Saw this wasp on my fence and seemed to be scraping the wood off and flying with it. Presumably to make his nest.
No identification made yet.
No interactions present.
But I think it might be a Dolichovespula. You could view the images on the excellent BWARS site -
Where you will see the various species. The face markings are often the most distinctive, I think.
You're right about what it is doing.
... except that it is HER nest.
Lat/Lng: 51.398888888889, -3.3155555555556
OS grid ref: ST085674