If your requirement is for either of these Grosvenor can build you exactly what you are looking for. If you want a upvc structure it’s not our subject, but we have incorporated upvc doors and windows into other structures where appropriate. If your thoughts lean toward the quality of an Alitex product (one of our partners), or a combination of masonry, timber and aluminium glazing units. Something which has the style of classic lantern lights, or glazed roof panels and windows sitting above a masonry wall. Something with timber or aluminium mullions or is a hybrid of a conservatory and a room, or maybe an oak frame which is glazed externally in anodised aluminium, then we are the people to speak to.