Why are ants suddenly coming into my house?
Ants usually follow food, water, or a seasonal route through small gaps; identifying the trail and moisture source is more useful than spraying randomly.
Urgency: moderate
What this means
Clean food residue, store food securely, fix accessible moisture, and observe the entry route.
Safe checks
- Wipe trails with soapy water
- empty indoor bins
- inspect around pipes, windows, doors, and damp wood
- seal suitable small gaps.
Stop and get help if
- Use professional identification for carpenter ants, structural wood damage, persistent colonies, or pesticide use around children or pets.
Which professional to call
Contact the matched licensed or qualified trade if safe checks do not resolve the issue.
Find the relevant tradeSource and method
This answer combines HomeSOS's structured triage with safety boundaries supported by a public source. It does not replace inspection.
Health Canada: Home safety and indoor air guidanceReviewed August 12, 2026