Wooden Double Glazed Windows: Natural Style Combined With Energy Efficiency

What Are Wooden Double Glazed Windows?

As the name implies, double glazed timber windows are double glazed windows made out of timber frames. Typically window replacements with double glazing have two panes of glass instead of one. However, its energy efficiency doesn’t stem from the extra thickness, but from the gap between the panes of glass providing optimal thermal insulation. Timber frames, on the other hand, is the wood source, and as such, the terms ‘timber windows’ and ‘wooden windows’ are used interchangeably.

Investing in good timber windows will significantly reduce your energy bill and will enhance your home’s aesthetic value. However, due to the wide selection of available options, choosing the right window replacement requires one to be well informed. With the information provided by GreenMatch, you are well on your way to making a quality decision of the type of double glazed windows that will provide you with the best home comfort.

To compare prices of Double Glazed Windows in the UK, kindly fill the form at the top of this page and get up to four free quotes from our suppliers. Their offers will save you time and help facilitate your final decision.

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What Are the Best Wooden Windows for Double Glazing?

Wooden windows are a popular window replacement option in the United Kingdom with great environmentally friendly qualities. However, when deciding upon the best wooden windows, manufacturers are not just taking into consideration the aesthetic value but how wooden windows can contribute to overall energy efficiency in homes.

This has sparked continuous improvements in the window manufacturing industry resulting in hikes on the demand for double glazed windows, and in particular for timber frames. Due to thermal insulation, wooden windows have the benefit of keeping homes warm in the long winter months, while cool in the summer. Furthermore, wooden windows have become a favourite among homeowners for adding an aura of sophistication and elegance in the overall home comfort.

Double glazed wooden windows come in a variety of styles as your personal decoration style sets the signature of your home. It’s thus vitally important to consider how your timber windows will complement the mood and tone of your house thereby providing you optimal home comfort. The advantage that first-time buyers have is that wooden frames can be customised due to the large selection of wood available such as maple, mahogany or oak.

Moreover, one can experiment with different looks by carving and painting your wooden windows to match your style and thus giving you essential value for home comfort. The recent years have also seen vast improvements in glass technology and distinctions in wooden windows which has helped to bring out the beauty of timber windows.

Are Double Glazed Wooden Windows Expensive?

In comparison to other double glazing window replacement options such as a uPVC window, wooden frames are typically more expensive and have higher initial costs. This is because good quality timber is high in cost.

How much double glazed wooden windows cost will largely depend on the style and type of window you choose. However, some approximate numbers and prices can be of a great use, and therefore we created the tables below taking into consideration the most popular types of double glazed windows shapes and types.

Number of bedrooms	Number of White Wooden Casement Windows (600mm x 900mm)	Cost of White Wooden Casement Windows
2	4 windows	from £2000
3	9 windows	from £5000
4	15 windows	from £9000

Number of bedrooms	Number of White Wooden Sash Windows (600mm x 900mm)	Cost of White Wooden Sash Windows
2	4 windows	from £4000
3	9 windows	from £7000
4	15 windows	from £12000

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What Are the Advantages of Wooden Windows?

Wooden windows are an excellent choice for window replacements due to their given capacity to boost your home comfort and at the same time be environmentally friendly. Investing in double glazed wooden windows is therefore valuable for the following reasons:

Environmentally Friendly

Timber windows are made from trees making them a natural building material that is sustainable and environmentally friendly. Trees have been used in construction by societies around the world for thousands of years and are also known for giving lasting value to any window replacement.

The thicker the double glazed wooden windows are, the stronger and more durable the structure will be, which also helps to increase thermal insulation. As an environmentally friendly choice, timber frames emit less harmful gasses in the manufacturing process and rank high on energy efficiency.

Aesthetically Appealing

Wooden windows have a natural aesthetic quality that is visually pleasing. This element of beautification rises the level of home comfort and sets a relaxing ambience. Apart from the aesthetic value and environmentally friendly attributes, timber windows are known for their classical look. So, whilst timber windows will beautify any type of property, traditional looking houses, as well as houses made out of brickwork, tend to be best suited for double glazed wooden windows.

