Budding splits the colony
Species with many queens, such as Argentine ants and several house ants, respond to a repellent spray by relocating. A few hundred workers and a queen move to a new spot, and you now have two colonies instead of one.
Ant Control in Gordon 2072 — local technicians, fixed prices and a written report. Ant treatment starts from $89.
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What we cover in Gordon, and how quickly we can get there.
Postcode 2072 covers Gordon and the streets immediately around it. At about 13.6 km north of the CBD it falls in the Upper North Shore, where we have vans out daily. We run Gordon on a regular route, and same-day attendance is usually available.
If you are near Dumaresq Street Park, Ku-ring-gai Flying Fox Reserve or East Killara Shopping Centre, that is ground we cover constantly - it is the busiest part of Gordon for us.
Ku-ring-gai and Hornsby is the council area for Gordon, and we treat Pymble, Killara and East Killara on the same schedule. With bushland close by there is constant pressure from outside, so the perimeter and the fence line get as much attention as the house.
Around Gordon the pattern is fairly consistent: houses backing onto a reserve, where the pressure is constant from outside. Tell us which it is on the phone and we will come prepared for it.
Our Gordon runs also take in Gordon Golf Club and the area near Gordon station, so the whole postcode is served.
We confirm your slot the day before and arrive at a stated time. Pymble and Killara sit on the same run, so earlier appointments in 2072 come up regularly.
Pharaoh and some other small species nest indoors in warm voids and never go outside at all. In a Gordon house that changes the treatment completely - and makes spraying actively harmful, because it buds the colony.
Where we find ants in a Gordon wall or frame, we look for the water first. Fix the leak and the timber dries; leave it and another colony will use the same cavity.
Several of the species we treat around Gordon are polydomous - one colony spread across many nests. Treating the nest you found leaves the rest of it working, which is why we look for the extent before we choose a product.
Each of these behaves differently, so the bait and the placement change too. Two photos come from our own jobs.

A small black ant with a glossy body, and the one most often in Sydney kitchens. It nests in wall cavities, the roof void and garden edges, trails along skirtings and cabling, and feeds readily on sweet bait.

Tiny brown ants with a larger-headed soldier caste. The giveaway is loose sandy soil pushed up between pavers, along slab edges and in grout. Colonies are large with many nests, and oil-based granular baits work well.

Dull brown, small, and noticeable for the thickness and speed of its trails. Multi-queen nests connect to neighbouring ones, which is how an infestation covers several properties. Repellents make it markedly worse.

Large and mostly nocturnal, nesting in soil, hollow trees and damp or softened timber. They rarely damage structure here, though a nest inside a wall is a reliable sign of moisture that needs attention.

Photo from an Elite job: an ant nest emerging from a mortar joint. Weep holes and cracked mortar lead straight into the wall cavity, which is where many black house ant colonies live.

