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Expert Double Glazing Advice

How to Tell the Age of Double Glazing

Windows in a home and how to tell age of double glazing

Old Double Glazing vs New: How to Tell the Age of Double Glazing

As leading double-glazing installers in Leicester, we’re sharing our expertise to help homeowners understand how to tell the age of double glazing. We’ll also share our top tips that indicate when it’s time to replace your windows.

When it comes to home improvement, one area that often gets overlooked is the windows. Windows play a crucial role in maintaining the comfort and energy efficiency of your home. Over time, however, windows can become worn out and less effective. 

Double glazing has been a prevalent addition to homes since the 1970s, and nowadays, most houses, excluding certain period properties, are equipped with it.

As a homeowner, you may not have precise knowledge about the exact installation date or the responsible window company, which can pose difficulties in determining if the windows are still covered by warranty or when they might need to be replaced.

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Understanding Double Glazing

Double glazing, a popular feature in modern homes consists of two panes of glass separated by an insulating layer of air or gas. This construction enhances energy efficiency, reduces noise transmission, and improves overall comfort within your home. However, over time, the performance and durability of double glazing can decline.

Drawbacks of Old Double Glazing

While old double glazing had its advantages, it also had its limitations. Over time, double glazing can lose its effectiveness due to wear and tear. The seals between the glass panes may deteriorate, leading to air leakage and reduced thermal efficiency. The frames of old double glazing may also become worn, allowing drafts to enter your home.

Benefits of New Double Glazed Windows

Over time, advancements in window technology have led to the development of new and improved windows since it was first introduced in the 1970s. 

Investing in new windows offers a range of benefits. Firstly, you can enjoy improved energy efficiency, leading to reduced heating and cooling costs. New windows also enhance the overall appearance of your home, adding value and curb appeal. Modern windows also require less maintenance and offer much higher security features, giving you peace of mind.

How Old is My Double Glazing?

If you’ve recently moved into a new property or can’t recall the last time you replaced your double glazing, the easiest way to determine its age is by visiting the FENSA website. Your window installation contractor should have registered the certification if the windows were fitted after April 2002. 

FENSA is a national scheme designed to ensure that window companies are installing windows that meet the minimum building regulation requirements and be issued with a certificate to confirm this.

However, if your windows were not fitted by a registered FENSA company, or it was a DIY job, then the windows should have had full local authority Building Control Approval. 

Older Double Glazing (Prior 2002)

If your windows don’t show up through the FENSA scheme or Building Control Approval, chances are that they were installed prior to 2002. uPVC windows can last for 20 or even 30 years, depending on a variety of factors.

If you’re unsure whether your windows need replacing, there are signs that can help you determine the age of your double glazing.

Double glazing Leicester - Window fitters Leicester

9 Signs That It’s Time to Replace Your Windows

The first step is to determine when your windows were initially installed. Newer installations often come with documentation or guarantees that provide an accurate timeline. 

However, if this information is unavailable, other signs can still help you estimate the age of your double glazing, and know when it’s time to replace your windows. 

Here are some key things to look out for.

1. Increased Energy Bills

If you notice a significant increase in your energy bills, it could be due to the inefficiency of your windows. Old windows often lack proper insulation, leading to heat loss during winter and heat gain during summer.

Replacing them with newer, more efficient models can help you save on heating and cooling costs in the long run.

2. Condensation and Moisture

Condensation and moisture between the glass panes are common problems with older double glazing that has deteriorated over time.

If you notice foggy or misty windows, it’s a strong indication that the seals have failed and replacement is necessary. Excessive condensation on your windows can indicate poor insulation and can lead to mould growth and damage to the surrounding walls.

3. Drafts and Temperature Fluctuations

If you feel drafts around your windows or notice air leakage even when they are closed, it’s a clear indication that your windows are no longer providing an effective seal. Upgrading to new windows can provide better temperature regulation.

4. UV Damage to Furniture and Flooring

Older windows may lack effective UV protection, causing the sun’s rays to damage your furniture, flooring, and other interior elements. 

