Double Glazed Windows will not shut airtight properly

[Caesar]

Hi All

I have a couple of Double Glazed windows and think they are made from Painted Aluminium.
When the windows are opened and the shut they do not engage back into the frame to provide an airtight seal. You hear the outside road noise and air seem to get past the Window and Frame where the meet near the hinge mechanisms.

Any ideas what the problem maybe?

Many Thanks

Caesar

 

[footprints]

If fairly old often the hinges fail a small plastic link on them fractures so they do not fold in properly operate the window and look carefully at the hinges.
Have a look at the picture on this site.
https://thewindowwizard.biz/upvc-advice-and-help/upvc-window-hinge-broken-plastic-slider/

 

[Caesar]

Hi Footprints

Many thanks for the info, really appreciate it.