Was I being outrageously optimistic to think we could replace our conservatory roof without it bankrupting us?
We have a UPVC conservatory, and want to replace the polycarbonate roof with a glass one, to reduce rain noise and keep out the sun / keep in heat (a bit). I'm fully aware a "proper" extension would give us a better solution, so let's not go there (we've had enough of architects and builders to last us a lifetime recently!).
So, the roof is a simple gable roof, dimensions:
Length: 5m
Width: 3.5m
Height of roof above top of window frames: 1.2m
Total of 14 panes of glass (7 down each side).
The price includes a fan and light combo in the middle of the roof. It's only the roof, none of the rest of the conservatory is changing. We have asked for solar control glass; they've specified "Eco-Lite Activ-Blue" whatever that might be, U-value of 1.0 which is what we wanted.
Total price for the roof? £14k 
I was kind of thinking that would be most of the way to a whole conservatory... Am I wrong? Am I supposed to haggle them down to, say, half of what they've quoted? Maybe getting a proper brick-built extension wouldn't be such a bad idea after all...