Completed school ventilation upgrade featuring newly installed manual window control systems.

Specialist Manual Window Control Installation | Proven School Success

The Client: Bishop’s Stortford College is one of the UK’s leading independent co-educational day and boarding schools. Located in Hertfordshire on a 130-acre campus, the College blends historic architecture with modern facilities to provide an exceptional learning environment for pupils aged 4–18.


The Brief: The College required a reliable and safe ventilation solution for their modern classrooms. The project involved installing manual window controls on high-level windows that were out of reach for staff and students. The priority was to ensure easy operation while maintaining the clean, contemporary aesthetic of the learning space.


The Solution: We installed a high-specification manual window controls (often referred to as Teleflex gearing). To complement the classroom’s modern design, we utilized black conduit and operators to match the existing black window frames seamlessly.
This installation allows staff to easily regulate airflow and temperature from a safe, accessible height without the need for ladders or poles. The result is a discreet, functional system that ensures a comfortable and safe environment for teaching and learning.

Technical Specifications

  • Project Scope: Supply and installation of manual window controls for 22 high-level windows.
  • System Type: High-performance manual winding gear.
  • Actuators: 22 x Clearline 250 Chain Operators (250mm opening stroke).
  • Control Units: Clearline Midi Operators for smooth, low-effort winding.
  • Finish: Powder-coated Black to match existing window profiles.
  • Application: Natural ventilation for educational spaces.

Why We Chose Clearline 250

We selected the Clearline 250 system for this project because of its compact design and high corrosion resistance. The “Midi” control handle is specifically designed for schools, offering a robust mechanism that can withstand daily use while remaining easy for staff to operate.


Looking for ventilation solutions for your school or commercial project?

Our team specialises in supplying and installing high-quality window control systems tailored to educational environments. Contact us today to discuss how we can improve safety, airflow, and accessibility in your buildings.

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