Energy Efficiency

Wood is considered to be one of the best sources of thermal insulation. It’s heating qualities is far better than that of aluminium or vinyl, and is higher in energy efficiency. The amount of thickness on the wooden frame contributes significantly to the heating and acoustic value making wooden frames an excellent window replacement choice. The amount of cold air penetration is vastly impeded enhancing home comfort, especially in winter.

Long Life Expectancy

In comparison to other types of double glazed windows, wooden windows last longer and are environmentally friendly due to timber being a renewable material. Timber windows are thus extremely durable and easy to repair. The cellulose and fibre contained in wooden windows allow them to remain pristine even under bad weather conditions. Double glazed timber windows are also strong enough to prevent warping or twisting for many years.

Why Use Wooden Windows in your Home?

Wood is a renewable material that is both environmentally friendly and increases energy efficiency. As such timber windows are embedded with thermal insulation properties, which naturally gives off warmth, and, henceforth, reduces the demand on heating and lighting costs.

Apart from thermal insulation, a good point to note is that wooden windows have a negative GWP (global warming potential) implying that over time they naturally decrease the amount of carbon dioxide released into the air. Thus double glazed wooden windows lower dependency on the power grid for heating or cooling thus raising energy efficiency.

Important to note is that investing in double glazed wooden windows has a double effect on energy efficiency and home comfort. Firstly, it reduces your energy consumption by enhancing heat during winter. Secondly, it reduces overheating in the summer thus retaining coolness.

Are Wooden Windows Better than uPVC?

Double glazed wooden windows are a great alternative to uPVC windows, giving homeowners a competitive and effective option for optimal energy efficiency. Whilst both uPVC and timber frames have ample benefits as window replacements, there are differences that one should consider in making your choice of double glazed windows.

Here are some advantages wooden windows have over uPVC:

Higher Thermal Insulation

Both uPVC and wooden windows will retain heat loss, however, the latter has the advantage of being a natural insulator. This offers higher thermal insulation and energy efficiency which in turn adds home comfort and reduces monthly bills.

Green Choice

Timber is a renewable building material and releases less CO2 in the manufacturing process than uPVC. It’s highly environmentally friendly as it can be recycled and is biodegradable. Thus in comparison to uPVC, wooden windows are more sustainable as a window replacement.

Longer Guarantee

Double glazed wooden windows have a longer warranty than uPVC windows. They have an average guarantee of 30 years, while uPVC windows usually have a 10-year guarantee. Also when it comes to damages, wooden windows are also considered to be much easier to repair than uPVC.

Best Option for Traditional Homes

Wooden windows are timeless and are a best-suited window replacement for period properties. For ideal home comfort in traditionally looking houses, double glazed wooden windows will help to retain its classical features and maintain an authentic and elegant look.

Disadvantages Wooden Windows Have Compared to uPVC

Higher Costs

As mentioned before, wooden windows are more expensive than uPVC windows. This is because good quality timber is generally very high in cost. Yet, considering the longer life expectancy, they are a worthwhile investment option for double glazed windows.

Higher Maintenance

Wooden windows arguably require more maintenance than uPVC double glazed windows due to paint work. Although, depending on the type of paint finishing used, repainting of timber frames can be done in regular intervals of between 2 and 8 years.

Find the Best Wooden Double Glazed Windows in the UK

Wooden windows are therefore an excellent choice for timeless looking, long lasting window replacements that are environmentally friendly and prioritises energy efficiency in the overall home comfort.

To compare prices of Double Glazed Windows in the UK, kindly fill in the form at the top of this page and get up to four free quotes from our suppliers.

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As Partnerships Manager, Sue-Angel looks after GreenMatch’s extensive portfolio of partnering suppliers and installers that operate in the renewable energy market. Her daily responsibilities include the acquisition, on-boarding, and development of new and existing partnerships. However, her journey with GreenMatch started as an SEO Communications Assistant, where she produced content on environmental awareness and sustainability. Sue-Angel holds a BA Dramatic Arts Honours Degree and a Masters in Business Administration.

Find the Best Double Glazed Windows

The Ultimate Guide for Double Glazed Windows

Is the noise outside driving you mad? Is your home still cold in the wintertime even though your heating bills are through the roof? Then double glazed windows are the solution for you!

The benefits of having double glazed windows are numerous and worth every pound.

