Why Is Your UPVC Window Not Closing Properly?

Your windows are a key part of your home security, but it can be concerning when they won’t close properly. Yet, like any part of your home, issues can develop over time.

If your window handle won’t close fully, your uPVC window is stuck in a locked position, or your window is not shutting properly, read below for our guide. We have compiled some of the common issues that can cause your uPVC window to not close properly, to help you troubleshoot your issue.

Most Common uPVC Window Problems You’ll Face

Some of the most common problems that you’ll face with uPVC windows include:

The window is not closing properly or is stiff when opening
Faulty or damaged hardware, such as screws, locks and hinges
Sagging window
Expanded frame
Damaged seal

1. The Window Hinges Have Worn Out

When a noticeable gap forms at the corner of your windows, this could be the result of your window hinges wearing out. The hinges are a key part of your windows, bearing the brunt of the constant usage. Strong winds and harsh elements can also take a toll on your windows, and even the sturdiest ones can show signs of wear and tear over time.

The Solution

The best solution would be to replace the hinges. All you need to do is measure the hinge’s length, track width, and stack height, and note the orientation of the window (either side hung or top hung). You’ll also need to determine the type of hinge you need. If you have any apprehension in this situation, your best bet is to call in a professional, who’ll be able to determine the best hinge and install it for you, using their expertise.

2. The Window Is Not Shutting Properly

Another common problem is a sagging window. Your window should fit snugly within the frame, but if you have noticed that the bottom of the panel is rubbing against the bottom of the frame and it is not opening or shutting properly, this is a clear sign that the window has sagged.

When the window won’t close properly, it can let in draughts and unwanted noise into your home, making it less comfortable.

The Solution

Firstly, check that you have adjustable butt hinges. Look for a small adjuster screw in the centre of the hinge, on the side attached to the window frame. With an allen key, you will be able to move the window in with clockwise turns and move the window out with counter-clockwise turns. Before you start adjusting the hinges, identify the cause of the issue. If the window is sticking, note where exactly the window is rubbing against the frame, whereas if there is a gap, note where the gaps are around the window edge.

Your goal should be to move the window sash so that it sits evenly against the window frame all around. To pull the window inwards, turn the adjuster on the hinge closest to the problem, clockwise. Turning the top hinge clockwise will pull the top of the window in, and turning the bottom hinge clockwise will pull the bottom of the window in.

If you need to pull the window outwards to stop it running on the inside edge, turn the adjuster on the hinge closest to the problem area counter-clockwise.

With small, measured adjustments to both hinges, you can move the window into the correct position.

3. The Window Is Not Locking

A uPVC window that is not locking is often caused by debris in the window tracks, a sticking mechanism, loose screws or misalignment. Where a functional window is paramount for security and peace of mind, a broken locking system will compromise this.

The Solution

Firstly, remove any dirt or debris from the window tracks, frame and locking points with a brush or vacuum.

If this window is still not locking, lubricate the hinges, lock and handle. Do not use a solvent-based spray, as this can damage the parts. To check the handle, tighten any visible screws.

You may also find that the ‘keeps’ or receiver plates on the window frame are misaligned. Adjust their position so that they can better receive the locking point.

If you find that the hinges are loose or damaged, or the locking mechanism appears broken or is making a grinding noise, it may need to be replaced. You may be able to identify and replace broken parts yourself; however, if you feel uncomfortable doing so, call in a professional. A professional will be able to identify and fix more complex issues that extend beyond DIY adjustments.

4. The Window Handle Won’t Close Fully

A window handle that won’t close fully is often caused by dirt or debris, loose screws, misaligned hinges, or a faulty locking mechanism.

The Solution

Firstly, make sure that there is no dirt or debris in the window tracks. If this does not work, tighten loose screws and adjust the handle.

If the handle feels stiff, apply a small amount of lubricant to the locking mechanism to help it move more freely.

If the handle of your window appears worn out or is broken, it will likely need to be replaced.

How To Prevent These Issues

There are preventative measures you can take to avoid future issues with your uPVC windows.

Regular cleaning will keep the window tracks, frames and hinges clean from dirt and debris, preventing a buildup that can impede operation.

Applying a silicone-based lubricant to the window hinges, window handles, and multi-point locking mechanisms annually will maintain smooth operation and prevent stiffness.

You should also periodically check the rubber seals for signs of wear and damage. When they start to deteriorate, they need to be replaced.

When To Call In The Experts

When a uPVC window won’t close, it’ll likely be due to a common fault, which can often be sorted with some DIY knowledge. However, you may find that you need to call in some expert help or have your windows replaced.

Here at Homeglaze, we are leading experts on uPVC windows in Essex. With years of experience, our team have wide knowledge and is experienced in installing a wide range of windows in various styles and materials. Our team will help you to find the perfect match for your needs and handle the whole installation process, from consultation to final installation and aftercare.