Good quality composite doors are what these days? a grand? I'd want a new one
The Doors arent that much, but including fitting it is going to be that.
I installed a composite door for a friend some years ago (It was an emergency, IE Door company could supply the door within 3 days but couldn't install it for several weeks and she needed it
NOW This wasn't a stampy foot thing either. Her old door had warped/dropped and she couldn't reliably close it)
If anybody is considering doing this for themselves and has not done anything like this before. Here is a warning for you.
(Like I hadn't, talk about steep learning curve!
Mostly when I try something new, I take my time to work out what I am doing and get it right. but a front door
has to be done in one day! and though the result is satisfactory. It is not as good as I would have liked
)
The doors are sold enough, but the frames are
really flimsy and will distort all over the place if you treat them like wood. You cannot screw them into place as you would with a timber frame. you need to wedge it up and then, very gently, use the big masonry fixings to hold it in place.
Also didnt help that my friends house is a modern one. IE only the outer leaf was brick. The rest is made of cardboard so once I had removed the old door, there was nothing left to attach the new door to.
(The old door had been located with thin metal strips attached to the studs on the inner wall. and the gap just filled with a plaster skim.
Horrid construction really. Not surprised that the door/frame had warped and the whole thing shook every time she shut the door
)
The 1800mm spirit level/straight edge is your friend!
In fact, I'd stick with a good quality wooden one and pay a decorator every couple of years to paint it
Which is what I said earlier,
Though it would be nice to be able to fit a modern multi-latch lock into a sold timber door. Can this be done?