Mobile Automotive Locksmith · Melbourne & Geelong
Spare & Duplicate Car Keys
Spare and duplicate car keys for most makes and models across Melbourne and Geelong. We come to you.
Request a Callback
Tell us your vehicle and what has happened, and we will call you straight back.
What is a spare or duplicate car key?
A spare or duplicate car key is a second working key made while your original still works, cut and programmed so it starts your car and works every lock and button just like the first. Making a spare while you still have a key is quicker and cheaper than a full replacement, and it means a single lost key is never a roadside emergency.
We duplicate mechanical keys, transponder chip keys, remote key fobs and proximity smart keys at your car across Melbourne and Geelong. If every key is already gone, that is a lost car key replacement instead, which we also handle.
Spare or replacement? Choose a spare while a working key is still in your hand. Choose replacement once the original is lost, damaged or unusable.


When drivers ask us for a spare or duplicate key
Real calls from Melbourne and Geelong drivers. If one of these sounds like your day, we can cut a new key at your car.
One key for the whole household
Sharing a single key between drivers. A spare means two people are never stuck waiting.
Bought a car with one key
Second hand car, single key in the glovebox. We make the backup before losing it becomes a problem.
A just in case backup
You have never had a spare and would rather not risk it. We cut and code one at your home or work.
Second remote or smart key
You want a paired remote or proximity key for another driver. We duplicate and code it on site.
Spare before a trip
Heading away and do not want a lost key to strand you. We sort a backup before you go.
Worn key you rely on
Your only key is getting tired. We cut a fresh spare to code so you are not left with a failing key.
Mobile Service · Melbourne & Geelong
Why choose Ostan Locksmiths?
- Fully mobile: we come to your car or motorcycle anywhere across Melbourne and Geelong
- Licensed and insured technicians you can trust with your vehicle and keys
- Fast response: tell us your location and what happened, and we head your way
- Full car key service: replacement, lost keys, spares, cutting, programming, remotes and lockouts
- Motorcycle keys cut and replaced for most makes and models
Call 0410 380 354 to tell us about your vehicle, or send the form and we will get straight back to you.
Get In Touch
Send your details and we will call you back shortly.

Which car keys can we duplicate?
We can duplicate almost any car key, and each type needs the right blank and coding path. We carry the gear for all of them, so your spare is cut and paired in one mobile visit.
- Mechanical and edge cut keys duplicated
- Transponder chip keys copied and paired to your immobiliser
- Remote flip keys and separate fobs cut and coded
- Proximity smart keys for push button start cars
- Laser cut sidewinder keys for European and newer models
How our mobile spare key service works
- Call 0410 380 354 or send the callback form with your make, model, year and that you still have a working key
- We confirm the key type and quote your spare or duplicate
- Your locksmith drives to you, cuts the spare and programs it at the car
- You test the new key on the doors, boot, ignition and buttons before we pack up


Cut from your key and coded to your car
A spare is more than a copy of a worn key. We decode your working key or pull the factory code from the VIN, cut the new blade to that exact specification, then program the transponder and remote so your car reads it as an original.
- Working key decoded or code pulled from your VIN
- Blade cut to factory specification, not traced from a worn key
- Transponder and remote paired through the OBD diagnostic port
- Both keys tested so either one starts the car
- Proof of ownership checked on every job, licence and rego
Which cars can we cut keys for?
We work with popular makes across Melbourne and Geelong, including BMW, Fiat, Ford, Holden, Hyundai, Jeep, Kia, Mazda, Mercedes, Mitsubishi and Toyota. Have these details handy when you call:
Make and model: the exact model, not just the manufacturer.
Year of manufacture: different years can use different key systems.
Current key situation: all keys lost, one working key left, a damaged key, or a faulty remote.
Location: your Melbourne or Geelong suburb and a safe place to meet.
Key photos: if a key remains, a clear photo helps.
With those details we will confirm the right service and head your way. If your make is not listed, get in touch anyway.

Cut & Programmed On Site
Brands We Service
Ostan Locksmiths cuts and programs car keys for popular makes across Melbourne and Geelong. Modern vehicles use different key systems, from transponder keys to proximity smart keys, so have your make, model and year ready when you call.
Not sure if we can help? Pick your make from the list, then call 0410 380 354 or send an enquiry. If your make is not listed, get in touch and we will let you know how we can help.
A spare now beats a lockout later
A spare arranged today is far cheaper than an all keys lost callout tomorrow.
The dealership route
- Lose your only key with no backup
- Pay for a full all keys lost replacement
- Wait roadside while a new key is made
The Ostan mobile way
- Have a spare cut and coded while your key still works
- Pay less than a full replacement
- Keep driving even if one key goes missing
What affects the cost of a spare car key in Melbourne?
A spare is quoted on your key system, not a flat guess, and it is usually cheaper than a full replacement because a working key is there to copy. Tell us the make, model and year and we explain the job first.
You get one clear price up front, with no call out surprises.
- Key type: a mechanical spare is simpler than a transponder, remote or smart key
- Programming: a plain metal spare needs no coding, a chipped key or remote does
- Make and year: some European models use encrypted keys with extra steps
- Key blank availability: common blanks travel in the van, rare ones may be ordered
- Location: the quote covers the full mobile visit to your Melbourne or Geelong suburb


What to check before you call
A few quick checks make the visit faster and keep the cost down.
- Search first: bags, pockets, the seat gap and the jacket you wore yesterday
- Note your make, model and year, and whether any key still works
- Check the old key for a bent blade, cracked case or dead buttons
- Know the suburb and the exact spot where the car is parked
- Have your rego or VIN handy for the key compatibility check
We Provide These Services In Melbourne
- Car key replacement
- Lost car key replacement
- Spare and duplicate car keys
- Combined car key cutting and programming
- Remote and key-fob replacement
- Mobile vehicle lockout assistance
- Motorcycle key replacement
- Motorcycle key cutting
Availability depends on the vehicle make, model, year and key system.
Areas We Service
Mobile spare and duplicate car keys across Melbourne and Geelong, from the inner city to the outer suburbs, along the M1, M80 and EastLink corridors. We come to you with the cutting and coding gear on board.
Melbourne
Car key replacement in these popular suburbs and everywhere in between.
Geelong & Bellarine
Our Geelong team covers the city, the Bellarine and the Surf Coast.
- Geelong CBD
- Geelong West
- Newtown
- Belmont
- Highton
- Lara
- Waurn Ponds
- Leopold
What drivers say
Mobile Spare & Duplicate Keys · Melbourne & Geelong
Want a spare car key before you need it?
Speak directly with a mobile automotive locksmith now. We come to you anywhere in Melbourne or Geelong, cut the new key at your car and program it on the spot.
Frequently Asked Questions
It helps a lot. This service is for when you still have a working key. Keep it handy and tell us what it does.
The make, exact model, year, your Melbourne or Geelong suburb, and a description of your current key.
For most makes and models, yes. Give us the make, model and year and we will confirm and bring the right blank.
Then it is a lost-key job. Use our lost car key replacement service and let us know no working key remains.
Call 0410 380 354, email michael@ostanlock.com.au or use the form, and we will get straight back to you.