Installed UK-wide

Folding glazed doors

Multi-panel aluminium folding doors that open most of a frontage, fitted across the UK. They suit cafés, bars and restaurants that trade onto the pavement in good weather. Indicative prices run from £3,000–£5,000 for three panels to £8,000–£14,000 for an eight-panel run.

Consents this work tends to involve

  • Planning permission
    Usually needed

    Opening up a frontage changes its appearance, and a café spilling onto the street can raise questions beyond design.

  • Listed building consent
    Sometimes

    Almost certain to be needed — and hard to get — on a listed shopfront.

  • Building regulations
    Usually needed

    Escape routes, safety glazing and thresholds all apply.

An installer’s general guide; your council decides.

Will a council allow bi-folds on a traditional frontage?

It depends heavily on the building. On a modern unit they are often uncontroversial. On a traditional front the problem is that a folding system replaces the stallriser, pilasters and fixed glazing with a stack of frames, and when the doors are shut the proportions are rarely those of a shopfront. Show the council the closed elevation, not just the summer photo.

Can folding doors be a fire exit?

A folding set is a poor primary escape door: the leaves have to be unlocked and folded in sequence. Keep a conventional door within the run, or elsewhere, as the escape route.

Do I need anything from the council to put tables outside?

Planning for the doors and permission for tables on the pavement are different things. Furniture on the public highway usually needs a pavement or street café licence from the council — check that before the doors are designed around it.

Standards and regulations

ReferenceWhat it covers
Approved Document KSafety glazing in doors and side panels.
Approved Document BFire safety, including escape doors and routes.
BS EN 14351-1Product standard for windows and external pedestrian doorsets.

Indicative prices

  • Three panels£3,000 – £5,000
    Opening up to about 3 m
  • Five panels£5,000 – £8,000
    Opening up to about 5 m
  • Eight panels£8,000 – £14,000
    Wide commercial frontages

Supply and fit, before survey. How prices are built up.

Questions

How secure are bi-fold doors when closed?
A good commercial system with multi-point locking, laminated glass and secure intermediate locks is reasonable. They are not a shutter; on a high-risk site, plan an internal grille or roller into the design from the start.

Related

  • Aluminium shopfronts — Framed glazed fronts in powder-coated aluminium, proportioned to the building they sit in.
  • Frameless glass fronts — Structural glass with patch fittings, for settings where the view in is the point.
  • Roller shutters and grilles — Internal, lattice and vision shutters chosen for the street they face, not just the risk.

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