Steel look bifold doors with aluminium performance
The Sieger Legacy Bifold Door is a steel look aluminium bifold door system designed for projects that need heritage-inspired styling with the practicality of modern aluminium glazing. With applied glazing bars, thermally broken profiles and flexible configurations, the system brings the character of traditional steel doors into larger folding openings.
The system can be specified with up to 14 sashes, opening corners and biparting layouts, making it suitable for kitchen extensions, garden rooms, renovations, traditional homes and commercial spaces where the glazing needs to feel refined, characterful and practical.
Sieger Systems supplies and installs steel look bifold doors across London, Buckinghamshire, Berkshire, Oxfordshire, Hertfordshire, Surrey, Bath, Bristol and Somerset.
Premium performance
Bespoke made to order
Designed & made in the UK
PRODUCT FEATURES
Sieger legacy bifold door features
Steel look design
Up to 14 sashes
Opening corners
PAS 24 security
To learn more about additional features:
Technical performance
| Sightline | 120mm aluminium profile |
| Thermal performance | Uw values from 1.4 W/m²K |
| Maximum pane size | Up to 1.2m wide x 3m tall |
| Glass specification | Up to 45mm insulated double glazing with low-E coating and argon gas filling |
| Configurations | Up to 14 sashes, opening corners and biparting layouts |
| Weather and security | PAS 24 security, water 9A, air 4 and wind A3 |
GLASS OPTIONS
- Insulated double glazed units
- Low-E coated glass
- Argon gas filled glazing
- Glass units up to 45mm thick
- Safety glass options
- Project-specific coated or laminated glass
- Switchable tinted glass
- Heated glass
