@ junek

Wait...What? "...we never quote with paint..."
"...along with the prices and quantities needed..."

Which is it? I've always had the quote broken down as you describe in your second statement labour + paint requirement, with it your choice on which paint to go with. Which as far as I'm concerned is exactly what Edgar is demonstrating here, a variation from the accepted practice. If the ad had said 899 labour rate for painting then it would be fine.