What Double Glazed Windows Styles Can I Choose From?

Double glazed windows come in a range of materials and styles. If you want basic double glazed windows, you have casement windows and French casement windows. Tilt and turn windows and sliding sash windows have great features and help maximise restricted space. Bay and Bow double glazed windows let in greater amount of sunlight than any other style. Roof windows are useful if you want additional illumination in an otherwise dark room.

double glazed windows are available in many different styles

These double glazed windows cover a full spectrum of features. As a result, you can always find the right style for your needs. However, this is only possible if you know what each style is and what it offers. This is why we’ve put together a simple guide to double glazed windows styles. You can learn more about each style and what it offers.

What is a Casement Window?

casement window is one of the most popular double glazed windowsA casement window is a basic window with hinges on one side. The hinges are attached to the frame. To open the window, you simply swing it out. The traditional form has hinges on one side of the frame, but it’s also possible to have them on the top or bottom. In this format, the window swings open from the  bottom or top instead of the side.

These are extremely affordable double glazed windows due to their non-fussy design. They are also one of the oldest styles. In fact, before the sash window gained popularity, this was the most used window style in the UK. This uncomplicated window used to be fitted on to a wooden or stone frame. Today, you can get this elegant double glazed window style in uPVC, aluminium, or timber.

What is a French Casement Window?

french casement double glazed windowsTraditionally, casement windows only had one sash. This means they had a single ‘door’. This was attached to one side with hinges. French casement windows, on the other hand, have two ‘doors’ attached on either sides of the frame. As a result, you can open one or both of them. When closed, their swinging ends meet at the centre.

Traditionally, there used to be a vertical pillar or mullion in the centre. The two sashes would sit flush with it on either side when shut. However, modern homes need a fire escape and the wide French casement double glazed windows are ideal for it. Also, the pillar in the middle of the wide opening only obstructs the otherwise unimpeded view.

For this reason, the flying mullion replaced the static pillar. The central pillar is now fixed on to the slave sash.

The advantage of this is that the master sash opens independently. If you want only one sash open, you can do so. However, when you open both sashes, the flying mullion swings out with the slave sash’s opening edge. As a result, you can an unobstructed aperture. This wide opening is great for ventilation as well as a point of escape in case of fire.

What Are the Benefits of a Casement Window?

Of all the double glazed windows styles, casement windows are the cheapest. If you are on a limited budget, these might be the windows for you. French casement windows also give you a wide aperture that doubles as a fire exit. As a result, you can fulfil an important requirement of the building regulations if you install one on each floor.

Additionally, these classic windows suit any architectural style. They are versatile and high performing. Moreover, because the style is so simple, it’s appeal is timeless. In fact, you also get smooth performance for years because of its extremely basic mechanism.

What is a Tilt and Turn Window?

Tilt and Turn Double Glazed Windows Style OpeningAs the name suggests, tilt and turn windows have two ways in which they open. You can tilt these double glazed windows inwards to open them vertically from the top. Alternatively, you can also open them horizontally by swinging them inwards. As a result, you can control both the direction and extent of the opening.

The dual opening mechanism activates when the windows are completely shut. Once closed, the hinging mechanism on the side locks in. As a result, you can pull them open like casement windows. When you want the top opening, simply shut them again. Then, swing them in using the handle on the top edge.

When you tilt them open, you get a restricted aperture. This gives you controlled ventilation. On blustery days, you can open these double glazed windows up a crack. This way, you let in fresh air without blowing everything away. Similarly, on hot days, you can tilt them open further to let in more air.

It is also more secure since the opening isn’t wide enough for an intruder to squeeze in. What’s more, you can crack them open for ventilation. However, from the outside, your windows appear to be shut. You can tilt them all the way in so they lie flat. As a result, you can clean the outer pane without any risks.

When Should I Choose Tilt and Turn Windows?

The tilt and turn double glazed windows are ideal for properties on higher floors. They are even more useful if you have little children or pets. Since the windows open from the top, you can get fresh air. However, your little ones won’t be able to access the opening.

Moreover, since you can lay them flat to access the outer pane, you will find it easier to clean your windows. Simply open them all the way. After that, you can sit in the comfort of your home as you wipe them clean. No more hanging out of the window, risking a fall!

Additionally, you should consider them if your window apertures don’t have much space outside. Since they swing open inside, you can get ventilation even from windows that are in tight spaces.

What are Sliding Sash Windows?

sliding sash double glazed windows on the first floorEven if you don’t know what sliding sash windows are, we are confident that you must have seen them. You can see them on almost every heritage property. They have a unique opening mechanism. Unlike other double glazed windows, this style slides up vertically on rollers to open. It does not have hinges or tilting mechanisms.

Having said that, it’s important to note that modern sliding sash windows do have a tilting option. However, this is for easier cleaning rather than a window opening feature.