Gel bait on a working trail, from one of our jobs. Ants feed and carry it to the nest, so wiping or spraying the trail afterwards undoes the treatment.
Where ants appear usually tells us where the nest is and which species we are dealing with.
A trail coming in from the external wall normally means a nest in the cavity or at the garden edge, and that entry point is where the tracing begins.
If fine soil keeps appearing in the paving joints and along the drive, coastal brown ants are nesting beneath it.
Warmth is what draws them into switches and electrical fittings. Never spray into a power point - tell us instead and we will treat it safely.
Swarming winged ants in spring or summer are a mating flight. Seen inside the house, it often means the colony is mature and in the building.
Trails in the bathroom point to water in the wall or a slow leak the ants have found.
Bull and jumper ants live in lawn and garden-bed nests. The sting hurts, and for some people it brings on a serious allergic reaction.
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Species with many queens, such as Argentine ants and several house ants, respond to a repellent spray by relocating. A few hundred workers and a queen move to a new spot, and you now have two colonies instead of one.
Ants can detect a supermarket spray and will simply route around it. A professional non-repellent is undetectable, so they walk through it and carry the active home to the colony.
Ants will ignore bait that does not suit their current needs. Because they alternate between sugar and protein depending on the brood, we test preference rather than assume.
A bait program works over days. The worst thing you can do is spray the trail once we have gone - those ants are the delivery system. See our blog on budding in more detail.
Tracing first, then baits and non-repellent products that do the work after we leave.
First the species, then the trails - followed back to where they enter and to nests in the wall, under paving, at garden edges or in the roof space.
Sweet, protein and oil-based baits are offered in small amounts so the colony shows us its current preference.
We run gel along the active trails, window frames and skirting, keeping every placement out of reach of children and animals.
A non-repellent band around the footings, weep holes, door frames and paths catches ants as they come in.
Granular bait, or direct nest treatment, for the coastal brown ant nests under paving and at lawn edges.
You get a summary, advice on what not to spray, and a 6-month warranty on the general treatment.
The same bait does not suit every ant. This is how we choose.
| Species | Usually feeding on | Treatment approach | Common mistake |
|---|---|---|---|
| Black house ant | Sugars and honeydew, turning to protein while brood is being raised | Sweet gel on the trails themselves, with a non-repellent at weep holes and frames | Cleaning the trail off every day, which just sends them foraging somewhere else |
| Coastal brown ant | Protein and oils | Oil-based granular bait on paving and lawn edges | Pouring boiling water or insecticide into one pile while dozens of nests remain |
| Argentine ant | Mainly sugars, protein at some points in the cycle | Slow-acting bait with a non-repellent treatment right across the boundary | Spraying a repellent barrier, which causes a multi-queen nest to bud |
| Sugar ants (Camponotus) | Insects and sweet foods, taken mainly at night | A night inspection of the trails, bait near the nest, and moisture in timber repaired | Daytime-only treatment, which misses them entirely |
| Bull ants and jumper ants | Insects and nectar outdoors | Direct nest treatment in lawns and garden beds | Digging into the nest by hand and getting stung |
| Time of year | What is happening | What to watch for |
|---|---|---|
| Early spring (Sept to Oct) | Colonies become active and start on brood, which shifts them onto protein | Early indoor trails, and sand piles returning to the paving |
| Late spring to summer (Nov to Feb) | The busiest foraging period, with mating flights after warm humid weather | Winged ants on the wing, and thick trails after a storm or a hot spell |
| Autumn (Mar to May) | Colonies peak in size and stock up for the cooler months | Trails into the pantry and around pet bowls |
| Winter (Jun to Aug) | Outdoor foraging slows right down while nests in heated walls continue | Ants showing up by heaters, hot water services and in kitchens |
Most failed ant treatments come down to what happens in the week after.
Food premises need bait placement that will not contaminate, and records of what was used where. That is a different job from a domestic callout.
Nests under paving are sheltered, warm and almost impossible to flood out. They need bait placed at the active entrances, not a hose.
A branch touching the roof is a bridge. Mulch banked against brickwork is harbourage. Most of what brings ants inside a Gordon home is in the garden immediately around it.
Trails lead somewhere, so we follow them to the colony instead of spraying the sighting.
Baits are matched to the species and the season rather than used as a default.
Non-repellent products that foragers carry home, instead of sprays that scatter the colony.
If ants return within 6 months of a general treatment, we return at no charge.
Everything you need to know before you book. Still unsure? Call us — we're happy to help.
Get a Free QuoteAnt treatment starts from $89. Two things move it: how big the place is, and how far it has already spread. We work that out on the phone or on site and tell you the figure before anything starts in Gordon. Every general treatment carries a 6-month warranty.
Same-day attendance is usually available. Gordon is about 13.6 km north of the CBD in the Upper North Shore, and we give you a firm arrival time rather than an all-day window.
Where bushland adjoins the block, the question is not how ants got in but how often. The perimeter is what decides that.
Mostly detached housing backing onto reserve. Proofing and the perimeter are what actually hold here.
We do all of those. A good share of the Gordon jobs we run are tenanted or strata properties, so the written record comes as standard.
Yes. Everything we use is registered for the purpose and applied at label rates, and we place product where people and animals do not go. Tell us about pets, aquariums or anyone with a respiratory condition at booking.
Most of the time you can carry on as normal. If a particular area needs to be empty we will flag it when we arrive and it is rarely more than a couple of hours.
Usually between one and two hours on site. Bigger properties and heavier infestations take more, and that is included in the quote rather than added afterwards.
Every general treatment carries a 6-month warranty. If activity continues past the expected period, call us and we will come back.
Yes. As well as Gordon we cover Pymble, Killara, East Killara and West Pymble on the same runs, so a job that crosses a boundary can be handled in one visit.
Photographs from Elite jobs across Sydney — not stock imagery.
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