If you notice fading or discolouration, it’s time to consider replacing your windows with UV-resistant glazing to preserve your belongings.

5. Difficulty Opening, Closing, or Locking Windows

Over time, wear and tear can affect the functionality of your windows. If you’re struggling with opening, closing, or locking them, your windows may have faulty mechanisms or damaged frames which pose a potential security risk. 

Installing new windows with smoother operation and robust locking mechanisms will enhance both safety and convenience.

6. Visual Wear and Tear

Cracked glass, rotting frames, or peeling paint are signs of significant window damage. These issues not only affect the aesthetics but also compromise the functionality of the windows.

7. Increased Noise Pollution

If you find that outside noise easily enters your home, it’s a sign that your windows are not soundproof. Upgrading to newer windows can significantly reduce noise infiltration.

8. Outdated Appearance

Old, worn-out windows can significantly detract from the overall aesthetic appeal of your home. By replacing them with modern designs, you can elevate the appearance of your property and potentially increase its value.

9. Enhanced Security

Modern windows come with advanced security features that offer greater protection against unwanted intruders. If your current windows lack these essential security enhancements, it’s wise to invest in replacement windows that prioritise the safety of your home.

Conclusion on How to Tell the Age of Double Glazing

Determining the age of double glazing can be done by visiting the FENSA website, where you can find information about the installation date and related details. This is especially useful for windows installed after April 2002 when contractors were required to register window certifications. 

By knowing how to tell the age of double glazing, you can better assess its condition, warranty coverage, and when it might be necessary to consider a replacement.

Old double glazing, while beneficial in the past, can lose its effectiveness over time. Upgrading to new windows offers improved insulation, energy efficiency, and overall comfort. 

By paying attention to the signs that indicate the need for replacement, you can ensure that your home remains well-insulated and secure. Investing in quality windows is a wise decision that can enhance the value and enjoyment of your home for years to come.

Replacement Windows by Phair Windows & Glass, Double Glazing Leicester

Phair Windows & Glass are the go-to installer for double glazing Leicester with over 30 years of experience improving homes across Leicestershire and the East Midlands. For a free no-obligation quote from our expert team, get in touch through our phone or via our online form.

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FAQs about How to Tell the Age of Double Glazing

How do you date double-glazed windows?

To date double-glazed windows, you can check the FENSA website. If the windows were installed after April 2002, the contractor should have registered them, allowing you to find information about their age and installation details.

How old is double glazing?

Double glazing has been around since the 1970s and is a common feature in most homes nowadays, except for older properties. It provides better insulation by having two glass panes with a gap in between, reducing heat loss and improving energy efficiency.

What is the difference between old and new double-glazed windows?

The difference between old and new double-glazed windows lies in their effectiveness and features. Old double-glazed windows may lose efficiency over time due to wear and tear, while new ones incorporate advanced technology for better insulation, durability, and energy efficiency.

Can I replace my windows myself, or should I hire a professional?

While it is possible to replace windows yourself, it is recommended to hire a professional for the best results. Professional window installers have the expertise and tools to ensure proper installation, which is crucial for optimal performance and energy efficiency.

How often should windows be replaced?

The lifespan of windows can vary depending on various factors such as the quality of the windows, climate conditions, and maintenance. On average, windows may need replacement every 20 to 25 years, but signs of deterioration should be monitored to determine the appropriate timing.

How can I tell how old my windows are?

To determine the age of your windows, you can visit the FENSA website. If your windows were installed after April 2002, the contractor should have registered the window certification, making it easier to find out their age and related information.

Are new windows worth the investment?

Yes, investing in new windows is worth the cost. The energy savings, improved comfort, enhanced aesthetics, and increased property value make it a valuable home improvement project in the long run.

Which window frame material is the best?

The choice of window frame material depends on your preferences, budget, and climate. Common options include uPVC, aluminium, and timber. Each material has its advantages and considerations, so it’s best to consult with professional window fitters to determine the most suitable choice.

How Old Is Your Double Glazing Windows? How to Tell the Age of Double Glazing

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