I'd assume the sourcing company pay the architect from the commision they get from the window company for supplying the lead?
Just to update, we have negotiated £400 off the cost of the windows. I certainly could have pushed for more, however, I was never in it to squeeze money out of he company, just to get reasonable compensation for a mistake that would have been much more costly to rectify.
Now to get on with the kitchen refurb!
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