Follow, don't wipe
Every ant that completes the round trip to food and back reinforces the scent trail for the next one, which is why a line seems to grow busier the longer it's ignored. A clean worktop just means the trail starts over, the colony sending it out is unaffected - the same pattern holds near Putney, where riverside mansion blocks and Victorian terraces climbing up from the Thames.
Patio edges in Earlsfield and Balham
The small terraced gardens typical of Earlsfield and Balham put a patio or path within a few feet of the back door, giving a colony warm, dry conditions close to the kitchen. Watch on a warm, still afternoon and mark - rather than wipe away - wherever the line enters the room.
Old sash windows across the borough
Wandsworth's Victorian terraces still hold plenty of original sash windows, and the gaps around a worn frame or sill are a common entry point that's easy to miss, since the trail can look like it starts at the worktop rather than the window.
What to leave alone for now
- Spraying the trail, which kills the foragers and leaves the colony intact
- Pouring boiling water into paving, which rarely reaches the queen and can crack the slab
- Sealing the entry gap before the colony is dealt with, which sends ants to find a new one
- Scattering powders along the trail, which can split a colony into several smaller ones
Closing the way in afterwards
Once the colony's gone, seal just the specific gap the ants used, but leave air bricks and weep holes open, sealing those traps damp inside the wall, much as it does near Battersea, where converted warehouses and newer riverside towers sit among Victorian terraces.
Booking ant control in Wandsworth
Ant control in Wandsworth runs £190 for a flat and £220 for a house, and because around Earlsfield, where victorian terraces between Wandsworth and Tooting, it helps to say roughly whereabouts in the garden the nest might be when you book ant control, with the rest on the Wandsworth ant control page.
