Wasps Nest

I seem to remember that the fire brigade will remove these.

I had a nest once and called a company from yellow pages but can no longer find the company name. I believe at that time fire brigade said they do not intervene, but you can try. Good luck.

Fire Brigade did ours 3-4 years back -- I went into a hardware store to get a "wasp bomb" -- they told me that in Belgium the Fire Brigade dealt with them -- Called them up and a few days later they came -- cost about €50

Fire brigade, they charge a nominal fee. However, as others have said, you can also buy insecticide at most garden centres. I've actually done both. The fire brigade as the nest was in the eaves of the house outside a bedroom window and I couldn't reach it, and a can of insecticide "exploding" foam specifically for wasps for a nest that was accessible from ground level in the shutters above my living room french doors.