Sliding sash windows have two parts – A fixed sash on top and a sliding sash below which slides up behind it when open. A traditional sash window would have a sash horn. This is a little fixture that supports the window when it’s open. Almost all traditional sliding sash windows have Georgian bars. Georgian bars are the crossbars you see on windows. The glass pane is broken up into smaller segments. These are set inside smaller individual frames.

What are the Features of Sliding Sash Windows?

Sliding sash double glazed windows are a requirement for most heritage properties. This is because these properties cannot have fittings that change their external appearance. Even if you don’t own a heritage home, these windows add an old-world charm to any architectural style. Even modern homes can use these double glazed windows for a quirky touch.

Sliding sash windows provide a large opening for more sunlight. Once open, they give ample ventilation.Sliding sash windows also optimise your interior space. Since they don’t need room to swing open, you get more usable space around them.

What are Bay and Bow Windows?

White uPVC Bay Double Glazed WindowsBay and bow styles are large double glazed windows. These are a design feature in themselves and often become the focus of the room. These double glazed windows are made up of multiple facets around a central panel. There can be anything from 3 to 7 panels in one of these windows. The panels are arranged at a fixed angle from each other. As a result, the windows are curved, and projecting out from the wall.

Due to this projection, these double glazed windows give enhanced natural illumination. They also give a sense of being out in the garden without actually going out. This makes them ideal for garden facing walls where you want to show off your horticultural skills.

What is the Difference Between Bay and Bow Windows?

Bow double glazed windows sit on a shelfWhile bay and bow windows look similar, there is a technical difference between them. Bay windows are set upon walls that are shaped specifically for them. This means they have as many facets as the window itself. Bow windows, on the other hand, can be fixed on straight walls.

This is because these double glazed windows are set upon a ‘shelf’ that is shaped to hold the window. Also, they have a gentler angle making them appear ‘bow-shaped’.

As a result, bay windows can only be fixed on properties that were designed for them. Meanwhile, bow windows can be fixed in any large aperture. However, they both offer the same set of benefits.

Why are Bay and Bow Windows the Best Choice for Me?

If you have a beautiful garden and want to enjoy it regardless of weather, you will love bay and bow windows. Even if it is pouring outside, these windows make you feel like you are outside. The large double glazed windows make any room appear brighter, and thus bigger. As a result, they can often become the architectural focal point for the room.

These double glazed windows are perfect if you like grandeur. You can easily add Victorian opulence to your home with these windows. Moreover, they can serve as a cosy window seat or a naturally lit nook where you curl up with a book.

What are Roof Windows?

roof windows - a style of double glazed windows that covers skylights and roof lanterns

Roof windows, as the name suggests, are double glazed windows installed on the roof. These are usually used on tiled or solid roofs to let in more natural light. Roof windows can be flat or raised. Raised window roofs, or roof lanterns are extremely popular. They serve both as a design feature, drawing the eye upwards, and an illumination point. These windows are especially useful for tiled roof conservatories for more sunlight.

Flat double glazed roofs may not be as stylish as roof lanterns. However, they work beautifully if you want the sunlight pouring in a room that can’t have regular double glazed windows.

Should I Get Roof Windows For My Home?

If you have a room that cannot have windows on the walls, roof windows should be ideal for you. Even if the room has standard double glazed windows, you might want additional illumination. This might be the case if the room has a wall or another property blocking the light. These double glazed windows also work well in lofts or attics.

Additionally, you can also take advantage of the additional ventilation these double glazed windows might offer. You can fit them with a manual or an automated opening system. This way, you can open them whenever you want for fresh air circulation.

However, even if you don’t need extra light or air, these double glazed windows on your ceiling can be a good way to look at the stars at night. Install them in your bedroom and you can look up at the night sky while you’re in bed.

Where Can I Find Affordable Double Glazed Windows?

If you need double glazed windows for your home, you can get them from accredited local companies. If you wish to compare prices, simply use our online quoting engine. Simply tell it what double glazed windows you require and where you live. It will generate a personalised quote along with a list of reliable double glazing companies near you.

Alternatively, you can contact us online. Just fill up the contact form and let us know what you need. Someone from our expert team will get back with answers as well as local installers in your area!

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

What is Double Glazing?

Double glazing is where windows have two layers of glass with air tight gap between them to reduce loss of heat as well as provide effective noise insulation.

What Happens if I Have a Problem with my Windows or Doors?

All of the double glazing installers in our network offer product guarantees. Provided you are still covered by your manufacturer's guarantee, all you need to do is contact the installer in question and they will either repair or replace your windows and doors.

How Much Do Windows Cost?

Window prices will depend on your specifications such as size, style, glass type and security locks. At Double Glazing on The Web you can get an instant window cost online using our online quoting engine. Simply choose your window style and enter your window measurements to receive a unique window price.

Do UPVC Windows Discolour?

Your UPVC window will never rot, rust, peel or flake due to its long lasting material. An occasional wipe clean is all that is required.

