I live in a dormer property with easy access in the large attic areas within our roof area for wasps to get in. I am happy to sort these problems myself and felt that purchassing a bee keepers type hat would be sensible as well as a suitable wasp spray. I located the wasp nest and have been able to spray the nest with Protector Natural Aerosol spray. I applied one treatment, returned the next day and applied a second spray treatment and a couple of days later was able to access the area and make good the loft felt that had split allowing the wasps to enter through the roof tiles. Thus my rating of 5 stars. I could remove the wasp nest now but have decided that as it is now inactive I will ait until the winter to be absolutly sure that the nest is completly empty.