Lost or Stolen Keys Perth: What to Do Next and How to Secure Your Home Fast
- •Lost or stolen keys give an unknown person potential access to your home — act the same day, not the same week.
- •Rekeying changes your lock's internal pins so old keys stop working, without replacing the entire lock.
- •Every external entry point sharing the lost key needs attention — not just the front door.
- •Locks older than 10–15 years may warrant full replacement rather than a rekey.
- •A licensed Perth locksmith can assess and rekey your locks in a single visit, often within hours.
You’ve checked every pocket, retraced every step, and your keys are gone. Whether they slipped out at the shops or were taken with your bag, your home is now potentially accessible to a stranger. This is not a situation to leave until morning.
What Is the Real Risk When Your Keys Go Missing?
An opportunist only needs one unlocked moment — don't hand it to them.
Most residential break-ins are opportunistic. A key found near your address — or lifted from a bag alongside ID showing where you live — hands a burglar silent, traceless entry into your home. No forced door, no noise, no obvious evidence until something is missing.
Stolen keys carry even higher risk. If your keys were taken deliberately, there’s a reasonable chance the person already knows your address. The related article Stolen Keys vs Lost Keys: Why You Should Rekey Your Locks Straight Away covers why the distinction matters for how urgently you need to act.
If your keys were in a bag that also contained your wallet or any ID, treat it as a stolen keys emergency and call a locksmith immediately. A key plus an address is all a burglar needs.
What Should You Do Immediately After Losing Your Keys?
The first hour matters more than most Perth homeowners realise.
The companion article What to Do Immediately After Losing Your Keys in Perth covers the full action checklist — but the short version is this: call a licensed locksmith the same day and ask about same-day or emergency rekeying. Don’t wait to see if the keys turn up.
While you wait for the locksmith, don’t leave your home unattended if you can avoid it. If you’re already locked out as well as having lost your keys, Ultimate Locksmith Perth’s services include handling both a lockout and a full rekey in a single callout — saving you a second visit fee.
Should You Rekey or Fully Replace Your Locks?
The right answer depends on your lock's condition, age, and security grade.
If your locks operate smoothly with no rust, stiffness, or visible damage, rekeying is almost always the right call. A locksmith removes the cylinder, replaces the internal key pins, and cuts new keys — all without touching your door hardware. Your old keys stop working permanently, including any copies you didn’t know existed.
Full replacement makes sense when locks are corroded, damaged, or a low-security grade — such as a basic knob lock on an exterior door. Perth’s coastal climate accelerates corrosion, and what looks minor on the surface is often far worse inside the cylinder.
If your locks are more than 10–15 years old, the cost difference between rekeying and replacing narrows considerably — and the security uplift from new hardware is significant. Ask your locksmith to assess the cylinder before defaulting to a rekey on ageing hardware.
Which Locks in Your Home Actually Need Rekeying?
Don't just rekey the front door — think about every point of entry.
If your lost key opens the front door, it likely opens the back door and side gate too — especially on a matched-key or master key system. A partial rekey leaves gaps a determined person will find.
- •Front door — highest priority, rekey or replace first
- •Back and side entry doors — equally critical, often overlooked
- •Garage entry into the home — a common secondary access point
- •Deadbolts and separate security locks — each cylinder needs individual attention
- •Storage sheds or workshops if the same key was used
What About the Cost of Replacing Lost or Stolen Keys?
Understanding what you're actually paying for helps you avoid overspending.
Rekeying is generally less expensive than full replacement because you’re paying for labour and new pins rather than new hardware. The related guide How Much Does It Cost to Replace Lost or Stolen House Keys in Perth? breaks down what to expect for different lock types and callout times.
Emergency and after-hours callouts attract higher rates — that’s standard across Perth’s locksmith industry. If the situation isn’t urgent, scheduling during business hours will reduce your bill. If it is urgent, the peace of mind is worth the callout premium.
Can a Locksmith Make a New Key Without the Original?
You don't need to have your old key to get back into your home or get new keys cut.
Yes — a licensed locksmith can decode your lock cylinder directly and cut a new key without the original. The companion article Can a Locksmith Make a New Key Without the Original? What Perth Homeowners Need to Know covers the process in detail, including which lock types this works for.
In most cases, the locksmith will rekey at the same time — so the new key they cut is the only key that works. This is the most secure outcome after a loss or theft, and it’s done in a single visit.
Your Lost or Stolen Keys Questions Answered
Straight answers to what Perth homeowners ask most after losing their keys.
How Quickly Should I Rekey After Losing My Keys?
The same day is the safest answer. Every hour you wait is an hour of potential access for whoever has your keys. Call a licensed Perth locksmith immediately rather than waiting to see if the keys turn up.
Is Rekeying Effective If My Keys Were Stolen, Not Just Lost?
Yes — rekeying is equally effective whether your key was lost or stolen. Once the internal pins are changed, the old key is permanently invalid — no matter who holds it or how many copies were made. Act faster if you suspect deliberate theft.
Do I Need to Rekey Every Lock or Just the Front Door?
Every external entry point that shares the lost key’s profile needs attention. Rekeying only the front door while the back door remains on the old key defeats the purpose entirely. A locksmith can assess and rekey all affected locks in a single visit.
What If I'm Also Locked Out at the Same Time?
Call 0481 365 802 immediately — Ultimate Locksmith Perth operates 24/7 and can handle both the lockout and the rekey in a single visit. This saves you a second callout fee and secures your home in one visit.
Lost Your Keys? Call Perth's 24/7 Locksmith Now
Don’t leave your home exposed overnight. Call 0481 365 802 now — Ultimate Locksmith Perth is available 24/7 and can rekey your locks the same day, anywhere across Perth.
"*" indicates required fields
Related articles