How to get rid of ants in San Diego County
Ants show up in San Diego kitchens and bathrooms almost year round because our mild winters never force a hard die-off. A single scented crumb or a damp patch under a sink is enough to pull a trail of them inside.
What you're dealing with
Argentine ants dominate San Diego County, forming huge interconnected colonies, with odorous house ants and pavement ants also common around foundations.
How to get rid of ants: step by step
- Trace the trail back to the entry pointFollow the line of ants to the crack, gap, or door threshold they are using and mark it before you clean anything up.
- Wipe the trail with soap and waterAnts follow a scent path, so breaking it with a soapy wipe-down slows the next wave while you find the real fix.
- Seal the entry points you foundCaulk gaps around pipes, window frames, and foundation cracks. Argentine ants can use openings smaller than a dime.
- Cut off food and moisture sourcesStore sugar, pet food, and produce in sealed containers, and fix any dripping faucets or damp areas under sinks.
- Use bait stations, not spray, near the trailSlow-acting bait gets carried back to the colony. Sprays just scatter the trail and can split one colony into several.
When to call a pro
If bait stations have not slowed the trail after two weeks, or you are finding ants in multiple rooms at once, the colony is bigger than a DIY approach can handle. A one-time treatment for ants at Pest Pros San Diego runs $149-$249, or $89-$149 per visit on a quarterly plan that keeps them from coming back.
Check ants cost, or read the signs of ants first.
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Common questions
Why do I keep seeing ants in my San Diego County kitchen even after I clean up?
The scent trail survives normal cleaning. Wipe with soap and water specifically, then seal the entry point, or the same trail keeps getting used.
Do ants in San Diego go away in winter?
Rarely. Our mild winters let Argentine ant colonies stay active year round, which is why they are one of the most common calls we get in every season.
Is store-bought ant spray a waste of money?
Spray kills the ants you can see but often splits the colony into several smaller ones. Bait that gets carried back to the nest works better long term.
Want ants gone for good?
Call for a free inspection and a flat-rate quote across San Diego County.