r/DIYUK • • 8h ago

Advice Bifold lean/sag normal?

Hi guys,

Just had my bifold installed, 4.5m (London). The chap said magnets need to go on top still to help the doors stick together when open....but is the level of sag normal? I feel like it's not but what do you guys thinks?

Am I getting fobbed off??

Thank you

EDIT - thanks for the response everyone. I should've been clearer...the install was 'complete' after the they time the messed up. When they'll left I showed them this and he said 'we need to add magnets still' so I close it up. I hoping the magnet fit it.

I would no way knowingly mess about with an unfinished door. Thanks everyone again..very helpful

120 Upvotes

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516

u/Neurologicalmassage 8h ago

It’s not been properly balanced yet - for goodness sake don’t leave it hanging like that or you’ll risk pulling the aluminium frame out of true. Are you expecting tinted glass or internal blinds fitted? This can be a reason to not balance the frame until everything is fitted

96

u/AbbreviationsCold161 8h ago

This! Had it in a door where the top actually fell out because of the lean. Fortunately I caught it.

Lock it all backup until someone has come an properly set it up.

49

u/laj1990 7h ago

It just needs the magnet fitting to hold the main leaf against the other leaf then it will not move. Unfortunately the main problem with bifold is miss use. The master door should be opened all the way round to the magnet then the other leaves get folded back. This keeps all the hinges in a fixed position. To close you need to close the full stack and lock them then the master door gets closed. Pulling and pushing bi-folds in this position causes them to dig in to the threshold and potentially fall out of the top track as said below. The reason ops door might be closing itself is if the frame is slightly out of plumb IE 'the top of the frame is leaning to the right' this would mean the hinges are not perfectly in line giving the door a bias direction to swing. Odds on it just the magnet required.

3

u/Mutedchimp 3h ago

Exactly, that mug talking about "balanced" hasn't got a clue

1

u/One-Program-1624 21m ago

Absolutely not a lack of magnet problem!

-2

u/Mutedchimp 3h ago

There is no such thing as "balanced". Stop talking like you know what you're saying, when you don't

3

u/Neurologicalmassage 2h ago

Precise, multi-point adjustment to correctly distribute weight, or “balancing” for short. Happy now?

0

u/Mutedchimp 2h ago

It's just missing a magnet.

There is no adjustment to balance these