We - when I refer to we it's me and three neighbours that share the entrance to our drive - got our full drive block paved a couple of months ago I noticed and originally challenge the guys doing the work that some of the grey blocks were slightly darker than the rest. See picture. They assured me that the slightly darker ones arrived wet and would eventually dry out. A couple of months later and they look the same and haven't "dried out" as they said. So I presume they were either a bad batch or the wrong ones were delivered. I'm not massively happy about it because 90% of the dark blocks are on the part of the drive we own which makes it looks like we got it done at a different time. When really we all came together to get it done at the same time so it didn't look like a mishmash. Is it unreasonable for me to contact them? Is it easy to take up a section of block paving and relay?
Block paving colour is usually very consistent, not like that, so I think your presumption is correct. Can you access the delivery notes, or get manufacturers catalogue to compare different colours.
I didn’t see any delivery notes. It’s pretty complicated due to being partly shared. The guy with the van sort of managed it all but I have contact details and have spoken to the guy that completed the work. All I know is he used Lords as the builder merchant