Where has this gap come from.

[suts89]

As the title suggests i have a gap between the door and frame when closing the entry/exit door of my bifold doors.

I have added some pics and highlighted (red) where the gap has appeared.

It wasnt always there and since discovering it i have installed a larger seal to try and close it up.

Hopefully its fixable because its doing my head in.

TIA

 

[Wayners]

10 years warranty still valid?

Look up original installer in the UK by using official building regulation certificate database.

 

[crank39]

Does the door rattle when it's just latched but not locked?

Is the gap there when the handle is lifted to lock or when the door is just latched?

 

[suts89]

Warranty has lapsed the doors have been installed 15 years now.

There is no rattle, its very strange the door just leaves a gap from top to bottom when closed.

I have added some more pics to try and show the profile of the door. The pic with my finger in it shows the gap, I've actually installed a larger rubber seal to try and make the gap weather proof.

A few years ago the door was catching at the bottom, the manufacture told me it likely needed toe and healing. I found a local commercial door manufacturer (who i might get in touch with again) who fixed it by just adjusting the hinges. I wonder if this is fixable from the hinges?