Heritage Anthracite Grey Aluminium External Bi-folding Doors

- The iconic "Crittall style" is enhanced with 40mm horizontal glazing bars across the doors, inside and out, featuring integral bars within the glass units.
- Delivered to your home fully assembled with glass units supplied loose for on-site glazing due to handling weight.
- Features a 175mm hard-wearing anodized sill.
- Equipped with stylish Black Handles and Hinges.
- Offers market-leading thermal performance levels.

These Heritage aluminium bifold doors are designed to become a focal point in living rooms and kitchens, particularly where the building canopy is extended to create more open-plan living space, seamlessly integrating your home with your garden. Available in sizes ranging from 1800mm to 4800mm, these versatile bifold door sets are ideal for self-builders, designers, or developers. You can easily incorporate a standard product into your design, confident in the knowledge that the finished installation will deliver everything promised.

Installation is straightforward as these grey bifold doors come assembled and pre-adjusted, requiring little to no onsite adjustment. Once the frame is properly set, the patio doors can be installed within hours, following the easy-to-understand instructions included with each set.

The glass is supplied loose to facilitate installation, and we recommend using a professional installer. The glass units need to be fitted on site using traditional toe and heel methods, and the horizontal bars should be installed post-glazing to ensure perfect alignment.

Installation times vary from 4 hours for a small set to 8-10 hours for the largest sets, depending on the pre-prepared opening sizes. For a flawless installation, follow our recommended structural opening size information.