Our thanks to one of our customers who provided this response:
"I've been through all this three years ago!
We didn't choose wooden doors for the reason given above (we'd had wooden in our previous house) so we compared pvc with aluminium and there was no comparison! Aluminium won hands down in all areas except price.
The frames are stronger and much narrower so that you are looking through the glass rather than at an ugly plastic frame, and they come in a range of colours (in the end we played safe and opted for white).
Following a demonstration of doors and blinds at a SunSeeker Doors installation, we felt confident enough to spend the extra on integral blinds inside the glass. They come with a guarantee but because there is no strain placed on the blinds' mechanism when it is being opened, closed, etc., there's little chance of it going wrong.
That was three years ago and (touch wood - oh no, I can't, I opted for metal!) the blinds have worked perfectly and we have had absolutely no problems sliding and folding the doors.
I don't like curtains and all the vertical blinds we've ever had have gone wrong so every window has slatted venetians but only the bifolding doors have them inside and all the other blinds in the house are dusty! (and a couple of them have gone wonky with boys - includes husband - tugging at them but this isn't a problem with the integral blinds).
I don't know which area you live but it might be worth checking www.sunseekerdoors.co.uk as I can recommend them. They measure up and manufacture to order, in England, so they can install quite quickly too (this service is in the price).
I hope that helps."
Please take a look at our bifolding doors, integral blinds and NEW frameless glass doors.