Double glazing in your windows helps you insulate your home better, therefore they are an essential part of any building. Choosing the right windows can make a huge difference in how functional and comfortable that building will be.

Double glazed windows can have different frame styles, so you can adapt them to your modern home. The frame of your windows can either be wood, aluminium or if you’re after a more affordable solution, uPVC windows.

Starting Prices of Double Glazed Windows

Number of windows	Window style	Price of Windows
1	Casement windows	from £300
1	Tilt and turn windows	from £500
1	Sash windows	from £600

At GreenMatch, we assist you in deciding if double glazed windows are the right investment for you. If you would like to get a quote on new windows, just fill out the form at the top of this page and we’ll make sure to provide you with quotes from our trusted suppliers.

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What Is a Double Glazed Window?

Double glazed windows are frames fitted with two panes of glass that have a space between them, usually 12mm to 16mm. The gap between the two glass panes stays in place thanks to a spacer bar. Typically, this gap is filled with normal air, but it can also be filled with argon gas.

This method of double glazing is also called insulated glazing because of the ability to trap the air between the panes glass which leads to dramatic reductions of heat and noise transmissions.

Hence, the more layers of glass the window is built with, the higher the reduction is going to be. However, the glazing method is not limited to only two layers of glass, triple glazing is also available for even more optimal results. Thus, no matter how good of a heating system you rely on to warm your house, it is useless if most of the heat is lost through a single-pane window.

It is expected that double glazing will continue to rise in popularity followed by energy efficient incentives and other products available on the market. With the wide variety of choice nowadays, not only does double glazing improve your home, but it also reduces your carbon footprint at the same time. Find here more information about prices of double glazing products.

What Is the Cost of Double Glazed Windows?

There are several factors to take into account when it comes to the cost of double glazed windows. How many windows you need and the style that fits your home is what should be considered first. Additionally, the material of the frames and glass type will help determine the final price, since different materials and glass types cost different amounts.

Regarding the frame material, PVC is used the most for double glazing because of its efficiency and low price. Aluminium and wooden frames, on the other hand, are more costly and are not more functional than the uPVC substitute.

As for the style/type of the double glazed windows, the most popular are casement and sash. Casement windows are generally the cheapest option, contrary to the dual turn which is considered to be most expensive.

Cost of Casement Windows

Number of bedrooms	Number of white uPVC casement windows (600mm x 900mm)	Average cost
2	4 windows	from £1,000
3	9 windows	from £2,250
4	15 windows	from £3,750

A single casement white uPVC window (600mm x 900mm) usually costs around £250 in the UK. On the other hand, a single sash white uPVC window (600mm x 900mm) is estimated to cost approximately £500.

Since casement and uPVC sash windows are the most popular in the UK, we created the tables below to provide an approximate price estimation of these types of double glazed windows. The prices are offered is according to the type and number of double glazed windows.

Please keep in mind, that these numbers may not represent an actual offer, it is only an approximate estimation to give you an idea of the total cost.

Cost of Sash Windows

Number of bedrooms	Number of white uPVC sash windows (600mm x 900mm)	Average cost
2	4 windows	from £2,000
3	9 windows	from £4,500
4	15 windows	from £7,500

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Types and Longevity of Double Glazed Windows

Depending on your specific requirements, double glazing companies can supply all sorts of double glazed windows to meet your needs.

You can even choose your windows according to the type of glass, window frame material and shape, type of spacer bar, and what the space between the glasses will be filled in with.

Different Types of Glass

1. Low E-energy Saving Glass

The glass used in a double glazed window for thermal insulation is called Low-E, or low-emissivity glass. This type of glass is the best for cold regions where a lot of energy is used to heat the house. Hence, this type of glass is energy efficient and will help reduce your heating bills.

2. Acoustic Glass

Acoustic glass has been developed to lessen the levels of unwanted noise from the outside. It is built of two or more sheets of glass that are bonded together with one or more acoustic interlayers. These layers weaken the sound waves as they travel through the glass.

3. Self-Cleaning Glass

the technology of uPVC windows has developed so far, that nowadays you can purchase double glazed windows that can be cleaned by themselves. Self-cleaning glass is pre-coated with a transparent coating that works to break down the dirt and spread water evenly around the surface.

