Record observations without disturbing insects
Note the surfaces and rooms where ants appear. Explain whether they return to the same location and whether they are visible outside too. A clear photo may help describe their size and appearance without handling them.
Explain what has changed
Accessible food, a damp area or recent work may be useful to mention. They do not prove the cause of the problem. Separate observed facts from assumptions in your request.
Confirm what comes next
Ask for identification and an assessment of the area before agreeing on a method. Mention products already used and the presence of pets or children. Clarify prevention measures and how changes in observations should be monitored.
Further reading: Public pest-control guidance (new tab)
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