Project Overview
We recently completed the supply and installation of high-performance double glazed spiral balanced sash windows at the prestigious Radisson Blu Hotel, located at 31–36 Leicester Square, London (WC2H). This commercial project required balancing modern thermal efficiency with strict aesthetic guidelines suitable for a prominent period-style building in Central London.
The Challenge: Commercial & Period Requirements
Operating a high-end commercial property in a busy, high-footfall area like Leicester Square means facing unique logistical and structural challenges. The existing window systems needed an immediate upgrade to address two critical factors:
- Acoustic & Thermal Insulation: Ensuring maximum guest comfort by minimizing central London traffic noise and drastically improving the building’s energy efficiency.
- Aesthetic Preservation: Maintaining the historic, period-style architecture required for commercial properties situated in prominent London conservation zones.
Our Solution: High-Performance Window Systems
To meet these rigorous demands, our team executed comprehensive sash window repair and installed custom-engineered spiral balanced systems. This specific application is highly suited for both large-scale commercial developments and historic period restorations because it replaces traditional heavy weights and pulleys with a modern, smooth-operating spring mechanism.
- Enhanced Thermal Performance: Premium double glazing prevents heat loss and lowers operational energy costs.
- Smooth Operation: The heavy-duty spiral balance mechanism ensures effortless functionality for larger, commercial-grade window sashes.
- Period Styling: Designed to seamlessly match the classic architectural heritage of the Westminster/Leicester Square property portfolio.
The Result
The upgrade was a complete success, delivering a dramatic boost to the building’s internal thermal comfort, external noise dampening, and overall operational smoothness. The Radisson Blu Hotel now benefits from cutting-edge modern window technology without losing a single ounce of its classic period charm.



