To get rid of ants in a Sydney home for good, you need non-repellent bait that worker ants carry back to the nest. Spraying the trail you can see only kills the scouts. The colony keeps sending more. Professional ant control targets the source, not the trail. Priority Pest Services treats Sydney homes with non-repellent treatments that ants cannot detect, so they carry the active ingredient back to the queen and the colony dies.
- Killing the visible trail only removes scouts - the colony stays intact
- Non-repellent bait is carried back to the nest and removes the whole colony in 3 to 7 days
- Most ant callouts in Sydney are coastal brown ants or black ants
- A professional ant treatment for a standard home starts at $200
Why do ants keep coming back after I spray them?
Because the nest is still alive. A single ant colony can contain tens of thousands of workers, and the ones trailing across your bench are only a small fraction of the total. When you spray a surface spray, you kill the ants in front of you, but the colony reacts within hours. The queen lays more eggs, and new workers find a different entry point. This is why the trail moves from your kitchen to your bathroom a week later. The only way to stop ants for good is to eliminate the colony at the source.
What species of ants are most common in Sydney?
Sydney has dozens of ant species, but a handful cause almost all household problems. Correct identification matters because each species nests and forages differently, which changes the treatment.
| Ant species | Where they nest | Why they come inside |
|---|---|---|
| Coastal brown ant | In soil, under pavers and paths | Foraging for food and sweet liquids |
| Black house ant | In wall voids, roof voids and gardens | Following sweet food trails |
| Argentine ant | Large supercolonies in soil | Mass trails into kitchens and pantries |
| Bull ant | In soil in gardens and bushland | Defensive, stings if disturbed |
Coastal brown ants are the number one ant callout in Sydney. They thrive in sandy coastal soil from the Northern Beaches to the Eastern Suburbs, and their colonies can spread across multiple properties. Black ants are the second most common, particularly in older homes in the Inner West and on the North Shore where mature gardens provide shelter.
How do professionals get rid of ants?
Professional ant control works because it targets the colony, not the trail. We use a non-repellent treatment that ants cannot detect. They walk through it, pick it up on their bodies and legs, and carry it back to the nest. There it spreads through grooming and feeding, reaching the queen and the brood. The colony collapses from within.
- Inspect: We follow the trail back to the nest, entry points and the foraging routes the colony uses.
- Treat the nest: We apply non-repellent treatment directly to trails, nests and entry points where the colony travels.
- Perimeter spray: We treat the exterior of the home to stop new ants from the garden getting back in.
- Advise: We show you the entry points to seal and what to expect as the colony dies off over the next week.
"Surface sprays scatter the colony. Non-repellent treatments let ants carry the bait home and destroy the nest from the inside."
How long does it take for ants to go away?
You will see fewer ants within 2 to 3 days of a professional treatment. The colony usually collapses fully within 7 days. It is normal to see a brief increase in ant activity for the first day or two, as the treatment draws workers out of the nest before it kills them. By the end of the first week, the trail should be gone. Ant treatment is covered by our 6-Month Warranty* on internal infestations. See our ant control service.
| Method | Kills the trail | Kills the colony | Time to results |
|---|---|---|---|
| Supermarket surface spray | Yes (temporary) | No | Immediate, returns in days |
| Natural repellents (vinegar, peppermint) | Deterrs only | No | Hours, then returns |
| Professional non-repellent | Yes | Yes | 3 to 7 days |
Key tips to keep ants out of your home
- Wipe down benches nightly and store food in sealed containers - ants follow scent trails left by spills.
- Fix leaking taps and dry the sink - ants need water as much as food, especially in summer.
- Seal gaps around pipes and windows where coastal brown ants and black ants enter.
- Keep pet bowls clean and lift them off the floor at night - pet food is a major ant attractant.
- Move garden mulch away from walls - mulch holds moisture and shelters ant nests.
- Book a general pest treatment every 6 to 12 months to maintain a protective barrier.
Ants keep coming back? We remove the colony, not the trail.
Priority Pest Services uses non-repellent treatments that ants carry back to the nest, removing the whole colony in 3 to 7 days. Ant control starts at $200 for a standard Sydney home and carries a 6-Month Warranty*. Call us or request a free quote online today.
Frequently Asked Questions
How much does professional ant control cost in Sydney?
A professional ant treatment for a standard Sydney home starts at $200. This covers interior and exterior treatment and includes our 6-Month Warranty* on internal ant activity.
Is ant treatment safe for my kids and pets?
Yes. Keep pets and children away from treated areas until the spray dries, which takes about 2 hours. Once dry, the product binds to the surface and will not transfer to paws or hands.
Will the ants come back after treatment?
The treated colony will not recover. New colonies can establish themselves over time, which is why we recommend a general pest treatment every 6 to 12 months to maintain the barrier.
Do you treat ant nests in the garden?
Yes. We treat garden nests, nests under pavers and wall void nests. Coastal brown ant colonies often spread across multiple nesting sites, so we treat the whole foraging network, not just the nest you can see.
How do I stop ants getting into my kitchen?
Seal gaps around pipes and windows, store food in sealed containers, wipe down benches nightly and fix any leaks. Ants follow scent trails, so removing the food and water source makes your kitchen far less attractive.