Wasps and Hornets
Wasps usually occupy holes in and around houses- particularly in loft and shed areas.
It is important to look out for a live entry hole and lots of wasp activity. These signs can indicate the site of a potential nest.
Once a nest is established it will continue to grow.
At the end of the season, if left alone- most of the wasps will die off. However, any surviving queens will build nests nearby next year, so the problem is likely to get worse if left untreated.
These pests not only cause discomfort... They also damage property, especially structural damage by chewing through wood and plasterboard.