How to Install and Replace UPVC Window Stays- Step-by-Step Guide

  • jack kun
  • 2024/07/01
  • 5

How to Install and Replace UPVC Window Stays: A Comprehensive Guide

UPVC window stays are essential components that restrict the opening of windows for safety and ventilation purposes. Proper installation and replacement of these stays is crucial to ensure the smooth operation and security of your windows. This step-by-step guide will provide you with detailed instructions on how to install and replace UPVC window stays.

Gathering Materials and Tools

Before you begin, gather the necessary tools and materials:

– UPVC window stay

– Screwdriver

– Drill

– Measuring tape

– Pencil

– Spirit level (optional)

Step 1: Removing the Old Window Stay

1. Open the window fully and locate the existing window stay.

2. Use a screwdriver to remove the screws that hold the stay in place.

3. Gently pull the old stay out of the channel.

4. Clean the channel thoroughly to remove any dirt or debris.

Step 2: Installing the New Window Stay

1. Measure the width of the window frame where the stay will be installed.

2. Mark the center of the frame with a pencil.

3. If using a drill, create a pilot hole at the marked point.

4. Place the new stay in the center of the channel and align the screw holes.

5. Drive screws into the holes until the stay is securely fastened.

Step 3: Adjusting the Stay

1. Adjust the stay to the desired opening height by moving the slider or lock.

2. Ensure that the window can be opened and closed smoothly without any obstruction.

3. If necessary, use a spirit level to check that the stay is installed horizontally.

Step 4: Tightening the Screws and Cleaning

1. Tighten the screws on the stay to secure it firmly.

2. Wipe down the window stay and surrounding area with a damp cloth.

3. Remove any excess sealant or caulk if applied.


If you encounter any issues during the installation or replacement process, refer to the following troubleshooting tips:

– Stay not holding window open: Adjust the stay to increase its hold strength. Check the screws for tightness and the channel for any obstructions.

– Window not opening smoothly: Lubricate the stay mechanism or adjust the stay’s height to reduce friction.

– Loose screw holes: Repair stripped screw holes by inserting toothpicks dipped in wood glue or using plastic anchors.


Installing and replacing UPVC window stays is a straightforward task that can be completed in a few simple steps. By following the instructions outlined in this guide, you can ensure the proper functioning of your windows and enhance their safety. Remember to use the correct tools, take safety precautions, and troubleshoot any issues that arise to achieve a successful installation or replacement.

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