News Groups wrote:
"Colin Chaplin" wrote:
It's definetly double glazed - the outside pane has a hole in it whilst
the inside pane is intact, and from what I can see theres a metal frame
around the two panes, so it's just like a mini double-glazed window pane.

In that case a local double glazing repair firm should be able to make a
replacement sealed unit to order of the correct length, width and depth.
Take the damaged unit with you for sizing and matching of the glass if
patterned or coloured.

Removing the old DG unit is presumably the bit which is causing the OP
most grief. It's quite fiddly - especially with a small panel like this.

The DG panel is likely to be held in by plastic beading (on the inside,
judging from your photos - in which case consult this thread from a
couple of days ago: http://tinyurl.com/2js7rl
(or
http://groups.google.co.uk/group/uk.d-i-y/browse_frm/thread/57544005f01f4588/1d134996917f9d61?lnk=st&q=&rnum=2&hl=en#1d13499691 7f9d61)

As an amateur it's likely to be very hard to remove the beading without
causing damage (cosmetic, at least) to the first length you pry out, so
before you try, you might want to explore the feasibility of obtaining
new beading (it will be specific to the brand of door) - and if you
can't source it, you might want to consider getting in a pro to do it.

The panel might be held in by double-sided tape, which will be extremely
strong - however, AFAIK this is more common with externally glazed panes
which yours doesn't appear to be.

David