Signs of a Rats and Mice Infestation (and What to Do Next)

The part most people get wrong

Most of the cost in dealing with rodents comes from doing it twice. Getting the identification and the source right the first time is what makes the difference between one treatment and a recurring expense.

Get that sequence right and a single treatment generally holds. Get it wrong and you are treating the same thing next month.

The method itself, product by product, is explained on our page about rodent control.

How to tell you have a problem

The early evidence is usually subtle, and most of it is found in places nobody looks. Worth checking for:

• A persistent sharp ammonia smell in a pantry, roof void or under a sink.
• Droppings on top of kitchen cupboards, where rats travel but people rarely look.
• Gnaw marks on food packaging, skirtings, cabling or irrigation lines.
• Dark droppings from rice-sized to bean-sized along walls and in cupboards.
• Dirty smudges around a gap at a pipe penetration or weatherboard joint.

Where several of these show up together, the population is established rather than passing through, and the treatment needed changes accordingly.

The rest of what we handle is set out under the pest control services page.

Why this property and not the one next door

Nothing moves in without a reason. Rodents turn up where there is food, water or shelter available, and in most Sydney homes it is a short list of the same culprits:

• A roof void with easy entry and undisturbed insulation to nest in.
• Fruit trees, compost, chicken feed or pet food available overnight.
• Cooling weather in autumn, when rodents move indoors for shelter.
• Overhanging branches and service cables used as a bridge to the roof.
• Bins stored against the wall with lids that do not seal.

Addressing even two or three of these significantly reduces the chance of a repeat.

Treatment options compared

There is rarely one correct method. What follows is what each approach does well and where it falls short:

When comparing quotes, compare methods rather than prices - that is normally where the difference sits.

If you want to see how the treatment is actually carried out, the rodent control page walks through each stage.

The visit itself

So you can plan your day around it:

1. Arrival and walk-through. The technician inspects inside and out, confirms the species and shows you what they have found before anything is applied.
2. Agreeing the work. The figure is confirmed against what was actually found, and you decide from there.
3. Treatment. Most general treatments take 45 to 90 minutes depending on the property size and how much access is involved.
4. Handover. You get the timeline, the aftercare, the specific fixes for your property and your paperwork.

Expect a short increase in sightings after a bait treatment. It means the bait is being carried, which is the point.

What it costs in Sydney

Price depends on the property size, the species and how established the population is. These are the starting figures Elite Pest works to in 2026:

The quote is confirmed before work begins and does not change unless you ask for more work. General pest treatments carry a six-month warranty.

We set out the full process, timelines and warranty terms under how rodent control works.

What this means if you have kids or animals

Short answer, yes. The longer answer is about method:

• Where a household has asthma, allergies or a newborn, the method is adjusted on request.
• Fish tanks are covered and pet bowls and bedding moved before any treatment.
• Baits, gels and dusts go into cracks, voids and secured stations - not across open surfaces.
• Nothing is applied to food preparation surfaces or anywhere food is stored.

We would rather adjust the approach than have you worry about it afterwards, so raise it on the phone.

Anyone you let into your home for this work should be licensed and insured, and licensed and insured technicians sets out ours.

Where DIY stops working

This is worth being straight about, because DIY is not always the wrong answer. It is the wrong answer once a population is established, for reasons that are fairly mechanical:

• Retail products kill what they touch and leave the nest or harbourage producing.
• Without identification there is no way to know whether it is working or just scattering.
• Spraying over bait placements makes them unpalatable and wastes the treatment.
• Concentrations are lower and residual life shorter than professional-grade equivalents.

Where it crosses over is roughly when you have treated twice and it has come back, or when the species itself is a safety question.

If you are not certain which pest you are dealing with, the full range of treatments we carry out lists what we treat and the signs that point to each.

What counts as an emergency

Not everything needs a same-day visit, and it is reasonable to want to know which this is. Treat it as urgent when:

• A tenancy, sale or inspection is imminent.
• It is a food business, childcare centre, medical premises or aged care.
• The species is one capable of a medically significant bite.
• You have found live termite activity in or against the building.

If none of those apply, there is no need to panic - but there is also no advantage in waiting, since populations keep breeding either way.

If your suburb is not mentioned above, the suburbs on our run will confirm whether we are out that way.

Choosing a pest controller in Sydney

Pest control is licensed work in New South Wales, and the gap between operators is wider than the price difference suggests. Before you book anyone:

• Ask for the technician's NSW pest management licence number, not just the company name.
• Get the quote in writing, fixed, before any work starts.
• Confirm they hold current public liability insurance.
• Ask which method they intend to use and why that one.
• Be wary of a price quoted over the phone without any questions about the property.

If someone will not put the quote or the warranty in writing, that is your answer.

That is worth checking before you book anyone, including us - about the team covers our licensing, insurance and how long we have been doing this.

After the treatment

The warranty on general pest work runs six months. Covered pests returning in that time are re-treated free - no argument, no second call-out fee.

There are limits worth knowing rather than discovering later. The warranty covers the pests treated, not a new and different problem, and it assumes the prevention advice was followed - leaving an open food source or an unrepaired leak is outside it. Termite barriers and baiting systems carry their own separate terms, usually tied to annual monitoring.

You should receive the terms with your paperwork on the day rather than having to request them.

The alternative to treating reactively is a regular residential program, timed around the seasons above.

Common questions