How to Get Rid of Ants in the House and Stop Them Coming Back

A few ants on a worktop may be scouts from a colony outside, or they may be part of a nest within a wall, floor void or warm part of the building. Wiping away the visible trail helps temporarily, but lasting control depends on the species, nest location and food source.

Why ants come indoors

Workers enter in search of sugary food, grease, protein or water. Kitchens are common, but trails can also develop around bathrooms, boilers, pet bowls, houseplants and cracks near windows or doors.

Step-by-step: what to do first

1. Photograph the ants for identification.
2. Follow the trail to its entry point without disturbing it immediately.
3. Clean food residue and store opened products securely.
4. Dry sinks and repair small leaks.
5. Clean the trail with ordinary detergent after observing the route.
6. Seal obvious external gaps once activity is under control.

Why killing visible ants is not enough

The ants you see are workers. The colony and queen may remain protected elsewhere, so contact sprays can provide a short-lived improvement without affecting the source. Some species may also split or redirect their activity when disturbed.

Common ant entry points

• Gaps below doors and around frames.
• Cracks in pointing or paving.
• Pipe and cable penetrations.
• Window edges and air vents.
• Wall or floor voids in warm buildings.

When professional ant control is sensible

Arrange help when trails return after cleaning, activity appears from several points, ants are present in a commercial kitchen, or identification is uncertain. Treatment selected for the wrong species or placed where children and pets can reach it creates unnecessary risk.

How to prevent ants returning

Maintain clean food-storage areas, rinse recycling, keep pet bowls clean, repair leaks, trim vegetation touching the building and close verified gaps. External nests may continue sending scouts, so prevention is an ongoing property-maintenance task.

Frequently asked questions