Upgrading your windows is one of the most effective ways to create a warmer, quieter, and more energy-efficient home. Jewel Windows crafts high performance glazing that transforms how your home feels throughout the year.
Are you are in the middle of a common dilemma among homeowners across Surrey and surrounding areas in that you are wondering whether to choose double or triple glazing? If so, this guide will break down everything you need to know, helping you make the right decision for your home and lifestyle.
In the past, double glazing has been the standard but triple glazing is now becoming a popular UK choice, especially among those seeking superior energy efficiency. Triple glazing also provides higher thermal performance, better noise reduction, and a more comfortable indoor temperature, making it best for high performance homes, new builds, and noisy locations.
What Is the Difference Between Double and Triple Glazing?
Double glazing uses two panes of glass with an insulating gas filled cavity. Triple glazing uses three panes of glass separated by two cavities, increasing insulation and noise reduction.
Both options reduce heat loss, improve comfort, and enhance security, but the extra pane in triple glazing delivers higher performance.
An Easy Comparison
Below is an easy comparison table guiding you in choosing the right glazing for your Surrey home.
| Feature | 💎 Double Glazing | 💠 Triple Glazing |
|---|---|---|
| Best For | Standard renovations & older homes | New builds & high-performance homes |
| Core Strength | Balance of cost & comfort | Maximum insulation & noise reduction |
| Heat Retention | Strong insulation for most UK climates | Superior retention; eliminates cold spots |
| Noise Control | Significant reduction vs single glazing | Exceptional; ideal for roads & airports |
| Budget | Excellent value & lower install cost | Premium investment for long-term efficiency |
Which Should You Choose?
Choose double glazing if:
-You want excellent value.
-Your home is moderately quiet.
-You want more natural solar warmth.
-You are upgrading from older windows.
Choose triple glazing if:
-You want maximum insulation and comfort.
-You live near a main road, airport, or railway.
-You are building or renovating a high performance home.
-You prefer the highest specification available.
U-Value Breakdown for Double and Triple Glazing
U-Values play a big part in glazing and it is important to consider these when choosing between double or triple glazing for your home in Surrey.
Below is a u-value breakdown to help you make a smarter choice.
| Glazing Type | Typical U-Value Range | Performance Notes |
|---|---|---|
| Double Glazing | 1.2 – 1.6 W/m²K | Modern standard performance; efficient for most UK homes. |
| Double Glazing (Wider Range) | 1.2 – 3.7 W/m²K | Includes outdated or low-spec systems found in older properties. |
| Triple Glazing | 0.6 – 0.8 W/m²K | Typical high-performance triple units for maximum efficiency. |
| Premium Triple Glazing | ~0.74 W/m²K | Based on advanced manufacturer data and specialist coatings. |
| Triple Glazing (General) | < 0.8 W/m²K | Broad industry guidance confirming sub-1.0 performance levels. |
What This Means in Practise
Double Glazing
A modern double glazed window at 1.2–1.4 W/m²K comfortably meets UK building regulations and suits most homes.
Triple Glazing
Triple glazing, typically 0.6–0.8 W/m²K, offers roughly 50 percent better insulation, providing warmer interiors and improved acoustic performance.
Local Considerations for Surrey and Berkshire Homeowners
Homes across Surrey, Berkshire, Hampshire, and the South East often benefit from double glazing due to the region’s milder climate. However, triple glazing is increasingly popular in:
-New builds aiming for high EPC ratings.
-Properties near Heathrow flight paths.
-Homes close to major roads such as the M3, A3, A30, and M25.
Jewel Windows serves homes across these areas with bespoke, handcrafted glazing options tailored to the local environment.
Jewel Windows’ Triple Glazing Solution
Not only does our triple glazing have many enhanced benefits as detailed in this guide, but many of our window types can support our triple glazing. We only use robust materials, meaning glazing beads can support glass of up to 44mm in thickness.
All our colour finishes of window profile materials can also be customised. Everything from Anthracite Grey to Chartwell Green and Mahogany woodgrain, our triple glazed products can be tailored to suit your unique home.
Not only that, but Jewel Windows are also approved by FENSA as a professional installer and all our products come with a 10 year guarantee.
The Investment Question: Triple Glazing Costs Explained
There is no doubt that triple glazing is more expensive than double glazing. Usually 10-20% higher, triple glazing prices are also based on other factors including:
–Window Size and Style – Larger windows with more complex styles cost more.
–Frame Material – uPVC is generally more cost-effective and more popular with aluminium and timber materials being more expensive.
–Installation Complexity – Triple glazing is heavier than double glazing which requires a more robust frame and a more involved installation process.
Even though there are a few factors which influence the price of your triple glazing, there is a huge potential in terms of long-term value. By choosing our triple glazing you can save money on your energy bills, increase your property value and enhance the comfort of your own home.
Choose Jewel Windows Today
Both double and triple glazing are excellent choices. The best option depends on your goals, your home, and your environment. At Jewel Windows, we help you find the perfect fit for your lifestyle and budget.
If you live by a busy road, airport or in an urban area, our triple glazing is perfect for you. Alternatively, if you are looking to reduce your energy bills and create a comfortable temperature in your home all year round, our triple glazing solution is ideal for you.
Part of the larger Jewel Home Group, we are the leading experts in home renovations in the Surrey area. With decades of experience, we offer a comprehensive service so you never have to go elsewhere.
We are highly recommended and closely vetted so you will have complete peace of mind throughout your hassle free and enjoyable triple glazing process.
To get started on your triple glazing journey, get your free online bespoke quote today!
Alternatively, if you would like more information, contact us or call us directly on 01252 444365 and we will be happy to help you.
Jewel Windows, putting the sparkle back into your home.
