Should you rekey or replace your locks? Understanding the difference
At some point, most homeowners face the question of whether to rekey their locks or replace them completely. Perhaps you have just moved in, lost a set of keys, or want better security. Both options stop old keys working, but they suit different situations. A professional locksmith in Hitchin can assess your locks and recommend the right option, and it helps to understand the difference first.
What does rekeying mean?
Rekeying changes the internal mechanism of a lock so it works with a new key. The lock body stays where it is, but the old keys no longer operate it. It is a practical way to restore control over who can get in without fitting new hardware.
Rekeying works well on many traditional locks, such as some mortice and rim locks, where a locksmith can change the internal levers or pins. It can also be used to make several locks work with a single key, which is convenient if you have a front and back door.
A note on euro cylinders
Most uPVC and composite doors in the UK use a euro cylinder: the part of the lock you put the key into. On these doors, replacing the cylinder is usually quicker and more cost-effective than rekeying it. The multipoint locking mechanism in the door stays in place, and only the cylinder changes. In practice, this is what many people mean when they ask to have their locks changed, and it is often the best option.
When should you replace your locks?
Replacement means removing the existing lock and fitting a new one. It is the better choice when a lock is damaged, worn or no longer gives the level of security your property needs.
Signs that replacement is due include a lock that is hard to turn, jams often, shows visible damage or has been tampered with. Older locks also wear internally over time and become less reliable.
Replacing locks is also the way to upgrade your security. Anti-snap euro cylinders rated TS 007 3-star or Sold Secure Diamond resist one of the most common break-in methods. For timber doors, a British Standard five-lever mortice lock is often required by home insurers.
Rekeying or replacing: how to decide
If your locks are in good condition and you simply need to stop old keys working, rekeying or a straightforward cylinder swap is usually the most cost-effective route. If your locks are worn, damaged, outdated or below the standard your insurer expects, replacement is the better long-term choice.
A trusted locksmith in Hitchin will inspect your locks and explain the options honestly, without recommending replacements you do not need.
When to change your locks
There are some situations where it is always worth acting:
You have moved into a new home and do not know who else has keys.
Keys have been lost or stolen, especially if they were with something showing your address.
A tenant, lodger or former partner has moved out without returning keys.
You have had a break-in or attempted break-in.
Your insurer has asked for locks that meet a particular standard.
Common mistakes
The mistakes we see most often are leaving locks unchanged after moving house, fitting a cheap replacement cylinder that does not resist snapping, and choosing a cylinder that is too long, so it sticks out from the door and is easier to attack. A locksmith will measure the door and fit a cylinder of the correct length.
How a locksmith can help
Locksmiths help with emergency lockouts, lost or stolen keys, broken locks and security upgrades. If you are unsure whether your locks need repairing, rekeying or replacing, a local locksmith can give you a clear answer and carry out the work with the right tools, protecting your doors and existing hardware.
Locksmith services from Templar Locksmiths
If you are not sure whether to rekey or replace your locks, contact Templar Locksmiths. Our team will assess your current security, give you honest advice and help make your home more secure for you and your family.
