A walk-in customer came to our London office looking to upgrade their tired roof lantern.
The existing glass units were underperforming—trapping heat in the summer, leaking warmth in the winter, and making the space below uncomfortable for most of the year. Their goal was clear: transform the space beneath the lantern into a bright, usable area all year round—without the soaring energy costs.
Our Approach
Our technical team assessed the current installation and recommended a simple but powerful upgrade: CUIN units combined with solar control glass. This solution offers the perfect balance of thermal performance and natural light—especially for roof lanterns that sit directly under the sun’s path.
What We Installed
- CUIN insulating glass units for market-leading thermal performance
- Solar control glass to reflect excessive solar heat while maintaining clarity and brightness inside
- The units matched the original thickness, making the swap straightforward—no structural changes needed
The Result
The customer now enjoys a beautifully lit, energy-efficient room that feels just right all year round. Thanks to a significantly lower U-value, heat loss is dramatically reduced in the colder months, and overheating in summer is a thing of the past. The space beneath the lantern is now a feature, not a flaw.
Why It Works
Roof lanterns are one of the most overlooked energy drains in a home. By switching to CUIN with solar control, this customer not only improved comfort but also made a smart investment in energy efficiency and home value.
Outcome
A quick, clean installation. No compromise on aesthetics. Outstanding performance. Another happy client—and another bright, efficient space transformed by BGRL.