4. Safety Glass

In order to avoid injuries caused by broken glass, toughened and laminated forms of glass have been developed. If they break, they will not form dangerous shards and splinters in the same way that standard glass will.

5. Fire Glass

In order to get protected from fire or smoke, this type of glass is the most optimal solution. The toughening, laminating, and coating technologies used, makes this glass more resistant to impacts and provides a barrier that gas, flame, and smoke cannot pass.

6. Security Glass

This glass, offers, even more, protection than safety glass and can protect from vandalism, infraction or any type of aggression towards your home. The way it is manufactured is what creates this glass’ unique ability to act as a protector.

7. Decorative Glass

The glass used for double glazing can be manufactured in a variety of ways to offer different choices of patterns, colours, texture, and opacity. This type of glass can be combined with some of the previous types to improved functionality.

8. Solar Control Glass

The purpose of the solar control glass is to reflect and filter the sun’s rays, allowing natural light in the room, without causing discomfort from visual glares. This can be very beneficial for glass roofs or any building with large glazed areas.

Apart from being very functional on its own, most of the glass types can be combined together for a targeted purpose, hence to fulfil any individual needs.

Types of Frame Materials

Usually, double glazed window frames are made of timber, aluminium or PVC (plastic derivative). It is very important to choose the right frame, as this will affect the insulation properties of the window by up to 30 %.

PVC Frames

Also called uPVC, is the most widely used material when it comes to double glazed windows. The reason for this is that uPVC frames are usually the lowest cost option, but they still provide an excellent insulation and require very little maintenance. Not only that, but these frames come in many different colours and finishes. The only downside is that they can suffer from expansion under strong sunlight;

Timber Frames

Timber frames are made from different types of hardwood. They give the home a traditional look and are very durable. Usually, they are stained and varnished instead of painted. However, even though very attractive, they are more expensive than the uPVC double glazed window frames and require more maintenance;

Aluminium

Double glazed frames are least popular mainly because of their high price and poor insulation properties. Nevertheless, the advantages of this material are that they are strong, secure, low maintenance, and are expected to last for a very long time.

Spacer Bars

A spacer bar is the continuous hollow frame that is used to separate the two glass panes in the double glazed windows. The spacer bar is an important element of the double glazed windows unit and is typically made of aluminium or low-heat-conductive material (warm-edge spacer).

The aluminium spacer bars are currently the most often used because they are cheap, light, flexible, and very strong. The warm-edge spacers are however more effective when it comes to insulating against heat.

Besides the type of material that the double glazed windows are made of, double glazing companies have created a range of shapes and styles in order to fit any home. The most popular are:

• Bay and bow windows
• Round Window
• Tilt and Turn windows
• Fully reversible windows
• Cottage windows
• Casement and replacement casement windows
• Sash windows
• Secondary windows
• Dual turn windows

Advantages of Double Glazed Windows

• Lower energy bills
• Safe and warm house
• Noise reduction
• Furniture is safe
• Increase house value
• Reduce carbon footprint

1. Lower Energy Bills

Statistics show that nearly 50 to 70 percent of the heat from our homes is lost through single glazed windows. Since double glazed windows have the opposite effect, they will help you save on your energy bills.

2. Home Safety

Did you know that double glazed windows are much stronger than the single glazed windows? This helps make double glazed windows more secure, as the toughened glass is much harder for burglars to break.

3. Peaceful Home

Double glazed windows are able to reduce up to 60% of the outside noise from coming in. This is especially important for those who live close to busy urban areas.

4. Keeps Your Furnishing Safe

if some furniture is exposed to too much sunlight, the heat can begin to damage them. Double glazed windows, however, limit the amount of direct sunlight and heat that comes into your house, thus eliminating the risk of your furniture, paintings, carpet, and other objects around home becoming damaged.

5. Increase House Value

A house with double glazed windows installed has a higher value than those without. Therefore, double glazed windows are an efficient investment not only for the reasons mentioned above but also in a long-run, in case you decide to sell your home in the future.

6. Reduce Your Carbon Footprint

Double glazing can significantly reduce the emissions of greenhouse gas (GHG) from heating and cooling, and that will reduce your carbon footprint on the Earth.

