Just a warning to people.
We have had 5.8m aluminium Origin bifolds professionally fitted about 3 years ago at a cost of nearly 10K.
Untold issues; weather getting in, condensation on threshold, expansion issues, cells failing, blinds in the cell problems. Weather seals shrinking. Sales guys didn’t tell us it takes 3 months to get replacement blinds.
We have had 3 different issues with replacement blinds so that’s 3 x 3 months and the issue is still not fixed. Just utterly totally completely regret going with our fitter ( think Adam and Eve) and with our choice of bifold manufacturer. Terrible customer service and mediocre product.