Cost to Rekey Locks: How Much Should You Expect to Pay?

You might be wondering what the phone call question is that everyone goes through when they call us: “How much does it cost to rekey the locks?” The good news is that rekeying is usually much cheaper than people think. In Sydney, the typical rekeying cost per lock is $80–$150, again, depending on the lock and job setup.
It doesn’t matter if you just changed your residence, lost your key, or had a security scare; rekeying is one of the smartest and most economical security steps you can take.
What Is Lock Rekeying and Why Is It Cost-Effective?
A cheap, simple way to reset your security
Rekeying is the way to go if you want to keep your lock but change your key! It involves replacing the internal pins in your lock so that the old keys no longer work and the new key works instead. As part of the process, most locksmiths also provide professional key-cutting services to ensure your new keys are precision-cut and work smoothly from day one.
On the other side, a replacement means that the whole unit has to be taken out and a new one put in, and naturally, it is a long and costly process.
Thus, the rekeying cost is often only a small percentage of the replacement cost. For instance, rekeying five locks can cost $350–$550, while replacing these same five locks can easily rise to $700–$1,500+ or even more, depending on the hardware.
What Determines Lock Rekeying Prices?
The factors behind the final bill
Australia’s rekey lock price list has some very simple and logical reasons for being so varied. Here are the main factors that directly influence the cost you pay:
Locks Quantity
More total locks mean a higher total cost, a lower per-lock rate, however, owing to bulk purchasing.
Lock Type and Its Complexity
Standard deadbolts take less money to rekey than others. High-security, restricted, and commercial lock rekeying requires more time and expertise, thereby elevating the cost.
Lock Access
Locks to front doors are easy. Locks that are hard to reach (gates, awkward doors, multi-level access) take a long time.
Lock’s Condition
Old, worn, or very stiff locks may need more work to get rekeyed.
Job Timing
Cost of emergency rekeying is understandably higher after-hours and holidays generally have a 50-100% surcharge.
Rekeying Location
Rates for travelling to Sydney CBD and its outer suburbs are slightly different due to the time taken for travel.
Single and Bulk Rekeying
A single lock is more expensive per unit than bulk locks. Bulk jobs sometimes do come with bulk rekeying discounts.
Typical Rekeying Cost Ranges in Sydney

Real pricing you can actually expect to pay
Here is the section that you are actually after: realistic rekeying cost ranges, Sydney style.
Single Residential Lock
$80–$150 per lock
Standard houses, deadbolts, knob sets, and locks of common doors.
Rekeying a Typical Home (3-5 Locks)
$250-$500 total
Most houses belong to this category. The price per lock drops when the rekeying is done in one visit.
Commercial Office (10-15 Locks)
$700-$1,400+
Depends on the type of lock, restricted keys, higher-security systems, and the installation hardware for commercial locks increase the costs.
Bulk Rekeying (20+ Locks)
From $1,200+
Big sites like strata complexes, warehouses or offices offer strong discounts per lock.
After-Hours Emergency Rekeying
Standard rate + 50–100% after-hours surcharge
For instance, a $120 lock may become $180–$240 after hours.
These ranges show the rekeying cost Sydney standards that are fair and are given by reputable locksmiths.
Rekeying vs. Lock Replacement: Cost Comparison
Which one should you choose?
Rekeying
- FAR cheaper
- Very quick (in most cases, a lock can be rekeyed within 5-15 minutes)
- Approximately the same security level for the majority of households
- Perfect for rekeying situations such as after moving, losing keys or having security worries
- Doesn’t require new hardware – you can use the old one
Replacement
- More expensive
- If the locks somehow get damaged, worn out, or are no longer up to the required security standards, then a replacement is the only option
- It’s a good idea to upgrade when going for higher-grade hardware
- If there is noise from the locks or there is a mismatch in the locks, then go for this option
Cost Difference Example
Rekeying one lock: $80–$150
Replacing one lock: $120–$300+ (depending on hardware)
Hundreds of dollars can make a difference in cost for a full home, sometimes even more than that, over $1,000.
Cost-Saving Tips for Lock Rekeying
How to keep your rekeying bill as low as possible
Rekeying is already an economical choice, but still, there are ways to make it more cost-effective:
- Rekey locks in bulk – A single visit = a per-lock rate that is lower.
- Limit the hours of service to the day’s business hours – Do not incur surcharges for after-hours service unless it is an emergency.
- Key security should be the first priority – First, rekey the locks that are most important (front door, garage, office).
- Get a quick security check done – You might not need to do all the locks today; a locksmith can give you his advice.
- Inquire about commercial or strata discounts – Bigger sites usually get better rates.
- Think about a master key system – In the case of businesses, this can supersede multiple rekeys for a long time.
Clockwork Locksmiths is constantly looking for the cheapest lock rekeying solution that will meet your needs.
Why Pricing Varies: Transparency Talk
Why one locksmith might charge differently from another
If you’ve been calling around and getting different quotes, don’t worry, it’s quite typical. The professional locksmith rates are differentiated by a few reasons:
- Some locksmiths cover longer distances, which makes the time and cost go up
- The level of experience varies (Master Locksmiths Association members normally charge reasonable, consistent rates)
- Cheap operators cut prices, then apply hidden fees
- High call-out charges or “service fees” are added by some companies
What is important is honesty. A trustworthy locksmith gives you the price at the beginning, clarifies the reason, and then adheres to it. That’s the way Clockwork Locksmiths works, no hidden costs, no unpleasant surprises, just fair locksmith prices you can trust.
When to Call a Professional Locksmith

When DIY isn’t worth the risk
Rekeying seems to be easy to perform, as seen on YouTube. However, if you don’t have the right tools and training, you can easily ruin a lock beyond repair. We have been called on numerous occasions to repair do-it-yourself jobs that ended up costing more than professional rekeying in the first place.
- The benefits of hiring a qualified locksmith are:
- The lock functions without any problems
- The new keys work without fail
- No destruction of hardware or doors
- The rekeying is done in a way that still gives full security
It is a small residential lock rekeying cost, but having a professional do it is worth every cent, especially when your home’s security is at stake.
Ready to Get Your Locks Rekeyed?
Fair pricing. Clear quotes. No surprises
In case you require rekeying of your locks, it may be for a new residence, lost keys, or simply for your own reassurance, Clockwork Locksmiths will assist you. We provide clear quotes, reasonable fees for lock rekeying, and 24/7 emergency support if you need us urgently.


