Why Shared Houses Get Ants
Ants do not care who left the pan out. A foraging worker that finds sugar lays a scent line home, and within a day hundreds are following it. In a shared kitchen there is nearly always something on offer: a cereal bowl on the side, an open jar of spread, a sticky bottle in the recycling, crumbs behind the toaster.
Busy houses near the university, around Earley and elsewhere, also change hands every summer. A house that sat quiet over the holidays can have a strong trail established by the time everyone arrives in September, and a new group has no idea it was ever a problem.
A House Agreement That Works
The single biggest difference is getting everybody to do the same few things. It helps to agree them out loud, or stick a list on the fridge:
- nothing sweet left out overnight — jars, honey, jam and fizzy drinks go in a sealed box or the fridge
- dishes washed or at least rinsed the evening they are used
- worktops wiped with washing-up liquid, not just a dry cloth, because detergent removes the scent trail
- cans and bottles rinsed before they go in the recycling
- the kitchen bin kept lidded and emptied before it overflows
- anyone with a hamster, rabbit or other pet keeps its food sealed
The one thing that matters most: one person leaving sugar out undoes everyone else. Ants only need a single open jar to keep the trail alive, so the agreement has to cover the whole house, every night.
Tell the Landlord or Agent
If ants keep coming back despite a clean kitchen, report it to the landlord or letting agent in writing, with dates and photos of where they come in. Whether the landlord pays depends on the tenancy agreement and on the cause, and we are pest controllers rather than legal advisers. Our guide for landlords covers their side, and the rented homes page goes further into who deals with what.
We are happy to speak to the agent directly and invoice whoever is paying. Ant control is a fixed £240 — confirmed before anything is booked, with the treatment explained first.
What Treatment Involves in a Shared Kitchen
Usually gel bait placed into cracks along the worktop edges, behind units and at the entry point, out of reach, with a residual insecticide on the outside wall base where the ants cross. You may see more ants for a few days as foragers pick the bait up.
This is where a shared house tends to go wrong. Somebody sees ants on the bait, sprays them or wipes the whole area with bleach, and the treatment is lost. Tell every housemate not to clean or spray the treated spots for the period you are told.
When booking, mention anyone in the house who is pregnant or has asthma, any pets or fish tanks, and anyone vulnerable. Keep off treated areas until they are dry and follow what you are told on the day.