Hinged Secondary Glazing
Full opening access with side-hung or top-hung panels
Per window
Window access
Lockable hinges
Compression seal
Estimated Costs: Standard vs Acoustic Glass
| Hinge Type | Standard Thermal Glass | 10.8mm Acoustic Laminate |
|---|---|---|
| Side-Hung (Casement) | £560 – £1,000 | £700 – £1,250 |
| Top-Hung (Awning) | £600 – £1,100 | £750 – £1,380 |
| Bottom-Hung (Hopper) | £700 – £1,200 | £880 – £1,500 |
Prices include professional installation. Acoustic laminate adds ~25% for significantly higher noise reduction (up to 54dB).
Hinge Configuration Options
Side-Hung (Casement Style)
Panel hinges on left or right side, opens inward like a door
Best For:
- Casement windows
- Narrow to medium width windows
- Windows you open regularly
Features:
- • 90° or 180° opening angle
- • Espagnolette locking option
- • Friction stay hinges
- • Easy external glass access
Top-Hung (Awning Style)
Panel hinges at top, opens outward at bottom for ventilation
Best For:
- Wide windows
- Limited internal space
- High windows (bathrooms)
Features:
- • Variable opening positions
- • Rain protection when open
- • Security stays included
- • Ideal for trickle ventilation
Bottom-Hung (Hopper Style)
Panel hinges at bottom, tilts inward at top
Best For:
- Basement windows
- Above furniture placement
- Safety ventilation
Features:
- • Safe restricted opening
- • Ventilation without rain entry
- • Childproof option available
- • Easy cleaning from inside
Key Advantages
Full Ventilation
Complete window opening for maximum airflow when needed
Easy Cleaning
Full access to both sides of primary window glass
Secure Locking
Multi-point locks available for enhanced security
Ideal Applications
Kitchens & Bathrooms
Where regular ventilation is needed and you want full access for cleaning
Frequently Opened Windows
Daily use windows where you want quick, easy operation
Fire Escape Routes
Where building regulations require unobstructed escape access
Material Options & Costs
| Material | Price Range | Benefits | Best For |
|---|---|---|---|
Acrylic Budget-friendly | £280-400 |
| Frequently opened windows, bathrooms |
Standard Glass 4mm clear | £350-500 |
| Living rooms, bedrooms |
Acoustic Glass 6.8mm laminated | £450-600 |
| Noisy locations, street-facing windows |
Cost Breakdown by Window Size
Small Windows
600mm × 900mm
Medium Windows
1000mm × 1200mm
Large Windows
1500mm × 1800mm
Installation Process
Professional Installation Timeline
Survey & Measure (30 mins)
Precise window measurements and hinge position assessment
Frame Fitting (1-2 hours)
Aluminium frame secured to window reveal with fixings
Hinge & Lock Installation (30 mins)
Hinges, stays, and locking mechanisms fitted
Panel Installation (30 mins)
Glazed panel hung and adjusted for smooth operation
Testing & Adjustment (15 mins)
Operation tested and seal checked
Installation Considerations
Opening Direction
Consider furniture, curtains, and room layout when choosing hinge side
Wall Condition
Solid fixings required - may need additional support for old plaster
Access Requirements
Ensure clear access to window area during installation
Listed Buildings
May require planning permission - check before installation
Hinged vs Other Systems
| Feature | Hinged | Horizontal Sliding | Fixed |
|---|---|---|---|
| Window Access | 100% Full | 50% Half | None |
| Ventilation | Excellent | Good | None |
| Seal Quality | Excellent (compression) | Good (brush) | Best (permanent) |
| Cost Range | £280-600 | £350-700 | £180-400 |
| Space Required | Internal swing space | Minimal | None |
Frequently Asked Questions
Find Your Perfect Hinge Configuration
Expert installers can recommend the best hinge type for your windows