; glass panels are factory-assembled and installed floor-by-floor, ensuring faster completion than stick systems.
✅ Improved Sealing & Alignment
Pre-glazed panels reduce chances of installation errors and ensure consistent air-tight and water-tight sealing.
✅ Cost-Effective
Lower fabrication and transport cost compared to unitised systems, making it suitable for medium to large projects.
✅ High Performance
Offers excellent resistance to wind, water, and air infiltration, ensuring long-term building envelope protection.
✅ Design Adaptability
Compatible with double glazing, laminated glass, tinted or reflective finishes, and other architectural elements.
✅ On-Site Flexibility
Allows minor adjustments during installation, helpful in projects where site conditions vary.
Advantages at a Glance
Feature | Semi Unitised System | Stick System |
---|---|---|
Installation Speed | Faster than stick system | Slow, fully site-assembled |
Quality Control | Factory glazing = better control | Fully dependent on on-site skill |
Water & Air Tightness | Excellent | Moderate |
Cost Efficiency | More cost-effective than unitised | Low upfront but higher labor |
Design Customization | High | Moderate |
Ideal For:
Mid to High-Rise Commercial Buildings
Residential Apartments & Complexes
Hospitals & Educational Institutes
Shopping Malls & Business Parks
Why Choose Hindustan Windows?
With Hindustan Windows, you’re not just choosing a product—you’re investing in:
Expert engineering and fabrication
Precision installation by trained teams
On-site support and after-sales service
Custom designs tailored to your building’s requirements
Our semi unitised glazing systems are crafted to ensure performance, safety, and visual appeal—all at a competitive value.