Disadvantages of Double Glazed Windows

• Less appealing with older architecture house
• High initial cost
• Can not be repaired
• Heat is trapped

1. Trapped Heat

While this characteristic of the double glazed windows is what makes them so unique and functional in the cold seasons, it can have the opposite effect in summer. To fix this problem, you have the option to tint your windows, but that may add to the overall cost.

2. Can’t Be Repaired

Double glazed windows can not be fixed. If the seal of the window is not airtight, condensation can appear between the glass panes. As the windows are already sealed, they can not be pulled apart in order to fix the problem. The only solution is to repair the whole window.

3. Do Not Match Well with Older Homes

If you have a house that is built in older architectural style, these windows might not blend with the overall aesthetic of the house. However, there are some double glazing companies that produce double glazed windows specifically for these types of houses.

4. The Initial Cost

Since double glazed windows contain two glass panes, and thus more material is used to produce them, their cost increases by default. Though, this should not be of a high concern if you first consider the amount of savings you’ll have in the long run. Hence, double glazed windows are very likely to be a worthwhile investment for anyone.

How Do Double Glazed Windows Work?

Single glazed windows are designed to let the light in while blocking air and objects from entering the house. They are only a few millimetres thick, hence heat can easily flow through them, making it harder to heat or cool the house. Double glazed windows, on the other hand, let the light in while insulating your home from the outside elements

Components of Double Glazed Windows

There are 6 main components of a double glazed windows unit: the glass pans, the primary seal, the secondary seal, the cavity, and the spacer bar. Additionally, often there is a desiccant between the panes in order to absorb any moisture and to stop fog from forming between them. Furthermore, the windows can be either transparent, tinted, or layered with a reflective coating.

Double glazed windows insulate in several different ways. Firstly, having two glass panes makes it more difficult for the heat to escape.

Second, and most important, is the trapped air between the glasses because of the insulation power it produces.

Since heat is the rapid movement of molecules (the hotter a material is, the faster molecules move) when excited molecules move and collide with other molecules the heat is then spread out. This process is called conduction. As a result of this process, the air between the glass panes act as an insulator and makes it very difficult for the heat to escape outside.

The purpose of the coatings (tinted, reflective) is to prevent the sun from heating up the room, for instance, or to reduce the light coming in.

Double Glazing Window Repairs

Double glazed windows should last many years before needing any kind of repair or replacement. However, there are two tell-tale signs you might need your double glazed windows repaired.

1. If you notice your comfort levels decreasing. For example, if they are leaking, you will notice a draught coming through. This will result in higher energy bills because heat is lost quicker. Also, if there is increased noise coming in from the outside, it could be that they are leaking.
2. If you see physical damage on them. This could be a broken seal, if they are difficult to open, or if they are changing colour.

If you have noticed that your windows need repairing—or you may be looking for outright replacement windows—then you should either contact the installer or you can look for a new one. If you want new double glazing, you can use GreenMatch’s quote comparison service.

Your windows will inevitably need to be repaired or replaced, but it is important to take proper care of them to prolong their lifespan.

FAQs About Double Glazed Windows

Double glazed windows are highly energy-efficient and are an investment to lower your energy costs as they add a layer of insulation, which not only preserves energy but also has an added benefit of reducing external noise entering the house.

They are windows with two panes of glass that have a small space between them, typically 12-16mm. The space in this gap can either consist of air or argon gas. Essentially, this space traps air between the glass panes to prevent any air from leaking out, which means you can trap more heat in your home an have a better-insulated house.

Double glazed windows are an excellent way to insulate your home and reduce your utility costs. The double-paned glass stops air from leaking out, which helps improve your home’s energy efficiency, meaning you won’t need to spend as much money heating it up.

In addition, the insulating effect will keep out noise from the outside. This is particularly advantageous if you live in a noisy area or close to main roads.

There are many different types of glass and frames for double glazed windows that come with multiple benefits suited specifically to your home.

When it comes to frame types, are a popular, affordable choice because of their energy-efficiency, weather resistance, and sturdiness. Other options include wooden or aluminium windows.

Double glazed windows can start from as low as £300 for one window and go up to £1,500 in the UK. Double glazed windows prices vary based on the type and quality of double glazing.

The UK government has announced that double glazing is now an eligible secondary measure of home improvements. Therefore, homeowners are eligible to apply for the grant when upgrading to double glazing. You can read further details about the grant here.