We have a flat in North London (irrelevant where it is really) which has its original 1960s metal framed windows still. We've been meaning to replace them for years but have never managed to find what I would call suitable replacements. We have (a little) more money now so we're having another look at the problem.
So, where can one get replacement windows which have similarly 'lightweight/narrow' frames to what we have at present? There are two lots of windows, downstairs (it's a duplex flat) there's a french window with adjacent floor to ceiling glazine, upstairs there's tall windows with centrally pivoted opening sections and opaque safety glass at the bottom.
Ideally we'd like the replacemnts to look like the originals but anything with minimal/narrow glazing bars would be acceptable. Price is an issue, we don't want to spend tens of thousands.