TL;DR: Stay inside and do not investigate. Turn on exterior lights from inside if you can. Call 000 if you see someone on your property. Call 131 444 if you are concerned but cannot see anyone. The longer-term answer is a motion-activated barking alarm and exterior lights that trigger before you wake up — so the deterrent has already responded before you heard anything.
What to do right now — the immediate response
If you have woken to a noise outside or believe someone may be in your yard:
- Stay inside. Do not go out to investigate. This is the most important instruction. The risk of a direct encounter with an intruder is real and rarely in your favour.
- Turn on exterior lights — if you can do so from inside without exposing yourself to a window. Motion-activated lights are ideal for this; a wall switch near the bedroom that controls outside lights is also useful.
- Listen and observe from inside. A legitimate noise (animal, neighbour, rubbish bin, wind) will stop. A person on your property will often be deterred by lights activating and the sense of someone awake inside.
- If you see someone on your property: Call 000 immediately. Give the address, describe what you can see, stay on the line.
- If you are concerned but cannot see anyone: Call 131 444 (police non-emergency). Note the time and describe what you heard. Police can do a drive-past.
- Do not confront anyone. Do not open the door or go outside. A brief encounter with an intruder is almost always worse than the property loss that would have occurred without confrontation.
Most night-time noises are not intruders
It is worth putting the risk in perspective, while taking it seriously. Most unexplained night-time noises near residential properties are:
- Animals — possums on roofs and in gardens are extremely common in Australian suburbia and sound alarmingly large
- Neighbours — late arrivals, rubbish bins, cars
- Wind — bin lids, gates, loose panels
- Settling sounds — particularly common in older homes
This does not mean the anxiety you feel is irrational. It means the practical response is to have deterrents in place that activate before you wake up — so that if it is an intruder, they have already encountered a response and (usually) moved on before you heard anything.
How to prevent it happening again — the deterrent layer that activates before you
The goal of an effective home security setup is that any actual intruder has already encountered a response before you are aware of them. This means deterrents that activate on approach, not on entry.
You wake to a noise
Someone is already in your yard or at your entry point. You are now awake, anxious, and faced with a decision about what to do. The intruder has not yet been signalled that anyone is home and aware.
The alarm responds before you wake
Motion at your entry point triggers barking immediately — before the intruder has had time to test a lock. The sound of a dog signals occupancy and unpredictability. Most opportunistic intruders move on at this point. You may sleep through the whole thing.
This is the core value of a motion-triggered barking alarm for night-time security: the deterrent response happens before you are involved. You do not need to make a decision. You do not need to be awake and alert. The alarm has already communicated that the property is occupied, watched and protected.
Motion-triggered barking at your entry point — automatic.
K9-Alert places a wireless sensor at your entry point. The moment motion is detected, the receiver inside triggers realistic dog barking. The intruder hears a dog before they have tested your lock — and leaves. No Wi-Fi, no app, no monthly fee.
- Reacts on approach — before any entry attempt.
- Arm from your bedroom — one button on the key-ring remote.
- Adjustable volume — loud enough to be heard outside, controllable inside.
Longer-term setup for night-time security
To make your home genuinely secure at night, the priority list is:
- Motion-triggered barking alarm at main entry points — front door, back door, side gate.
- Motion-activated exterior lights at front and back — a light activating is the second-strongest deterrent after a dog sound, and it makes any actual presence visible from inside.
- Strong deadbolts on both main entry doors — so that if someone does reach the door, they face a proper barrier.
- Ground-floor window latches checked — particularly laundry and bathroom windows, which are often overlooked.
The first two items are deterrents — they prevent approach from becoming entry. The second two are delay mechanisms — they extend the time needed for entry, which increases the chance of the intruder leaving.
Let the alarm respond before you have to.
K9-Alert is a motion-activated barking alarm for Australian homes. No wiring, no app, no subscription. $99.95 with free AU shipping and a 30-day money-back guarantee.
Order K9-AlertFrequently Asked Questions
What should I do if I hear someone outside my house at night?
Stay inside. Turn on exterior lights from inside if you can do so safely. Call 000 if you see someone on your property; call 131 444 (non-emergency) if you are concerned but cannot see anyone. Do not go outside.
How do I stop someone coming back to my yard at night?
Motion-activated exterior lights and a motion-triggered barking alarm. Both react to approach before entry. An intruder who sees lights activate and hears a dog bark will almost always move on.