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uPVC Door Lock Replacement

door locking mechanism
uPVC patio door lock replacement
Inspecting door locking mechanism

Replacing uPVC Window and Door Locks

Our locksmiths repair uPVC door locks & double glazing window locking mechanisms*.

Nowadays, double glazing windows and doors are quite advanced and adjustable at various points of the uPVC frame profile. As uPVC frames can move over time and can cause locks to become out of alignment, it is useful to make those adjustments to keep the doors and windows operational.

However, neglect those adjustments when they are needed, then the locking mechanism can suffer from becoming worn out sooner and possibly broken. It will mean more cost to repair and replace parts such as lockcases, barrels, etc. Our locksmith workers can carry out an inspection and provide competitive replacement quotes for different uPVC lock types including the main ones listed here.

  • Key operated security bolts
  • Multipoint locks
  • Euro Cylinder locks
  • Mortice locks

Multipoint Lock Experts

Multipoint locking mechanisms are more popular than ever before for double glazing door applications. They benefit from using split or solid spindles each with their own advantages. We stock those versions and more of multipoint locks with centrally located deadbolts to use in your home or on commercial premises. Our locksmith experts can replace Euro cylinder and the more recent cylinder free locking mechanisms if you have a problematical device. Get a free quote or ask for an inspection.
We deal in many locking points & operations:
  • Lift Lever
  • Latch Bolt
  • Security Pins
  • Lightlatch Locking
  • Automatic Locking
  • Hooks and Pins
  • Wedge Bolts
  • Key Wind Type

Locking Problems

  • 1
    Lock Mechanism Jammed

    If the lock is jammed and does not allow the key to fit or does fit but not turn, it usually indicates a problem with the (Euro) cylinder. A replacement approved Euro cylinder will be required.

    The reasons for this to happen can vary from a cheap fitted lock, synchronisation failure to damaged mechanism. Bolton Glass Fix will provide a replacement lock that is of high quality and British Standard approved to ensure your home is protected for many years to come.

  • 2
    Window Or Door Not Locking

    Where a window or door will not lock, we will check the strikes are in the correct places to allow proper function of appliances attached to uPVC frames. Our expert professional will inspect the hinges and the seals and adjust where necessary. If the lock is still not functioning, then our experienced staff will check the hardware and identify the defective part that is causing the issue.

  • 3
    Unable To Close Door

    Not being able to shut the door or the window can mean that the lock mechanism is not in align with the receiving latch and needs adjustment. Sometimes, the rubber door or window seals and spacers are not in place correctly which can obstruct the closing path of the frame. Our Glass Fix experts use specialist tools to make the required modifications to enable you to close your uPVC door or window.

  • 4
    Broken Handle And Lock

    A broken handle and lock can prevent you from locking the door or window. With close inspection, if you notice any physical damage to the lock or handle, it is likely that you to replace the part. When using the opening lever, you notice it does not quite feel right or ‘floppy’, it is due to a worn or a faulty hardware and will require replacing.

    The locking mechanism may be damaged if you have to keep rattling the key up and down to turn the lock or if the multipoint hooks no longer latch to the frame. Our expert can check your double glazing unit and advice on what may need removing and replaced.

To Change Your Window Locks Give Us A Call

We have experience in window locking handle repairs or replacements
Call Bolton

Frequently Asked Questions


  • How do I measure my uPVC multipoint door lock?

    With so many types of multipoint door locks, it can be tricky to measure it correctly. It is fine to offer a guide in how to measure your lock where you get the measurements for the backset, centres and the locking point distances, but we prefer to carry out an inspection to ensure that the fit is accurate when installed. You can send us a picture with a ruler placed next to your device and receive an approximate quote before we come out and carry out a lock replacement.

  • Can you supply just the locking hardware that I need?

    Yes we can provided it is in stock. Please ensure you measure correctly and state the required specification as parts cannot be returned if they do not fit once packaging is opened. This does not affect your right to return if there is a manufacturing defect.

  • Do you install digital or smart locks?

    Unfortunately, Bolton Glass Fix currently do not replace smart locks. However, it is a new trend that is growing and we are aware of the smart technology. We are taking steps in researching the industry and will soon add smart installations to our services. Please check again in the future as we may have updated this section.