UPVC Locks
& Upgrades

Cusworth Master Locksmiths specialises in repairing and upgrading uPVC and composite door locks across Stockport, Wilmslow and Cheshire. We understand that uPVC and composite doors offer a low-maintenance and cost-effective solution, but as many installations now exceed 30 years of age, faults are becoming more common.

Whether your uPVC or composite door is jammed, refuses to lock, or has a key stuck, our expert team can provide skilled repairs with minimal fuss.

Our services are focused on delivering the most cost-effective solutions — we only replace the parts that need changing. For obsolete parts, we offer affordable alternatives that save you money compared to full door replacements.

Lock snapping is a common burglary method used by criminals to gain access to your home, especially in areas like Stockport and Cheshire. The technique targets the weak point of a Euro Profile Cylinder, commonly found on most uPVC doors. By snapping the cylinder, burglars can manipulate the lock and enter your property quietly within a matter of seconds.

Although your uPVC door might have multiple locking points, the cylinder is the weakest part of the system. Once compromised, the locking points are rendered ineffective, making your home vulnerable.

In 2019, around 8% of all burglaries involved lock snapping, a significant reduction from 15% in 2011, thanks to the introduction of anti-snap locks. However, locally in Stockport and Cheshire, we have still seen incidents of lock snapping, and it remains a serious concern.

A standard euro cylinder lock, which is commonly found in older uPVC doors, is vulnerable if it was fitted before 2011, or if it does not carry the 3-star logo. In these cases, it is likely that the lock is not resistant to lock snapping.

Locks bearing the SS312 Diamond approval are the highest level of certification for a euro cylinder lock, offering robust resistance to lock snapping.

locks that meet the TS007 3 Star Kitemark standard are also resistant to lock snapping, providing excellent protection for your home the logo can be found anywhere on the lock.

Certified by BSI, Sold Secure Diamond and Secured by Design, these cylinders have been independently tested to provide excellent resistance against lock snapping, ensuring robust protection for your home.

The Brisant Ultion lock is SS312 Diamond approved and provides exceptional protection against lock snapping attacks, offering top-tier security for your property.

Locks that meet the TS007 3 Star Kitemark standard are designed to withstand lock snapping, offering a great balance of security and peace of mind for homeowners.

Upgrading your uPVC and composite door handles can also significantly improve your home’s security. We recommend handles that offer multiple security features, making it much harder for burglars to bypass them. One such feature is an internal switch, which allows you to double lock the door from the inside, even if the cylinder is broken or unlocked with a key.

For doors that are rarely locked from the outside, like patio doors, we offer LockLock handles that can be fitted without an external cylinder, reducing the opportunity for burglars to target the lock. These handles, when paired with a 1-star Kitemark cylinder or above, meet the 3-star Kitemark standard and have been independently tested and proven to protect against lock snapping.

Our upgraded handles are 210% stronger than standard uPVC door handles. Built with durable steel alloys, they are resistant to blowtorch attacks, and their curved design prevents burglars from gripping the handle with tools. Additionally, the spindle is upgraded so that any excessive force applied to the handle will cause it to twist, offering further protection for your door and locking mechanism.

At Cusworth Master Locksmiths, we specialise in repairing and upgrading uPVC and composite door locks, providing the most cost-effective solutions to restore your home’s security. Whether you’re dealing with a jammed lock or need a complete lock replacement, we are committed to offering the best options to keep your property safe.

We also assess your existing locks and recommend anti-snap solutions to protect your home against the growing threat of lock snapping in Stockport, Wilmslow, and Cheshire. Our experts will help you understand which locks need upgrading and provide you with the best options available.

Our team is available 24/7 for emergency locksmith services across Stockport, Wilmslow and Cheshire. We pride ourselves on delivering prompt and professional repairs to keep your property secure at all times.

Lastly, we believe in fair pricing for all our services, ensuring you receive high-quality security solutions at affordable rates. With no hidden fees and transparent pricing, we aim to give you peace of mind knowing you’re receiving excellent value for your money.