5 Signs Your Window Seal Is Broken and How to Fix It

Table of Contents

Faulty Seals

In the UK, we’re no strangers to temperamental weather. With the strong winds and constant rain, it’s no wonder that window seal failure is a common household issue. Recent data from the Energy Saving Trust suggests that up to 18% of a home’s heat can be lost through windows with poor insulation or failed seals. That’s a significant amount of wasted energy and money.

But how do you know if your window seal is broken? And more importantly, what can you do about it? Let’s look at the key signs of a broken window seal.

Condensation Between Panes

The most obvious sign of a broken seal is fog or moisture between the glass panes of double or triple-glazed windows. If you can’t wipe away condensation from either side of the window, it’s likely trapped inside due to a failed seal.

Why it happens: Over time, the seal around the edges of the glass unit can degrade due to temperature fluctuations, UV exposure, and natural wear and tear. Once the seal fails, moisture can enter the space between the panes.

Fix: Unfortunately, there’s no reliable DIY solution for this problem. You’ll need to replace either the glass unit or the entire window. A professional glazier like Plastic Surgery can do an assessment and determine whether a full window replacement is necessary or if replacing just the glass unit will suffice.

Noticeable Draught

Feel a breeze even when your window is closed? This could indicate a seal failure, allowing outside air to seep in. Draughts not only make your home uncomfortable but can significantly increase your energy bills.

Why it happens: Seals can shrink, harden, or become brittle over time, creating gaps that allow air to pass through. Physical damage to the window frame or sash can also create openings for draughts.

Fix: As a temporary solution, try weatherstripping. Apply adhesive-backed foam tape or rubber strips around the window frame to block airflow. Silicone caulk can also be used to seal small gaps. For a permanent fix, you may need to replace the window or have a professional reseal it.

DIY cost: Weatherstripping materials typically cost between £5 and £20 per window, depending on the type and quality.

Energy saving potential: The Energy Saving Trust estimates that draught-proofing windows and doors can save the average UK household about £25 per year on energy bills. While this may seem small, remember that it’s a cumulative saving over the years.

Increased Energy Bills

If your heating or cooling costs have spiked without explanation, faulty window seals could be the culprit. They allow temperature-controlled air to escape, forcing your HVAC system to work overtime. With energy prices rising, efficient windows are more important than ever for keeping costs down.

Fix: Start by sealing any visible gaps with caulk. If bills remain high, consider upgrading to energy-efficient windows. Look for windows with a high British Fenestration Rating Council (BFRC) rating – A++ is the most efficient.

Long-term savings: While the upfront cost of new windows is significant, the Energy Saving Trust estimates that installing A++ rated double glazing in a single-glazed semi-detached house could save around £95 per year on energy bills.

Warped or Damaged Frame

A warped or damaged window frame can break the seal and cause ongoing issues. This problem is particularly common in wooden frames, which can swell, shrink, or rot depending on weather conditions.

Why it happens: Exposure to moisture, extreme temperatures, and general wear and tear can all contribute to frame damage. Poor installation can also lead to warping over time.

Fix: Minor warping might be resolved by adjusting the window hardware or planning down swollen areas. For wooden frames, you might be able to repair small areas of rot with wood filler. However, severe damage usually calls for frame replacement. Consult a window specialist to determine the best course of action.

Prevention: Regular maintenance can extend the life of your window frames. For wooden frames, ensure they’re properly painted or sealed to protect against moisture. Clean tracks and weep holes regularly to prevent debris build-up.

Audible Whistling

Hear whistling sounds when it’s windy outside? That’s air forcing its way through a compromised seal. Not only is this annoying, but it’s also a clear sign that your windows are not performing efficiently.

Why it matters: Besides the irritation factor, whistling windows are a sure sign of energy loss. The Carbon Trust notes that even a 3mm gap around a window can leak as much warm air as a small radiator emits.

Fix: Identify the exact location of the whistle. You might be able to plug small gaps with caulk or weatherstripping. For persistent whistles, professional repair or replacement is your best bet.

DIY detection: On a windy day, hold a lit candle near your window frames. If the flame flickers or goes out, you’ve found your draught source.

Prevention Is Key

While some seal issues are unavoidable, you can take steps to protect your windows:

  • Clean windows and tracks regularly to prevent debris build-up
  • Ensure proper drainage to avoid water damage
  • Open windows occasionally to release trapped moisture
  • Consider installing storm windows for added protection
  • Use window treatments like heavy curtains or cellular shades to provide an extra layer of insulation

When to Call a Professional

While some minor seal issues can be tackled as DIY projects, it’s often best to consult an expert. At Plastic Surgery, we can accurately diagnose the problem and offer long-lasting solutions. We can also advise whether repair or full replacement is more cost-effective in the long run.

What to expect: Our team will typically:

  1. Inspect all your windows for signs of seal failure
  2. Check for proper operation and alignment
  3. Assess the condition of frames and sashes
  4. Provide a detailed report of findings
  5. Offer recommendations for repair or replacement
  6. Provide a cost estimate for the work

The Environmental Impact

It’s worth noting that addressing window seal problems isn’t just about comfort and cost savings – it’s also an environmental issue. The Committee on Climate Change reports that UK homes account for about 15% of the country’s greenhouse gas emissions. Improving home energy efficiency, including maintaining proper window seals, is crucial for meeting the UK’s carbon reduction targets.

Conclusion

Window seals play a crucial role in your home’s energy efficiency, comfort, and overall maintenance. By being vigilant for signs of failure and addressing issues promptly, you can save money, reduce your carbon footprint, and maintain a comfortable living environment.

Remember, while the upfront cost of window repair or replacement can be significant, the long-term benefits of energy savings and increased property value make it a worthwhile investment. Don’t let a draught drain your wallet or your home’s comfort – take action at the first sign of trouble.

If you’re facing any of these window seal issues and need expert assistance, don’t hesitate to contact us at Plastic Surgery. Our team can help diagnose your window problems and provide efficient, cost-effective solutions tailored to your home’s needs.

Frequently Asked Questions

1. How long do window seals typically last?

 On average, window seals can last between 10 to 20 years. However, this can vary depending on factors such as climate, maintenance, and window quality. Regular inspections can help catch issues early and extend the life of your seals.

2. Can I replace a window seal myself? 

While you can apply temporary fixes like weatherstripping or caulking, replacing a window seal properly often requires professional expertise. Incorrect installation can lead to further problems down the line.

3. Will my home insurance cover window seal repair? 

Generally, home insurance doesn’t cover gradual damage like seal failure due to wear and tear. However, if the damage is sudden and accidental (e.g., storm damage), your policy might cover it. Always check with your insurance provider for specifics.

4. How can I prevent window seal failure? 

Regular maintenance is key. Clean your windows and frames regularly, ensure proper drainage, and address any minor issues promptly. Also, avoid power-washing your windows, as the high pressure can damage seals.

5. Are there any energy-efficient alternatives to traditional windows? 

Yes, there are several options. Triple-glazed windows offer excellent insulation, while low-E glass coatings can help reflect heat back into your home. Some manufacturers also offer vacuum-sealed units for superior thermal performance. Consult with a window specialist to find the best option for your home and budget.