What is Lock Snapping?
Lock snapping is a method of breaking into a locked door by snapping the cylinder of the lock. This technique is commonly used in the UK, where many homes have UPVC doors with cylinder locks. Cylinder locks are a popular choice for UPVC doors because they are relatively inexpensive and easy to install. However, these locks are also vulnerable to lock snapping.
When the cylinder is snapped, the lock can be easily opened without the need for a key. This method of breaking in is particularly dangerous because it can be done quickly and quietly, making it difficult for homeowners or neighbours to detect.

Protecting Against Lock Snapping
Here at Saunders Locksmiths, we are professional, 24/7 locksmiths who are experts when it comes to dealing with incidents of lock snapping, and we know all the best tips to keep your home secure. To protect against lock snapping, homeowners have several options available to them:
- Snap resistant locks are designed to be resistant to the pressure applied during lock snapping. These locks typically have a stronger cylinder or a mechanism that helps to reinforce the cylinder and make it more difficult to snap.
- Snap proof locks are specifically designed to prevent lock snapping by incorporating additional security features into the lock. These features may include a hardened steel core, multiple locking points, or a mechanism that prevents the lock from being opened when the cylinder is snapped.
- Anti snapping locks for UPVC doors are locks that are designed to resist lock snapping by using a special design or material in the cylinder. One common type of anti-snap lock is the anti-snap barrel. This is a cylinder lock that has a special groove or indentation around the circumference of the cylinder. When the lock is snapped, the groove or indentation helps to prevent the cylinder from breaking.
- Anti-snap euro cylinder locks are designed to fit into a standard euro lock, which is a type of lock commonly found on UPVC doors. Euro locks are generally more secure than standard cylinder locks, and anti-snap euro cylinder locks offer additional protection against lock snapping by incorporating special features such as a hardened steel core or a mechanism that prevents the lock from being opened when the cylinder is snapped.

Removing Anti Snap Locks
If you have an anti-snap lock on your UPVC door and you need to remove it without a key, it can be a bit of a challenge. One option is to try using a lock-picking tool to manipulate the lock and open it. However, this can be difficult and time-consuming, and it is not always successful. Another option is to call a locksmith, who will have the tools and expertise to remove the lock without damaging the door.
Best Anti Snap Locks for UPVC Doors
In terms of the best anti-snap locks for UPVC doors, the SS312 Diamond Approved Standard Cylinder is generally considered to be one of the best options. This is a high security cylinder lock that has been approved by the Master Locksmiths Association and is compliant with the British Standard for high security cylinder locks. The lock features a hardened steel core and multiple locking points, which help to prevent lock snapping and other forms of forced entry.

Changing Locks on UPVC Doors
If you have a UPVC door with a euro cylinder lock and you want to change it to a more secure lock for your home, one option is to simply replace the existing lock with a new one. This is a relatively simple process that can be done by a locksmith or even a handy homeowner. First, you will need to remove the old lock by removing the screws that hold it in place. Once the old lock is removed, you can install the new lock by following the instructions provided with the lock.
It’s important to note that when changing locks on a UPVC door, it’s crucial to ensure that the new lock is compatible with the door and is properly installed to ensure maximum security. It is also important to choose a lock that is approved by a reputable organisation such as the Master Locksmiths Association to ensure that it meets the necessary security standards.
Additionally, it’s a good idea to consider other forms of security for your home, such as installing a security system or CCTV cameras, as well as taking preventative measures such as keeping valuables out of sight and ensuring that doors and windows are locked when not in use. By taking these steps, you can help to protect your home and keep your family safe from potential burglaries.
Contact Saunders Locksmiths for 24/7 support!
If you need help with lock snapping prevention or need to change locks on your UPVC door, contact Saunders Locksmiths. Our team of experienced locksmiths are available 24/7 to assist you with all of your emergency locksmith needs.
Don’t hesitate to reach out to us for professional and reliable service. We are committed to providing our customers with the best security solutions to keep their homes and businesses safe. Our services are also available in Portsmouth, Gosport, Waterlooville, Fareham, Havant, and Southampton!
Frequently Asked Questions about Anti-Snap Locks
Here at Saunders Locksmiths, we get many different questions about anti-snap locks and we think it’s important for everyone to know exactly what they are. That’s why our team has put together the most common questions we receive so that you can find the answers you need!
What is an Anti Snap Lock?
An anti snap lock is a type of lock that is designed to protect your home or business against the increasingly popular technique of lock snapping. Lock snapping is when a burglar breaks the lock cylinder in half and then uses pliers or a screwdriver to manipulate the locking mechanism. Anti snap locks have features that make them much more difficult to break, such as hardened steel bars or plates that prevent the lock from being snapped in half. They are a highly effective way to improve your home security and deter burglars.
What is a Snap Safe Lock?
A snap safe lock is a high-security lock designed to resist lock snapping, one of the most common methods used by burglars to gain entry to a property. These locks are made with materials that are resistant to snapping, such as hardened steel or reinforced plastic. They may also feature anti-drill and anti-pick mechanisms to make them even more secure. Snap safe locks are a great investment in your home security, providing peace of mind and protection against burglars.
What is the Best Anti Snap Lock?
Choosing the best anti snap lock for your needs can be challenging, as there are many different types and brands available on the market. However, there are a few things to look for when selecting a high-quality anti snap lock. First, make sure it is certified to meet the British Standard BS 3621 or TS 007. This means it has been rigorously tested and meets the industry’s highest standards for security. Second, look for locks with hardened steel bars or plates, as these will be much more difficult to snap. Finally, consider investing in a lock with a 3-star diamond rating from Sold Secure, indicating it has been tested to the highest standards and is one of the most secure locks available.
What is a Snap Resistant Lock?
A snap resistant lock is a type of high-security lock designed to resist lock snapping, which is becoming an increasingly common method used by burglars. These locks are made with materials and mechanisms that make them much more difficult to break or manipulate, such as reinforced steel plates or complex locking mechanisms. Snap resistant locks are a great way to improve your home security and protect your property against burglars.
What is a 3 Star Diamond Anti Snap Lock?
A 3-star diamond anti snap lock is a top-of-the-line lock that has been tested and approved to meet the highest security standards. This type of lock has been rigorously tested by Sold Secure, an independent security product testing organisation, and has received the highest possible rating. A 3-star diamond anti snap lock is made with materials that are resistant to snapping and is designed with complex locking mechanisms to provide maximum security. Investing in a 3-star diamond anti snap lock is an excellent way to protect your home or business against burglary and theft.
