I need to expand a bit on my answer above:
The waspy looking insect is a cuckoo bee in the Genus Nomada; and although the picture is a little fuzzy it is still possible to say that this is most probably Nomada marshamella, a species usually (but not exclusively) associated with nests of A. carantonica.
Andrena and Nomada bees do possess a sting BUT (and I have tested this on myself with both of these species), the sting itself is too feeble to penetrate human skin, and so they present virtually zero threat to you, or to children or pets
Any so-called pest control expert who tells you that bees don't nest in the ground is a galloon. Of the 250-odd bee species we have in UK, about 150 species are ground nesters. It is by far the most common nesting trait among British bees. I suspect the Pest folks assume that we only have one bee species "The Bee" which is, of course, the Honeybee (Apis mellifera). Honeybees nest in natural cavities above ground
