Sash Window Secondary Glazing: Complete Guide
Our sash window secondary glazing solutions are designed to preserve the original character of your period property while providing modern insulation benefits. We use specially designed systems that complement existing window frames, enhancing both aesthetics and functionality.
Window Styles Available
Standard Vertical Sliding
Our traditional vertical sliding secondary glazing is expertly designed to complement your existing sash windows while providing superior insulation and noise reduction benefits. The system features:
- Smooth, balanced operation with high-quality spring balances
- Custom-matched frame colors to blend seamlessly with your existing windows
- Precision-engineered sliding mechanism for effortless use
- Discrete brush seals for enhanced draught proofing
- Optional tilt-in facility for easy cleaning access
Perfect for period properties, our vertical sliding secondary glazing maintains the original character while significantly improving thermal and acoustic performance. The system can reduce heat loss by up to 65% and noise levels by up to 80%.
Installation is carried out with minimal disruption to your property, and our expert fitters ensure perfect alignment and operation. The result is a virtually invisible solution that enhances your windows' performance without compromising their historic charm.
Tilt-In Sash Windows
Our innovative tilt-in secondary glazing system combines traditional aesthetics with modern convenience, offering exceptional accessibility for cleaning and maintenance. Key features include:
- 90-degree tilt-in functionality for safe and easy cleaning from inside
- Advanced safety mechanisms to prevent accidental release
- Suitable for high-rise applications where external access is challenging
- Integrated child safety locks
- Weather-resistant seals for superior draught protection
The tilt-in mechanism is particularly valuable for upper-floor installations where external cleaning would be difficult or dangerous. The system maintains all the thermal and acoustic benefits of our standard vertical sliding units while adding unprecedented accessibility.
Each unit is custom-manufactured to your exact specifications, ensuring perfect fit and operation. Our expert installation team will demonstrate the safe operation of the tilt-in mechanism and provide comprehensive care instructions.
Glass Options and Specifications
4mm Standard Glass
- Basic toughened safety glass
- Noise reduction up to 29dB
- Suitable for quiet residential areas
- Cost-effective solution
- Standard security features
6.4mm Entry-Level Acoustic Glass
- Entry-level laminated glass
- Noise reduction up to 32dB
- Good for suburban areas
- Enhanced security features
- Basic noise reduction properties
6.8mm Enhanced Entry Glass
- Enhanced entry-level acoustic glass
- Noise reduction up to 33dB
- Suitable for urban residential areas
- Improved security features
- Better noise reduction capabilities
8.8mm Medium Performance Glass
- Medium-performance acoustic laminated glass
- Noise reduction up to 35dB
- Ideal for properties near busy roads
- Enhanced security features
- Perfect for urban environments
10.8mm High Performance Glass
- High-performance acoustic laminated glass
- Noise reduction up to 38dB
- Suitable for city centers
- Superior sound dampening
- Excellent for properties near railways
12.8mm Premium Glass
- Premium acoustic laminated glass
- Maximum noise reduction up to 41dB
- Ideal for high-noise environments
- Ultimate security protection
- Perfect for properties near airports
Ready to Transform Your Sash Windows?
Contact us today for a free consultation and quote. Our experts will help you find the perfect sash window solution that maintains the character of your property while providing modern performance benefits.