Blown windows are a common issue in homes across the United Kingdom, leading to increased energy bills, reduced comfort, and potential damage to the property. Understanding how to identify, diagnose, and fix a blown window is essential for maintaining the efficiency and integrity of your home.
Considering replacement windows?
Key Takeaways
- Identifying a blown window involves looking for signs like condensation between panes and visible damage.
- Common causes include age, improper installation, and environmental factors.
- Preparation for repair is crucial, involving safety measures and deciding between DIY and professional help.
Understanding and Diagnosing a Blown Window
Identifying a Blown Window
The first step in addressing a blown window is to correctly identify one. The most obvious sign is condensation between the panes of glass, which cannot be wiped away. This is often accompanied by a noticeable drop in thermal efficiency, making rooms feel colder. Other indicators include visible damage to the window frame or sealant and a feeling of draughts coming through the window.
Visual Indicators
- Condensation between panes
- Visible cracks or damage
- Reduced thermal efficiency
Common Causes of Window Blowing
Understanding why windows blow is key to preventing future issues. In the UK, several factors contribute to this problem:
Age and Wear and Tear
Over time, window seals degrade, especially in older properties. This natural wear and tear can be accelerated by the UK’s variable weather conditions, leading to eventual failure.
Improper Installation
Windows that have not been installed correctly are far more likely to fail. Ensuring that installation is carried out by reputable professionals is vital.
Environmental Factors
The UK’s weather can be harsh, with strong winds, heavy rain, and wide temperature fluctuations all contributing to the deterioration of window seals.
| Cause | Solution |
| Age and Wear | Regular maintenance and checks |
| Improper Installation | Professional reinstallation |
| Environmental Factors | Protective measures, e.g., storm windows |
Preparation for Repair
Before attempting to fix a blown window, it’s important to prepare adequately. This involves gathering the necessary tools and materials, such as a new pane of glass, sealant, and safety equipment. Homeowners must also decide whether to undertake the repair themselves or seek professional assistance. Given the complexity and potential for further damage, many opt for the latter, especially in cases where the window is large or located in a difficult-to-reach area.
Safety Measures and Tools Required
Safety cannot be overstated when dealing with glass and window repairs. Protective gloves, goggles, and clothing are essential to prevent injury. Additionally, the right tools for the job, including a glass cutter, putty knife, and sealant, must be on hand before beginning the work.
DIY vs. Professional Repair
While some may be tempted to fix a blown window themselves, professional repair services offer several advantages. They have the expertise to diagnose the issue accurately, ensure a high-quality repair, and often provide warranties on their work. For those in the UK, finding a reputable window repair service can be done through recommendations, online reviews, or trade associations.
| DIY Repair | Professional Repair |
| Cost-effective for minor issues | Higher cost but includes a warranty |
| Requires time and effort | Saves time and ensures quality |
| Risk of improper installation | Expert diagnosis and repair |
Step-by-Step Guide to Fixing a Blown Window
Fixing a blown window involves several key steps, from removing the damaged pane to sealing the new one in place. Here’s how to approach the repair:
Removing the Damaged Pane
- Safety First: Ensure you’re wearing protective gloves and goggles to avoid injury.
- Remove the Beading: Carefully prise away the beading or strips holding the glass in place.
- Lift Out the Pane: Gently remove the damaged glass pane, taking care to avoid breaking it further.
Cleaning and Preparing the Frame
- Clean the Area: Remove any old sealant, debris, or dirt from the frame to ensure a clean surface for the new pane.
- Check for Damage: Inspect the frame for any damage that might compromise the new installation.
Installing the New Pane
- Apply Sealant: Apply a new layer of sealant around the frame where the glass will sit.
- Place the New Glass: Carefully set the new pane into the frame, pressing it firmly into the sealant.
Sealing and Finishing Touches
- Reapply the Beading: Replace the beading or strips to secure the glass in place.
- Clean Up: Wipe away any excess sealant and clean the glass to finish.
Preventive Measures to Avoid Future Issues
To prevent future blown windows, consider the following tips:
- Regular Maintenance: Check and maintain window seals regularly, especially after harsh weather.
- Quality Windows: Invest in high-quality windows with strong, durable seals.
- Professional Installation: Ensure windows are installed by experienced professionals to avoid future issues.
FAQs on Fixing Blown Windows
In many cases, the glass pane can be replaced without the need to replace the entire window. However, if the frame is damaged, a full replacement may be necessary.
Costs can vary widely depending on the size of the window and whether you’re doing it yourself or hiring a professional. DIY repairs might only require the cost of materials, while professional repairs can range from £100 to £500 or more in the UK.
Regular maintenance, including checking seals and installing storm windows in particularly vulnerable areas, can help prevent windows from blowing. Additionally, ensuring proper installation and using high-quality windows are key preventive measures.
