Man at B&Q wrote:
On Jun 9, 7:28 pm, "Roger Mills" wrote:

Most recent aluminium doors come with frames which are designed to fix
straight to brickwork - but previously (20 years ago?) they invariably had
(and needed) hardwood frames between the bricks and the aluminium. How old
is the door which you have acquired?

Wickes still sell aluminium doors with thin frames that need a wooden
frame.

MBQ

The guy that came to quote reckons it needs hardwood, but only to fill
the gaps at the sides i.e. not a frame as such. £150 plus materials.
Worth that just to avoid the d-i-y scenario whereby it's supper time and
we still don't have a working back door.