A trail leads two ways
Each ant that repeats the same trip strengthens the scent trail for those behind it, which is why an ignored line only seems to get busier - the same pattern holds near Chislehurst, where housing set against woodland and commons. Cleaning a trail off just means a new one gets laid, tracing it back is what actually reveals the colony, as anyone near Beckenham will recognise, where broad tree-lined 1930s suburbia.
Locating the entry point
Pick a warm, settled part of the day when activity peaks, and watch the line as it runs away from wherever the food was found. A back-door threshold, a gap around pipework, or the edge of a patio door frame are the most common entry points across Bromley's suburban houses.
The borough's suburban gardens
Right across Beckenham, Orpington and West Wickham's 1930s semis, a patio built up against a rear extension gives a colony exactly the warm, dry conditions it favours. The nest doesn't have to be close to the house either - the joints in older paving further down the garden, or the base of a garden wall, can still send a trail the whole way indoors.
What to leave alone for now
- Spraying the visible trail, which kills foragers and leaves the colony untouched
- Pouring boiling water into paving, which can crack mortar and rarely reaches the queen
- Filling the entry gap before the nest itself has been treated
- Scattering loose powder along the trail, which can split one colony into several
Sealing the gap afterwards
With the colony dealt with, go back and close only the gap the ants were actually using, a threshold, pipe hole, or crack in old mortar, true near Penge too, where denser Victorian terraces on the borough's northern edge. Keep weep holes and air bricks open, blocking them as well only creates a damp problem inside the wall, true near Chislehurst too, where housing set against woodland and commons.
Booking ant control in Bromley
Ant control in Bromley runs £190 for a flat and £220 for a house, and because around West Wickham, where suburban streets close to the Surrey and Kent boundary, it helps to say roughly whereabouts in the garden the nest might be when you book ant control, with the rest on the Bromley ant control page.
