How to Adjust uPVC Windows to Stop Draughts: A Practical Guide

uPVC windows are a popular choice for modern homes due to their durability, energy efficiency, and low maintenance. However, over time, you may notice draughts sneaking in through your uPVC windows, which can make your home feel colder and increase your energy bills. The good news is that adjusting uPVC windows to stop draughts is a relatively simple task that you can do yourself. In this blog, we’ll walk you through the steps to ensure your windows are draught-free and functioning optimally.

Why Do Draughts Occur in uPVC Windows?

Before diving into the solution, it’s important to understand why draughts occur in the first place. Common causes include:

1. Wear and Tear: Over time, the seals, and gaskets around your uPVC windows can wear out, leading to gaps.
2. Misalignment: Windows can become misaligned due to settling of the house or improper installation.
3. Loose Hardware: Hinges, handles, and locks can loosen, causing the window to not close tightly.
4. Dirt and Debris: Accumulation of dirt and debris in the tracks or around the seals can prevent the window from closing properly.

Tools You’ll Need

Before you start, gather the following tools:

• Screwdriver (Phillips and flathead)
• Allen key (usually 4mm or 5mm)
• Silicone spray or lubricant
• Cleaning cloth
• Replacement gaskets or seals (if needed)

Step-by-Step Guide to Adjusting uPVC Windows

1. Inspect the Window

Start by inspecting the window to identify where the draught is coming from. Check the seals, hinges, and locking mechanisms. Look for any visible gaps or signs of wear.

2. Clean the Window and Tracks

Dirt and debris can prevent the window from closing properly. Use a cleaning cloth to wipe down the window tracks, seals, and gaskets. If necessary, use a mild detergent to remove stubborn dirt. Once clean, apply a silicone spray or lubricant to the tracks to ensure smooth operation.

3. Adjust the Hinges

If the window is misaligned, you may need to adjust the hinges. Most uPVC windows have adjustable hinges that can be tightened or loosened using an Allen key.

• Vertical Adjustment: Locate the hinge on the side of the window. There should be a screw or bolt that allows you to move the window up or down. Turn the screw clockwise to raise the window or counterclockwise to lower it.
• Horizontal Adjustment: Some hinges also allow for horizontal adjustment. Look for a screw on the top or bottom of the hinge. Turning this screw will move the window left or right.
• Depth Adjustment: If the window isn’t closing tightly against the frame, you may need to adjust the depth. This is usually done by turning a screw located on the side of the hinge.

4. Tighten the Handles and Locks

Loose handles and locks can prevent the window from closing tightly. Use a screwdriver to tighten any loose screws on the handles and locking mechanisms. If the handle is difficult to turn, apply a small amount of lubricant to the mechanism.

5. Check and Replace Seals

Inspect the rubber seals around the window. If they are cracked, brittle, or missing, they will need to be replaced. Replacement seals are available at most hardware stores and are relatively easy to install. Simply remove the old seal and press the new one into place.

6. Test the Window

After making adjustments, test the window by opening and closing it several times. Check for any remaining draughts by holding a lit candle or a piece of tissue paper near the edges of the window. If the flame flickers or the paper moves, there may still be a gap that needs addressing.

7. Consider Draught Excluders

If you’ve made all the necessary adjustments and still notice draughts, consider using draught excluders. These can be attached to the window frame to block any remaining gaps. They are available in various materials, including foam, brush, and rubber.

Preventative Maintenance Tips

To keep your uPVC windows in top condition and prevent future draughts, follow these maintenance tips:

• Regular Cleaning: Clean the windows and tracks regularly to prevent dirt and debris buildup.
• Lubricate Moving Parts: Apply silicone spray or lubricant to hinges, locks, and handles every six months to ensure smooth operation.
• Inspect Seals: Check the seals and gaskets annually for signs of wear and replace them as needed.
• Tighten Hardware: Periodically check and tighten any loose screws or bolts on the window hardware.

Adjusting uPVC windows to stop draughts is a straightforward process that can significantly improve your home’s comfort and energy efficiency. By following the steps outlined in this guide, you can identify and fix the source of draughts, ensuring your windows function as they should. Regular maintenance will also help prolong the life of your UPVC windows and keep them draught-free for years to come.

If you’re unsure about any part of the process or if the draughts persist after making adjustments, it may be worth consulting a professional. However, in most cases, a little DIY effort is all it takes to keep your home warm and cosy.