Home security is important all year round, especially during the festive season when you may be out of the house more and thieves are more active.

As well as securing your doors, it’s also essential to secure your windows and fix any broken locking mechanism. A broken window, whether it’s a lock or window handle, can be a worry. UPVC windows’ locks have a lifespan of 5-8 years on average however, as they are a moving part they are more prone to wear and tear than a window frame for example.

In this article, we’re going to look at how to fix window locking mechanism easily and give you peace of mind this holiday season, so you leave no window open but all are locked shut to secure your home.

Identifying the Type of Window Lock

If one of your windows has a broken mechanism, there’s no need to immediately think that you need to replace the entire window. Firstly, identify what type of window lock your window has. Below are some popular designs:

Sash locks

A sash window lock stops the window from being opened from the outside. Unlike some other windows, a sash lock doesn’t act as a handle latch and you need to slide the lock up to open the window.

Casement locks

To identify a casement lock on a window, look for a window handle or lever mechanism typically located along the window’s vertical or horizontal edge, allowing you to open your window and close and lock it securely in a swinging motion.

Sliding window locks

To identify a sliding window lock, check for a latch or lever usually positioned on the horizontal track of the window frame, enabling it to be locked shut by locking the sliding panel.

Gathering Necessary Tools and Materials

Once you have identified your UPVC window lock, you can gather the tools you need to make your repair.

The tools you need include:

  • Screwdriver – For removing screws from the existing lock.
  • A replacement window lock – Make sure that you ensure it matches the size and type of your existing one.
  • Tape measure – To measure dimensions for proper alignment and position.
  • A pencil or pen – For marking positions and aligning the new lock accurately.

Depending on the specific type of window lock and installation requirements, you might also need:

  • A drill – If new holes need to be drilled for the installation.
  • Drill bits – Matching the size required for the screws or bolts.

Step-by-Step Repair Instructions

  1. Start by gathering the tools required, including your screwdriver, tape measure, pencil, and the replacement window lock.
  2. Remove your old lock – Unscrew and remove the existing window lock with the screwdriver.
  3. Measure and align – Use the measuring tape to determine the proper placement for the new lock. Mark the position with a pencil.
  4. Prepare your new lock – Ensure the replacement window lock matches the size and type of the old one.
  5. Drill holes (if needed) – If the new lock requires different screw placements, use a drill and appropriate drill bits to create holes in the marked positions.
  6. Install your new lock – Attach the replacement lock using the provided screws or bolts. Tighten securely with the screwdriver to make sure it is attached.
  7. Test – Test the opening mechanism and confirm that the new window lock functions correctly. A jammed or stuck window is sign that there is a problem with the repair.
  8. Adjust if needed – If the lock feels too tight or loose, make any necessary adjustments according to the lock’s instructions.
  9. Contact a professional, if there are repair issues. Cosyhomes Windows offer the best service in Surrey and are highly experienced in repairs for a window mechanism that needs fixing.

We hope that you found this article useful in helping you to identify and replace double glazed windows’ locks.

If you need expert advice, we can help. We are highly experienced UPVC window professionals and can replace and repair windows that have broken locks, are jammed shut, or are stuck in an open position.

Give us a call now on 0208 397 4040 or contact us via our online form and one of our team will get back to you shortly. And remember, keep your home secure this Christmas.