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Case Study: My Front Doors UPVC Door Lock Won’t Open

Do I Need a New Door?

A client from Bradford experienced difficulty in unlocking his UPVC door; after searching for help and guidance from a renowned UPVC door company, he was informed that the only solution would be to replace the entire door. This replacement was quoted at a hefty price of £850. Fortunately, upon discovering our UPVC door repair services, he decided to reach out to us for assistance.

Whilst this client was told he’d need a new door, this is absolutely not true. The issue at hand was the main multipoint mechanism, which refers to the extended locking strip located along the edge of the UPVC door. Specifically, the gearbox situated within the centre case of the locking strip was the culprit in this scenario.

Fortunately, as professional Bradford locksmiths, we offer a wide selection of multi-point gearboxes, making the solution straightforward and replacing the problematic component within the UPVC door.

The customer was over the moon that their UPVC door repair was a fraction of the cost of a new door.

UPVC Lock Maintenance

Several measures can be taken to effectively uphold the condition of your UPVC lock.

UPVC doors consist of two main components: the outer frame and the inner panel. During installation, the inner panel is typically positioned with plastic wedges, a process known as “toe and heeling.” Over time, fluctuations in temperature can cause the door to shift slightly, leading to challenges in locking. This misalignment places stress on the locking mechanism, eventually causing it to malfunction.


Basic Preventive Steps:

For the majority of modern UPVC doors, the hinges are adjustable. Should you notice your UPVC door sticking against the frame, it’s an indication that the hinges require adjustment. Neglecting this adjustment can result in the failure of the locking mechanism. In many instances, a simple Allen key (as pictured) can be used to perform this adjustment. By taking this step, you can enhance the effectiveness of your UPVC lock.

Another region where adjustments can be made is on the frame’s side. Often, the keeps (which are the plates on the frame where the hooks of your UPVC lock engage) can be fine-tuned. This adjustment can usually be carried out using either a screwdriver or an Allen key.

Lubricating Your UPVC Door Mechanism

This holds significant importance as every component of the mechanism consists of metal. Without proper lubrication, your UPVC door lock will experience faster wear and tear, potentially undermining the manufacturer’s intended 10-year lifespan.

For the majority of situations, adjusting your UPVC door is feasible. However, with older UPVC doors, the “toe and heeling” method might be the sole option for adjustment.


Regularly clean the lock and its surrounding area to prevent the accumulation of dirt and grime. Use a mild detergent and a soft cloth to clean the lock mechanism and the door’s surface. Avoid using abrasive cleaners that could damage the lock’s finish.


If you notice difficulty in locking or unlocking your UPVC door, it might be due to misalignment. Check that the door is properly aligned with the frame. Misalignment can put unnecessary stress on the lock mechanism and compromise security.


Perform routine inspections of your UPVC door locks, checking for signs of wear, rust, or damage. Address any issues promptly by contacting a professional locksmith to repair or replace the lock as needed.

Upgrades and Replacements

If your UPVC door locks are outdated or show signs of wear, consider upgrading to more advanced locks with enhanced security features. Investing in high-quality locks can significantly deter potential intruders.

UPVC door locks are an integral component of your property’s security system. Understanding the different types of locks, practising proper maintenance, and considering important factors will help you make informed decisions to safeguard your home or business. By prioritising security and staying proactive, you can enjoy peace of mind knowing that your UPVC door locks are effectively protecting your property from potential threats. If you have any specific questions or concerns about UPVC door locks, don’t hesitate to reach out to a professional locksmith for expert advice and assistance.

If you’re not comfortable with making these adjustments on your own, feel free to reach out to the Bradford Locksmiths at No Shut Sure Lock for assistance. We’ll be more than willing to provide help, call today.

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