Double Glazed
Standard sealed unit with argon gas fill for reliable thermal performance.
Specifications
| Unit thickness | 24mm–28mm |
|---|---|
| U-value | 1.2 W/m²K |
| Sound reduction | 30dB |
Performance
Glazing options
Every sealed unit is built to order. Choose the glass package that matches your thermal, acoustic, privacy, and solar goals — then lock the specification in your project file.
Triple Glazed
Three panes with dual argon cavities for superior insulation.
Specifications
| Unit thickness | 36mm–44mm |
|---|---|
| U-value | 0.8 W/m²K |
| Sound reduction | 35dB |
Acoustic Glass
Laminated glass engineered to reduce external noise by up to 40dB.
Specifications
| Unit thickness | 28mm–32mm |
|---|---|
| U-value | 1.2 W/m²K |
| Sound reduction | 40dB |
Solar Control
Reflective coating to manage solar heat gain without compromising light.
Specifications
| Solar factor | 0.42 |
|---|---|
| Light transmittance | 70% |
| U-value | 1.1 W/m²K |
Self-Cleaning
Pilkington Activ coating breaks down organic dirt using UV and rainwater.
Specifications
| Coating | Pilkington Activ™ |
|---|---|
| Maintenance | Reduced |
| U-value | 1.2 W/m²K |
Obscure Glass
Textured or patterned glass for privacy while maintaining natural light.
Specifications
| Patterns | 5+ options |
|---|---|
| Privacy | Level 3–5 |
| Light transmittance | 60–80% |
Georgian Bar
Internal or external bars creating a traditional multi-pane appearance.
Specifications
| Bar style | Internal / external |
|---|---|
| Patterns | Multiple |
| Material | Colour-matched |
Decorative Glass
Art glass panels, leaded designs, and bespoke patterns for entrance doors.
Specifications
| Styles | 50+ designs |
|---|---|
| Application | Door panels |
| Material | Toughened / laminated |
Energy ratings explained
Window Energy Ratings (WER) combine U-value (heat loss through the unit), g-value (solar heat gain), and air leakage into a simple A++ to E scale. Lower U-values mean less heat escaping; a balanced g-value keeps winter warmth while managing summer overheating. Our standard double-glazed units target Band A or better; triple glazing pushes performance further for low-energy and passive-style builds.
Quick reference
- U-value — W/m²K; lower is better for insulation.
- WER band — whole-window label; depends on frame + glass + installation.
- Building Regulations — we document compliance paths for England & Wales; Scotland and NI may differ.
Performance comparison
Illustrative typical values — your certified figures appear on order confirmation.
| Option | Typical U-value | Sound (approx.) | Best for |
|---|---|---|---|
| Double glazed | ~1.2 W/m²K | ~30 dB | Standard thermal upgrade |
| Triple glazed | ~0.8 W/m²K | ~35 dB | Maximum insulation, quieter rooms |
| Acoustic | ~1.2 W/m²K | Up to ~40 dB | Roads, railways, flight paths |
| Solar control | ~1.1 W/m²K | Varies | Large south-facing elevations |
Ready to configure your project?
Build your quote online, request a free survey, or speak directly with our product team.