Slimline Secondary Glazing
Ultra-thin profile secondary glazing with minimal visual impact. Perfect for period properties, conservation areas, and where aesthetics are paramount.

Slimline Advantages
Combining performance with aesthetics for the most discerning properties
Only 20mm frame depth - the slimmest profile available while maintaining structural integrity and performance.
Virtually invisible when closed, preserving the original appearance of your windows and architectural features.
Ideal for listed buildings and conservation areas where planning restrictions limit visible alterations.
Perfectly suited to Georgian, Victorian, and Edwardian properties where original character must be preserved.
Despite the slim profile, delivers excellent thermal and acoustic performance comparable to standard systems.
High-grade aluminum frames with precision engineering for durability and long-term performance.
Profile Comparison
See the difference slimline makes
More visible, impacts window aesthetics
Virtually invisible, preserves original appearance
Perfect Applications
Where slimline secondary glazing excels
- Grade I & II listed buildings
- Conservation area compliance
- Historic window preservation
- Planning permission friendly
- Sash window compatibility
- Original feature preservation
- Character property enhancement
- Architectural integrity
- Mayfair and Belgravia
- Kensington and Chelsea
- Hampstead and Highgate
- Richmond and Barnes
- Show homes and displays
- Luxury developments
- Boutique hotels
- High-end offices
Performance Specifications
Slim profile, full performance
Ultra-slim profile with minimal visual impact on window appearance.
Excellent acoustic performance despite the reduced frame thickness.
Significant thermal improvement while maintaining slim aesthetics.
Preserve Your Property's Character
Get slimline secondary glazing that enhances performance without compromising aesthetics.