- 124 City Road, London, EC1V 2NX
- 0800 540 4390
- Mon to Sat: 09:00 am to 05:00 pm
WarmCore Aluminium Bi-Fold Doors
Warm, secure and beautiful aluminium bi-folding doors. 25% more thermally efficient than traditional aluminium systems.
- Built with a full-width thermal core for unrivalled insulation.
- 25% more thermally efficient than standard aluminium doors.
- Strong & secure: PAS 24 accredited + ERA Five Star security guarantee.
- Flexible design: Up to 7 sashes wide, inward or outward opening.
- 10-year comprehensive guarantee on all doors.
Upgrade Your Entryway with Windoors.
Want a door that’s as elegant as it is efficient? Let Windoors help you bring your vision to life.
- Revolutionary thermal core (U-values as low as 1.0 W/m²K with triple glazing).
- Available in double or triple glazed options.
- Smooth stacking with discreet magnets (neat aesthetics).
- Robust 5-point locking system with hook locks and shoot bolts.
- ERA Five Star Guarantee (insurance cover, callouts, compensation).
- Weather-sealed with triple gaskets for wind and rain protection.
- Marine-grade powder coating (60–80 microns).
- Max width: 6000mm, max height: 2400mm, max sash width: 1000mm.
Configurations (1–7 sashes wide, flexible splits):
- 3/2/1 (French door style)
- Single door with midrail
Sash Design Styles:
- Pencil Round
- Square
- Decorative
- Chamfered
Threshold Options:
- Aluminium Low Threshold (Part M Compliant)
- 150mm Sill
- 120mm Integrated Sill
- Outer Frame
- PAS 24:2012 accredited.
- ERA Five Star Security Guarantee (insurance, replacement, compensation).
- 10-year comprehensive guarantee on operation & finish.