How can I fix a broken external window still? ?

Repair it if you can... Follow this link...

http://www.countyconchem.co.uk/OLDSITE/index.html#Nelson

...and navigate to:

"Saving A Victorian Bay Window On A Grade II Listed Building"

and

"TYPICAL 1930's BAY WINDOWED SEMI-DETACHED HOUSE"

The stuff is a bit expensive but far cheaper than installing replacements. I spent about £300 restoring all the cills and windows (36 lights with 12 opening) on the front of my 1930s semi and saved thousands.

Peccavi
December 2008