Aluprof MB-86 Fold Line HD

No: they are different names for the same door, whose leaves fold against each other like a concertina and slide to one side. Aluprof calls its system Fold Line.

The manufacturer gives up to eight leaves, each 700 to 1,200 mm wide and up to 3,000 mm high, so a door set of well over nine metres. The stack of folded leaves takes up space on the side where it gathers; the configurator tells you how much.

A lift-and-slide door has less profile in view and larger panes, but one panel always stays in front of the opening. Bifold doors open completely, but have two profiles per leaf in view. For the view: lift-and-slide. For the open wall: bifold.

Yes, with the low threshold at 3.5 mm above the floor and drainage on both sides. The surface-mounted threshold with a rebate seal closes tighter; choose that if wind and rain hit the elevation head-on.

Often yes: a layout with a traffic door at the side that opens independently of the rest is common with bifold doors. Set it in the configurator under the layout; if what you want doesn't fit there, ask for it in the comments.

Delivery to the UK is quoted with your offer. Bifold doors arrive in several parts; make sure someone is there to receive them and that there is room to set the parts down.

Production time is 6 to 8 weeks, the same for all our suppliers (our figure as of 15 September 2026). Delivery to the UK is quoted with your offer. The quote itself is quicker: you'll hear from us within three working days of your request; if it takes longer, you'll hear that within the same three working days, with the date it will be ready.

What you put together in the configurator is what you get: the profile you chose, in your size and layout, with the glass and colour you picked for it. The summary — the last step before your request goes out — lists line by line what is in your configuration, and anything not listed there isn't included. So you know before you unpack, not after. Delivery to the UK is quoted with your offer.

No. We supply, we don't install. That has one consequence you need to know about: replacing windows and doors in England and Wales is notifiable building work. An installer registered with a **competent person scheme** (FENSA or Certass, for example) notifies it for you; otherwise you notify building control before the work starts. Because we don't install, this is down to your installer — agree it with them before you order. Scotland and Northern Ireland have their own rules.

We supply six types of glass: HR++ double glazing (Ug 1.1), triple glazing (HR+++, Ug 0.6), obscure glass in double and triple, and P4A laminated safety glass in double (Ug 1.0) and triple (Ug 0.6). For colour there are core colours, dark and other foils for uPVC, and smooth or textured powder coating in RAL colours for aluminium. Which combination is available on this particular profile, the configurator tells you — it refuses a combination that doesn't exist rather than quietly supplying it.

No. A window or door built to your measurements is made to measure, and made-to-measure goods fall outside the right to cancel. We tell you that before you order, not in the small print. In return, we take the risk out at the start: a size guarantee, a sample set so you can see the colour in your own light, and a fixed procedure if something is damaged on delivery.

Check it with the driver before you sign, and have any damage noted on the delivery note. Until the goods are in your hands, transport damage is **our risk**, not yours. If you still find visible damage when you unpack, report it with photos **within two working days of delivery**. That doesn't cover what you *couldn't* see on delivery: for hidden defects your normal statutory rights on faulty goods apply.