If you’re looking to improve your home security, DIY options for rekeying or changing locks can be a practical and cost-effective choice. Rekeying a lock is often more affordable than replacing it entirely, as it only involves adjusting the internal pins to match a new key. While hiring a locksmith in New Zealand typically costs between NZD $50 to $150 per lock, a DIY approach can save on labor fees. However, you may need to purchase a rekeying kit or specific tools, which come with an upfront cost. For those looking to change a lock instead, hiring a locksmith costs between NZD $80 to $250, but homeowners with basic DIY skills can handle the process themselves using common household tools.
Tools and Tips for Rekeying
To successfully rekey a lock, you’ll need a lock rekeying kit, which usually includes new pins, springs, and detailed instructions designed for specific lock types. Alongside the kit, you’ll need basic tools such as:
- Phillips screwdriver – For disassembling and reassembling the lock.
- Pliers – To manage small components like springs and pins.
- Flashlight – To illuminate small lock components, especially in low-light conditions.
If you’re planning to rekey multiple locks, investing in a professional-grade pinning kit might be worthwhile. These kits, which are more comprehensive than basic rekeying kits, allow you to rekey a wide range of locks. However, they come at a higher price, typically costing NZD $250 to $500 or more. For small-scale projects, like rekeying one or two locks, a standard kit will usually suffice.
Rekeying locks requires patience and precision, especially if you don’t have the original key. Without the key, the process becomes more complex and may require additional tools or techniques. Small mistakes, such as misplacing pins or damaging springs, can make the lock unusable, which may force you to replace it entirely — ultimately costing more than hiring a locksmith in the first place.
Can You Rekey or Change Locks Yourself?
Yes, it’s possible for most homeowners to rekey or change their locks, as long as you have the right tools and a bit of patience. Changing a lock is the simpler of the two options. It typically requires just a screwdriver and some basic DIY knowledge. To change a lock, you’ll need to unscrew the old lock, follow the manufacturer’s instructions for installing the new one, and secure it in place. This process is usually straightforward and can be completed in under an hour. However, for high-security locks or more complex locking systems, hiring a professional locksmith is recommended to ensure proper installation and avoid potential security flaws.
Rekeying a lock is also achievable with the right tools and guidance, but it requires more precision and technical skill. The process involves removing the lock cylinder, replacing the internal pins to match a new key, and reassembling the lock. If done correctly, the old key will no longer work. This method is ideal if you’ve lost a key or want to make sure previous keyholders (like former tenants) no longer have access. If you’re unsure about the process or worried about damaging the lock, hiring a locksmith can save you time, stress, and the cost of buying a new lock.
DIY vs. Professional Assistance
When deciding whether to handle a DIY lock rekeying or lock change, it’s important to assess the complexity of the task and your confidence in completing it. Rekeying a lock requires a steady hand, attention to detail, and familiarity with lock mechanisms. Changing a lock is generally simpler, as it only involves swapping out the hardware. However, improper installation of a new lock can weaken home security, which is why professional assistance is recommended for those who aren’t confident in their DIY abilities.
If you’re dealing with high-security locks, keyless entry systems, or locks with proprietary designs, it may be wise to seek help from a professional locksmith. Experienced locksmiths have the skills, tools, and technical knowledge to manage advanced security features, and they can resolve any complications that arise during installation or rekeying. While professional locksmith services in New Zealand come at a cost — usually NZD $50 to $150 per lock for rekeying or NZD $80 to $250 for lock changes — the peace of mind you get from knowing the job has been done properly is often worth it.
Process and Practical Considerations for Rekeying Locks in New Zealand
The time it takes to rekey a lock depends on the type of lock and the experience of the person doing the job. A professional locksmith can usually rekey a lock in 10 to 40 minutes, with simpler locks taking as little as 15 minutes. For more complex locking systems, the process can take 30 minutes or more. If you’re attempting a DIY rekeying, expect it to take longer, especially if you’re unfamiliar with the process or don’t have the right tools. The most time-consuming part is often removing the lock from the door, as the actual rekeying process is relatively quick once the lock is accessible.
Before starting, it’s important to determine if your lock is suitable for rekeying. Most standard pin-tumbler locks can be rekeyed, provided they are in good working condition. If your lock operates smoothly and shows no signs of damage, it’s likely rekeyable. Rekeying is a practical option if you’ve lost a key or want to ensure that old keys no longer work, especially after moving into a new property. However, some locks may not be compatible with rekeying, especially certain electronic locks or damaged locks. In these cases, lock replacement may be the better option. If you’re unsure whether your lock is rekeyable, a professional locksmith can inspect it and offer guidance.
If you’ve lost the original key, rekeying without the original key is still possible but significantly more challenging. This method, often called “blind rekeying,” requires disassembling the lock and manually adjusting the internal pins without a key to act as a reference. For locksmiths, this is a manageable task thanks to their experience and tools. However, for DIYers, blind rekeying can be risky. Without the right equipment and know-how, it’s easy to misconfigure the pins, which may leave you with a lock that won’t function properly. For this reason, rekeying without the original key is best left to professional locksmiths to avoid damage and unnecessary costs.
