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Here’s What You Need to Know!
So you’re wondering if you should replace your 20 year old double glazing? You’re not alone.
Replacing old double glazing can be cost effective in the long run with energy savings and reduced maintenance costs.
Let’s get into what you really need to know about upgrading those old windows.
Double Glazing Deterioration
Double glazing like any other home feature can deteriorate over time and affect its performance.
One of the main issues is the breakdown of the sealant between the two panes of glass. When this happens moisture can get into the space between the panes and cause fogging or condensation.
This reduces the clarity of your windows and their energy efficiency.
Cheaper double glazing is made with lower quality materials and is more prone to deterioration. Harsh weather conditions can also accelerate the wear and tear of your double glazed units.
Double Glazing Replacement Signs
Your windows are telling you it’s time to change if:
- You see condensation between the glass panes (this means the seal has failed)
- There’s a draft coming through
- Your bills have been going up year after year
- The frames are showing visible damage or decay
- You notice poor energy efficiency (this could mean your double glazing needs replacing for better performance and comfort
The Cost
Let’s talk money – because that’s often the biggest concern.
An average 3 bedroom house with six windows can cost upwards of £5,000 to replace all the windows depending on the style, material and accessories. There’s more to a window than just glass!
But here’s the thing – modern double glazing can save you £140–£235 per year for A-rated or A++-rated windows, depending on energy prices and the home’s insulation quality.
Energy Efficiency: The Key
Replace double glazing to benefit from the advancements in double glazing technology over the past 20 years.
Today’s windows have a U-value of 1.2 W/m²K compared to 2.8 W/m²K of older units.
So they’re more than twice as good at keeping heat in.
Sound Proofing Benefits
Live near a busy road?
New double glazing can reduce noise by up to 32 decibels [Source: British Fenestration Rating Council].
That’s like turning a busy street into a library.
Property Value
Estate agents say new windows can add 5-10% to your home’s value [Source: Rightmove].
That’s £12,500-£25,000 on a £250,000 house.
Modern Security
New double glazing has:
- Multi-point locking systems
- Toughened safety glass
- Stronger frames
- Built-in security hinges
Environmental Impact
Replacing old windows isn’t just about comfort.
Modern double glazing can reduce your carbon footprint by 680kg of CO2 per year [Source: Glass & Glazing Federation].
Choosing the Right Replacement Windows
Choosing the right replacement windows is key to getting the most energy efficiency and comfort for your home.
Start by thinking about the style and design that will suit your home. The material of the windows is also important; uPVC windows are known for their durability and low maintenance while traditional timber windows might be more suitable for homes in conservation areas or aluminium.
Energy efficiency should be number one. Look for windows with high insulation to reduce your bills. Modern double glazing often has Low-E glass coatings and argon gas filling to improve thermal performance.
Security and safety features are also key. Make sure your new windows have strong locking systems and toughened safety glass. Talking to professionals like Sheerwater Glass, will help to find what’s right for you.
With the right replacement windows you can have energy efficiency, lower bills and a more comfortable home.
Finding the Right Installer for Your Double Glazing Replacement
Choosing the right installer for your double glazing replacement is key to a smooth and stress free installation. Start by looking for companies registered with FENSA. This means the company has the necessary knowledge to install your new double glazing.
Check the company’s reputation by reading online reviews and testimonials from previous customers. A company with good feedback and a long history is more likely to provide a good service.
Also look for a company that offers a full warranty and good after-sales support. So if anything goes wrong after installation it will be sorted quickly.
By choosing the right installer you can ensure your new double glazing is installed to the highest standards and you’ll get energy efficiency, security and long lasting performance.
The Installation
Disruption?
A typical installation:
- 1-2 days for an average house
- Minimal disruption
- Old windows removed
- Professional clean up
Double Glazing FAQs
“Can’t I Just Repair My Old Windows?”
Sometimes repairs are possible but they’re often a quick fix.
If your windows are 20+ years old replacement is usually the better long term option.
“What’s Changed in Window Technology?”
Modern windows now have:
- Low-E glass coatings
- Argon gas filling
- Warm edge spacer bars
- Better thermal breaks in frames
When to Replace?
Spring or summer is best but installers work all year round.
Just not on extremely wet or windy days, well, occasionally when safely to do so!
In Summary
If your double glazing is 20 years old it’s worth replacing.
Think of it as an investment not an expense.
The energy savings, comfort and added value to your property usually makes it a good decision.
Want a free no obligation quotation? Call us now and find the perfect fit for your home.
By Jessica Stevens
