white internal bifold door

The Cost of Internal Bifold Doors

Internal bi-fold doors allow you to inject a little extra space and light into your interior.  They make excellent room-dividers, whether it’s to separate kitchens, livings rooms or dining areas.  One of their chief advantages is their tremendous size; they can be anywhere up to seven or eight metres long.  Naturally, this means that they vary considerably in price!

How Much Do Internal Bi-fold Doors Cost?

There are many factors which influence the price of internal bi-fold doors.

Size

Needless to say, the bigger the door, the more it will cost – both from the cost of the extra materials, and the cost of the labour involved in producing and installing the door.

Bi-folding doors are complex things.  While a traditional French door might consist of just two panels attached to a frame via hinges, a bi-fold door might contain six or more; each of which tether not only to their neighbours but also to a long rail, along which a carriage runs.

Size matters.  3-metre bi-fold doors cost, on average, around £800.  However, the number of panels will typically influence the cost of the door more than its actual size due to the cost of the bi-folding hardware.  For example, our 5+0 panel doors vary in size by almost two metres, but they each cost the same.

That’s the cost of the door itself covered – but what about the cost of installation?  If you need to enlarge or shrink the opening in your wall to accommodate your door, this can get expensive quickly, as skilled labourers will be required to complete the job.

Materials

Most quality internal bi-folds are made from timber, with aluminium and uPVC generally being the preserve of external bi-fold doors.  The cost of timber bi-fold doors will vary.  Engineered timber doors, which combine several different lengths of timber into a warp-resistant whole, are the standard – but you might cut costs by going for something less prestigious.  When considering materials, bear in mind that inferior materials will not hold their shape, nor their value, and they’ll require more regular maintenance.

Glazing

Part of the charm of a large, folding door, is that it’ll introduce more glass into the room.  More glass leads to a greater sense of space, and more light dispersal through your home.  The more glazing you use, the more the door will cost – though other factors tend to be more influential.

Finish

Getting the door fully-finished at factory level will cost a little bit more, but it’ll save you the trouble of having to finish the door yourself.  Factory finishes tend to be more resilient than those you might apply at home, so they’ll save you the long-term cost of touching up your door each time something knocks against it.  On the other hand, if you’d like to get the job done yourself in a particular way, applying the finish yourself is the only way to proceed!

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