Slideandfold.co.uk or Grabex - Aluminium doors

[zazzi]

Does anyone have any experience with these companies?

Slideandfold much cheaper but not sure of their quality.

I've used Grabex for my double glazing in the rear of my house (2 bed terrace) and this included garden doors and frames. They were good, very efficient and tidy when working and fitting the glazing. Also no hidden costs, the price we were quoted was what we paid. Hope that helps.