Hi all

Wanted to try to understand something here before I call the builder back.
Trying to avoid DIY on this occasion!
We had uPVC french doors fitted as part of a refurb earlier this year.
After a short period, one of the doors started to catch at the bottom.
The guy who fitted them, who turned out to be an obnoxious git sub'd in by
the builder, adjusted hinges etc to resolve the problem.
Plenty of slamming of doors and generally off-hand behaviour sufficient to
upset er indoors!
A few months later, the door has "dropped" again and is catching!

My understanding of this heel-and-toe business is that it is a re-packing of
the glazing unit in the door frame, when the frame is out of square (by door
frame I mean the glazing suround for each moving opener, as opposed to the
fixed outer casing).
So you may get a situation where the individual door frame has
parallelogrammed so far out that it is impossible to achieve the clearance
needed around the door and this re-packing excercise is necessary.

Surely once the door has been set up such that it will open and close
correctly, any further displacement must either be failing hinges or
movement of the outer door casing itself due to lack of fixings?

Anyone clarify this for me please?

TIA

Phil