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Aluminium Bifold Doors

Slender sightlines, exceptional thermal performance and panels up to 1.2m wide. Our aluminium bifold doors are the architectural choice for transforming homes that demand both elegance and durability.

Specifications & features

  • Polyester powder-coated frames in any RAL colour
  • Slim 70mm sightlines for maximum glass area
  • U-values from 1.3 W/m²K with thermally broken profiles
  • Multi-point locking and PAS 24 security as standard
  • Configurations from 2 to 7 panels, opening in or out
  • 10-year frame guarantee, 5-year hardware

Where they work best

Modern extensions, kitchen-diners and seamless garden access where slim frames matter. A aluminium bifold doors installation typically takes 1–3 days from delivery to handover, with minimal disruption to the rest of the property.

The BifoldingDoor.net difference

Bifolding doors look simple from the outside — five panels, hinges, a track. The reality is more demanding. A well-installed bifold needs precise frame preparation, dead-level thresholds, weather-sealing that anticipates British rain, and an installation crew that has fitted enough of them to know exactly where things go wrong.

We've fitted these doors since 2015. Every aluminium bifold doors installation is surveyed by a specialist, manufactured in a UK factory to your exact opening, and installed by our directly-employed teams — never subcontracted.

FAQ

Aluminium Bifold Doors — common questions

The questions we hear most often during aluminium bifold doors site surveys. Anything not covered here, get in touch and we'll answer it properly.

How much do aluminium bifold doors cost?

Aluminium bifolding doors typically range from £3,500 for a 3-panel set to £8,000+ for premium 5–7 panel configurations. The final price depends on the number of panels, opening width, glass specification (double or triple glazed, solar control), threshold type (low or rebated), and finish (standard RAL colour or dual-colour). At BifoldingDoor.net all quotes are fixed-price after a free site survey — no escalation, no hidden extras.

How long do aluminium bifold doors last?

A well-installed aluminium bifold door has a typical service life of 25–30 years. Aluminium frames don't warp, rot or rust, and the powder-coated finish is rated for 25+ years. The hardware (hinges, rollers, locks) is the wear component and typically lasts 15–20 years before replacement. Our installations come with a 10-year frame guarantee and 5-year hardware guarantee.

Are aluminium bifold doors energy efficient?

Yes — modern thermally-broken aluminium bifolds achieve U-values from 1.3 W/m²K, which is comparable to triple-glazed windows. The 'thermal break' is a polyamide strip running through each frame section that prevents heat transfer through the aluminium. Combined with argon-filled double or triple glazing and warm-edge spacers, a properly specified aluminium bifold won't be the weak point in your home's thermal envelope.

What's the maximum panel size for aluminium bifold doors?

Aluminium bifold panels can be up to 1.2m wide and 3m tall — significantly larger than uPVC equivalents (typically 1m max). For very wide openings, configurations of up to 7 panels are possible, giving total widths of 8m+. Larger panels mean more glass and slimmer overall sightlines, but also more weight per leaf — the hardware and floor track must be specified accordingly.

Can aluminium bifold doors be powder-coated in any colour?

Yes — the standard finish is polyester powder-coating in any RAL colour, with anthracite grey (RAL 7016), jet black (RAL 9005) and traffic white (RAL 9016) being the most popular. Dual-colour finishes are also available — different colours inside and out — which is useful when matching existing exterior cladding while keeping a neutral interior. Special textured and woodgrain effects are available on request.

Do aluminium bifold doors require planning permission?

For most domestic installations replacing existing doors or windows, no — bifold installation falls under permitted development rights. Planning permission is typically only required for: listed buildings, properties in conservation areas, extensions over permitted development limits, and flats/maisonettes. Building regulations approval (separate from planning) is required, but is normally handled via FENSA self-certification, which is included in our installations.

Ready to discuss your aluminium bifold doors?

Tell us your opening size and we'll provide a fixed quote within 48 hours.

We typically respond within 2 working hours.