Why the Nest Is Worth Finding
Every ant walking across the worktop is a sterile worker. The queen that lays the eggs never leaves the nest, so however many workers you wipe up, more come out tomorrow. Knowing where that nest sits is what turns an endless tidy-up into something that can actually be dealt with.
It also changes the treatment. Bait placed on a route the ants really use gets carried home; a residual product applied at the true entrance meets every forager going in and out. Treatment placed a few feet off the real line does very little.
Walking the Trail Back, Step by Step
Choose a warm, dry afternoon, when foraging is at its busiest. Do not wipe or spray the trail beforehand — you need the ants to keep walking it.
- Start where you see the most ants indoors and watch which way the ones carrying crumbs are heading. Laden workers are going home.
- Follow them along the skirting, the edge of the lino or the back of the units. Ants prefer edges, so the line hugs corners.
- Note the point where they disappear: a gap under the back door sill, a crack beside a pipe, the joint between floor and wall.
- Go outside to the same point on the other side of the wall and look for ants arriving or leaving there.
- Follow the outdoor line across the patio or along the wall base. It may run a surprising distance before it stops.
- Where it ends, look for fine, loose soil between slabs, at the foot of the wall, or at the edge of a border. That is usually an entrance.
The one thing that helps most: put a small blob of jam or honey on a saucer beside the indoor trail and come back a little later. A busy saucer gives you a strong, easy line to follow outside. Take the saucer away once you have what you need.
When the Trail Goes Cold
Sometimes the line vanishes into the house rather than out of it: under the kitchen floor, behind a kick board, into the wall. That points to a nest in a void, which is a different search and is covered on our page about ants in walls and under floors.
Other times there is more than one line. Two trails that head in different directions from the same room usually mean two nests, and it is worth mapping both. The general clues for spotting an entrance, from soil heaps to lawn mounds, are gathered in our article on how to find an ant nest.
In a village like Twyford, with gardens backing onto gardens, if the line crosses a fence or goes under a shared wall, stop there. The nest may be next door, and that is worth knowing before anybody treats anything on your side.
What to Do Once You Have Found It
Resist the urge to pour boiling water in or give it a burst of spray. Either kills the ants near the surface and leaves the queen untouched, and a disturbed nest can shift its foragers onto a new route you have not mapped.
Instead, mark the spot with a pebble, take a photograph of the indoor and outdoor ends of the trail, and give us a ring. Ant control is a fixed £240, confirmed before anything is booked, and what the treatment involves is explained to you before you commit. The mechanics of what we then do are set out in how professional ant treatment works.
Tell us at booking about children, pets, fish tanks and anyone vulnerable in the house, so the products and where they go can be planned around them. Treated areas are kept clear until dry, as you are told on the day.