By considering factors like time, lock compatibility, and the availability of the original key, you can decide if rekeying is the right option or if you should seek professional help. For simpler locks and accessible keys, DIY rekeying can save you money. For more complex locks or situations where the key is missing, calling a locksmith may be the safer option.
Risks and Tools for Rekeying Locks in New Zealand
Rekeying a lock can be a cost-effective way to improve home security, but it also comes with certain risks — especially if you don’t have the proper tools or experience. One of the most common issues is accidental lock damage. If the lock is already worn or damaged, attempting to rekey it yourself can worsen the problem. Misaligned pins or springs can cause the locking mechanism to jam, making the lock difficult to turn or, in some cases, completely unusable. If this happens, you may be forced to replace the lock entirely, which costs much more than a simple rekeying job.
Another security risk involves the control of key access. If you don’t rekey locks after moving into a new property, previous owners, tenants, or contractors who have old keys may still be able to access your home. To avoid this risk, it’s recommended to rekey your locks after moving in. For those rekeying their locks as a DIY project, it’s essential to follow instructions carefully and ensure that all pins and springs are properly aligned. Failing to do so could compromise the lock’s functionality, leaving your home vulnerable to security threats.
Locksmiths have the advantage of using specialized tools to avoid these risks and ensure a smooth, efficient rekeying process. Here are some of the essential tools used by locksmiths in New Zealand:
- Rekeying kits: These contain pins, springs, and keys designed for specific lock brands and models.
- Plug followers: These tools hold pins in place while the lock cylinder is removed.
- Tension wrenches: Used to maintain pressure on the cylinder while pins are adjusted.
- Pick tools: Small, precision tools used to adjust and position lock pins correctly.
- Screwdrivers: Essential for disassembling and reassembling the lock.
For homeowners attempting a DIY rekeying, a basic rekeying kit is sufficient for simple jobs. These kits are relatively affordable and include pins and springs tailored for specific brands of locks. However, for more complex jobs or for rekeying multiple locks, a professional-grade rekeying kit may be required. Professional kits are more versatile, allowing you to rekey a wider variety of locks, but they can cost anywhere from NZD $100 to $300.
If you’re unsure of your ability to rekey a lock, hiring a locksmith may be the safer option. Locksmiths in New Zealand charge approximately NZD $50 to $150 per lock for rekeying, which is often cheaper than replacing the entire lock if something goes wrong. By hiring a professional, you avoid the risks of misaligned pins, stuck locks, or the need for a costly replacement.
FAQ
- What should I do if my lock jams after rekeying?
If your lock jams after rekeying, it’s likely due tomisaligned pins or springsinside the cylinder. Try disassembling the lock and checking that all components are properly positioned according to the rekeying instructions. If the lock remains stuck, it’s best to call a professional locksmith to avoid causing further damage to the internal mechanism. Locksmiths can quickly identify alignment issues and restore the lock’s functionality. - Can rekeying make my existing lock more secure?
Yes,rekeying improves securityby ensuring old keys no longer work, making it impossible for previous keyholders to access your property. This is especially useful after moving into a new home, losing a key, or ending a tenancy agreement. Rekeying is a cost-effective way to boost home security without having to replace the entire lock system. - Are there certain types of locks that can’t be rekeyed?
Some locks, likesmart locksor certain electronic locks, cannot be rekeyed in the traditional sense. Instead, they may require a factory reset or reprogramming to remove access from previous users. Additionally, damaged or worn locksmay not be suitable for rekeying, as the internal components may have deteriorated. If you’re unsure whether your lock is rekeyable, a professional locksmith can inspect it and provide guidance. - Do I need to rekey my locks after losing a key?
Yes, rekeying your locks after losing a key is one of the smartest ways to protect your property fromunauthorized access. Since you can’t be sure who might have found the lost key, rekeying prevents anyone from using it to enter your home. It’s a cost-effective alternative to replacing the entire lock, as it only requires adjusting the internal pins to fit a new key. - How do I know if I’ve made a mistake during the rekeying process?
If your new key doesn’t turn smoothly, or if the lock jams, it’s a sign that thepins or springs are misaligned. You may need to disassemble the lock and check that all pins are in the correct order and height. If you’re unsure how to realign them, consider contacting a locksmith to avoid causing damage.Misalignment errors are one of the most common issues DIYers face during rekeying. - Can rekeying a lock prevent previous keyholders from gaining access?
Yes, rekeying ensures that all old keys will no longer work with the lock, making it an effective way toblock accessfor previous tenants, contractors, or former occupants. Since the internal pins are rearranged, only the newly issued key will be able to open the lock. This is why rekeying is often recommended when moving into a new home or rental property.