I get these sort of wasps (or the US version) often as I have a big covered porch. My technique is to wait for a cold morning (around 40-50 deg F, or under about 10 deg C if my conversion is correct) because they can't fly when they are cold. Using a stick or broom or whatever knock the nest into a bucket of soapy water. If the weather is too warm where you are use a long stick or a squirt from the hose to knock them down and be ready to run.
here are the kind I get: (not as good a shot as yours
)
whatever you do, don't jab your thumb blindly into the middle on a hot sunny day.
I found a nest once this way
hope this helps!