Greater London · England

Bifold Doors in Greater London

Homeowners in Greater London can get a written bifold door quote that fixes the price for the panels, glass, threshold, colour and locks shown.

Guide from £3,595
79 towns covered
Postcode areas BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC

Bifolding doors for extensions in Greater London: what to know

Bifold door panels have wider frames where they meet than a sliding door, because each panel needs its own frame and hinges. A five-panel set shows four vertical sightlines when closed. If the view matters more than a fully open wall, a sliding door may suit better, so compare both.

Bifold door tracks need keeping clean: vacuum or brush grit from the bottom track and drainage slots regularly, wipe frames with mild soapy water and lightly lubricate the locking points. Panels that drag or catch usually need adjustment at the hinges or rollers, which a glazier can carry out.

Bifold doors take longer to manufacture than standard doors because each set is made to the opening and coated to order. Fitting a typical set usually takes one to two days, depending on width, removal of old doors and any making good to plaster, flooring and the patio outside.

In England, replacement doors with more than 60% of the internal face glazed should achieve a U-value of 1.4 W/m²K or a Doorset Energy Rating of band C under Approved Document L. New openings in extensions are assessed with the whole extension, and large glazed areas may need energy calculations.

Open black bifold doors leading from a kitchen to a patio and garden

Towns we cover for bifold doors in Greater London

Choose your town for local details, nearby areas and the postcode districts we cover.

What applies in Greater London

Approved Document K requires safety glass in critical locations in England: glazing in doors and in side panels within 300 mm of a door, up to 1500 mm above floor level, and any glazing in walls or partitions up to 800 mm above floor level.

In England, replacing a whole window, roof window or glazed external door is building work. It has to be notified to building control, either by an installer registered with a competent person scheme such as FENSA or Certass, or through a building notice to the council. Replacing only the glass in an existing frame is a repair and is not notifiable.

Parts of Greater London are within about 15 km of the coast, where exposure to wind and salt air is worth planning for. Salt deposits gather in bifold tracks and on rollers, so coastal sets need more frequent cleaning, stainless or protected running gear, and a coating suited to marine exposure. Wind-driven rain makes a raised threshold or good drainage especially important on exposed elevations.

Long, heavy bifold panels need planned access through the house or a side passage, and parking close by for unloading. In terraces and flats, check permitted development rights, freeholder consent and conservation area rules before ordering.

Guide prices

Guide prices inc VAT for typical jobs. Remote and island locations are quoted by arrangement. Your written quote fixes the price after measuring.
Typical job	Guide price inc VAT
Aluminium bifold, 2400 mm wide	£4,295 – £5,495
Aluminium bifold, 3000 mm wide	£5,095 – £6,595
Aluminium bifold, 4800 mm wide	£7,495 – £9,595
uPVC bifold, 3000 mm wide	£3,595 – £4,595

Choosing your bifold doors

Aluminium bifolds

Slim, stiff thermally broken panels that carry large glass units, powder coated in a wide range of colours and finishes.

Timber bifolds

Engineered hardwood or softwood panels for a natural finish, factory coated and needing periodic re-coating over their life.

uPVC bifolds

A lower-cost option with bulkier frames, suited to smaller openings with fewer panels, available in white, grey and woodgrain foils.

Glass specification

Toughened low-E double glazing as standard, with triple glazing, laminated security glass or solar-control coatings available.

Bifold Doors in Greater London: questions

What guarantee comes with bifold doors?

Manufacturer guarantees apply to the frames, coating, hardware, rollers and sealed units, and the terms are confirmed in writing. Cover for running gear can depend on regular cleaning and adjustment, so read the conditions. Guarantee terms for the installation are set out in writing with your quote, so you know what is covered before going ahead.

Do bifold doors leak or let in draughts?

Well-made bifold doors fitted level and square should keep out wind and rain, but they rely on accurate installation, a sound lintel and working drainage. Leaks usually come from blocked track drainage, a flush threshold on an exposed elevation or panels that have dropped out of adjustment. Keeping the tracks clean prevents most problems.

Should bifold doors open inwards or outwards?

Outward-opening bifold doors are more common because the stacked panels sit outside and leave the room clear. Inward opening suits balconies, raised decks or tight patios where outward panels would block the space. The direction also affects weather performance and furniture layout, so it is decided at survey with the room plan in mind.

Do bifold doors need building regulations approval?

Yes. Fully glazed replacement doors like these are controlled fittings, and in England an installer registered with a competent person scheme can self-certify them, or building control approves the work. A new or widened opening is structural work and needs building control approval for the lintel or steel. Wales, Scotland and Northern Ireland set their own requirements.

Which parts of Greater London do you cover for bifold doors?

We cover the whole of Greater London, including Islington, Bexleyheath, Barking, Sutton and Croydon, and postcode areas BR, CR, DA, E, EC, EN, HA, IG, KT, N, NW, RM, SE, SM, SW, TN, TW, UB, W, WC. Building rules for bifold doors here follow the regulations for England. Enter your postcode on the quote form and we will confirm cover; then a glazier will arrange a free survey before giving you a written quote.

Other glazing services in Greater London

All glazing in Greater London · Bifold Doors across the UK

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