Monitoring is key if you want to avoid problems with bees and wasps, especially if you know the area you are occupying has this pest problem. It is always easier to prevent a problem before it happens, rather than to wait for them to invade your home or garden.
Although high numbers of bees or wasps in your home or garden almost certainly means there is a nest nearby, getting rid of a hive/nest may not always be a possible solution. If the hive/ nest is not on your property, you will have very limited control on what you can do to remove it. Nests located in confined, hard-to-reach areas (such as cavity walls) will also be more difficult to treat.