Our uPVC bedroom window no longer opens. It's not the handle that's at fault, it's the gearbox. The trouble is, we can't get the window open to replace the gearbox. We've been told the whole double window (i.e. including the half that isn't supposed to open) will need to be replaced.
The difficulty with that solution is the cost: £1,200. The reason for the high price is that there's a large conservatory directly below the window, preventing access without the use of scaffolding (and I'm not even sure they could erect scaffolding easily/at all because of other obstructions).
Does anyone have any suggestions as to how we can fix it, please?