It amazes how some you make out that it's such a big job, full valet, back breaking labour..... Just to justify charging ridiculous prices.
Let's put it in to perspective, that conservatory is not that big, from the pictures it is not that dirty.
I would do the lot in approx 3 1/2 hours and happily take £170 for it and most likely get repeat custom. Yes Papa smurf that's a full valet, I.e iv cleaned the sh!t out of it.
Smurf do you go all Thomas Sanderson on it, hand polishing all the whites? Greasing up hinges? Cleaning all the openers? Treating the glass?
Didn't think so, you clean it no differently to anyone else here...