Yes, aluminium bifold doors are a good choice when they are well specified. Aluminium is strong enough for slim frames and wide openings, does not warp or rot, and with a thermal break can meet current insulation rules. The trade-offs are cost, a stack of folded leaves and more moving parts than a sliding door.
What makes aluminium a good bifold material?
- Strength: the frame can stay slim, so more of the opening is glass.
- Stability: aluminium does not warp, twist or rot.
- Finish: powder-coated colours need no painting, only occasional cleaning.
- Insulation: a polyamide thermal break and good glazing can meet the 1.4 W/m²K limit for replacement doors in England.
What should you check before ordering?
- A PAS 24 test certificate for the exact door, plus a multipoint lock.
- A thermal break in the frame, not just in the glazing.
- The threshold type and how water drains from it.
- How the rollers and hinges can be adjusted, as hardware wears before the frame does.
How much space do bifold doors need?
Open leaves stack to one side or split to both sides, so allow for the stack depth inside or outside. Keep furniture, radiators and blinds clear of the folding path. Outward-opening systems keep the room itself clear.
When are aluminium bifolds not the best fit?
Bifold leaves fold and stack to one side or both, taking up space and putting frame lines in the view. If you want the least hardware and the biggest panes, a slim sliding door can suit better. As a family-run, Certass-registered installer, we certify replacement doors for Building Regulations compliance.
Thinking about new doors? We supply and fit aluminium doors across Wolverhampton and the surrounding area, and you deal directly with us, the owners. Call 01902 633355, message us on WhatsApp, or request a quote.