Owning your own home

I went with Maxlight but was looking at them, 1st Sliding doors, IQ Glass and Slimline.

From what I could gather most the products were made of the same parts so not sure why prices varied so much. There was another one but they were really high end (despite looking the same) and came back with a quote of 20K plus for doors smaller than yours.

Have you considered sliding instead? Its quite a large area and the frames on sliding doors are way smaller which gives more light/open feel plus there is less to go wrong.

(Maxlight and IQ Glass have showrooms nearish London).

We have a four metre bifold door put in our kitchen and used these guys:

https://www.capitalglass.net/#

I don't know if they have a showroom. I can't remember the exact cost, but they were very attractive relative to the one showroom that we visited in London (ODC glass in Chiswick).

From repairing doors and windows. I think bifold doors need to be done by a place that specialises in them or at least does them fairly often.

When they are new and perfectly set up, I think they look good. However a bit of wear and going out of adjustment multiplied across 4 to 6 leaves, usually means they are shit.

Aluminium frames are a must (imo) as pvc isn't stiff enough and the mounting holes are more likely to elongate and go out of adjustment.

Spares are kinda pricey and they seem to be going obsolete quite quickly. If the rollers need replacing on the master leaf, you may have to remove all the leaves first to get them out of the tracks.

Personality I'd go for double sliding (fixed, slide | slide, fixed) or French doors with two fixed panes.

Does anyone know a good bifold company with a showroom in or around London?

We have Schüco and are very happy with them. German-made, showroom in Angel.