Do UPVC Windows Look Cheap?

UPVC windows do not look cheap. They can be designed to offer slim sightlines and come in a wide variety of colours and finishes, not just the standard white. Authentic woodgrain finishes are available to achieve more of classic look.

What Does UPVC Stand For?

UPVC is an abbreviation for unplasticised polyvinyl chloride which is used in window frames.

Do UPVC Windows Need Trickle Vents?

Trickle vents are not a requirement, however they do offer additional ventilation without the need for opening your windows so can be a valued add on.

What Colour Options are Available?

There is a wide range of colour options available including both standard and bespoke colours and finishes. Aluminium windows and doors even come available in a RAL colour chart which gives you an infinite choice.

Why Should I Choose One Of Your Installers?

All installers that operate in affiliation with Double Glazing on the Web are accredited by a recognised industry body such as FENSA or CERTASS. Double Glazing on the Web vet all of our double glazing installers to make sure you receive a professional and efficient quality service.

How Long Will It Take To Install My Casement Window?

Because every job is different, it is best your talk to your double glazing installer who will be able to give you an exact timescale.

How Can I Get Casement Window Prices?

You can get instant casement window prices by using our free online quoting engine or you can contact us on: 0800 015 5679 to speak to one of our advisors.

Are There Other UPVC Casement Window Styles?

Other UPVC casement window styles include the French casement window which is a more traditional take on the standard casement style.

Will I Have A Choice of Casement Window Locks?

A high security lock will be fitted as standard with your new casement window but your double glazing installer will also offer a choice of security upgrades.

What Are Flush Casement Windows?

Flush casement windows are where the unit sits flush to the frame, creating a super sleek look.

Are There Different UPVC Casement Window Sizes?

UPVC casement windows come in a wide range of sizes to suit your property. You can specify your casement window size in our window cost calculator to get a unique window price!

Can I Choose My Casement Window Handles?

Your double glazing installer will offer you a choice casement window handles and casement window hardware options so you can achieve the perfect look.

What is a Casement Window?

A casement window is attached to its frame by one or more hinges. A casement window is hinged at the side allowing them to open extremely wide. These windows can double up as emergency exits and are perfect for hard to reach places within the home, with many home owners installing these windows behind their kitchen sinks.

Where Can I Get A Tilt and Turn Windows Price?

You can get a tilt and turn windows price using our window cost calculator which will give you a free and unique quote within a matter of minutes.

How Does The Tilt and Turn Window Mechanism Work?

The tilt and turn window can be ‘tilted’ inwards due to its unique turning action which allows the window to be easily accessed from both inside and out. All it takes is a swift turn of the handle.

How Much Do French casement windows cost?

The cost of French casement windows will vary depending on installer but you can get an average casement windows cost using our free online quoting engine

How do UPVC Sash Windows Work?

UPVC vertical sliding sash windows are built to either slide vertically downwards or upwards. This opening function makes the UPVC sash window much easier to use compared to traditional wooden windows where the only choice is double hung and single hand.

Are UPVC Sash Windows Easy To Use?

UPVC sash windows are very easy to use. Their spiral balance mechanism allows for smooth operation so you can open and close your windows with ease. UPVC sash windows are also incredibly low maintenance and require very little cleaning.

Why Should I Choose a UPVC Sash Window?

UPVC sash windows are incredibly attractive and make a stunning addition to any property and are relatively low maintenance thank to their UPVC design. You can enjoy a traditional aesthetic for many years to come thanks to their long standing properties.

Replacement Sash Windows In A Conservation Area

If your home is a listed property or within a conservation area then you will need to seek planning permission.

How Much Do Double Glazed Sash Windows Cost?

UPVC sash window prices will vary according to glazing style, your choice of locks and even your chosen colours and finishes. You can get an average sash windows cost using our window cost calculator.

How much is double glazing per window?

Double glazing prices per window can vary from around £150 to £600 depending on the specification. The window style, type of glass, frame colour and handles are all contributing factors. To find out the true double glazing price per window it is a good idea to get a number of quotes to compare.

What is the average cost to double glaze a house?

The average cost to double glaze a house will depend on the size of your house and the number of windows. To double glaze a flat or apartment it will probably cost around £2,000. The average cost to double glaze a house is usually between £4,500 to £7,500. If you collect a number of double glazing quotes you will be able to compare companies and prices.

Is double glazing expensive?

Double glazing can be an affordable addition for many homeowners. The price you pay can depend on the quality of the windows and the energy ratings. Other factors are the style of the windows, the colour of the frames and the type of glass. Why not get an online double glazing quote to get an idea of the price.

How much does it cost to install a window?

The prices given in our pricing tables, our online quotes and our costing calculators reflect the price of the window itself as well as the cost of installation. For example, a 500mm x 500mm casement window will cost between £150 and £175 including the cost of installation.

How much does it cost to double glaze a 3 bed house?

On average a double glazed window will cost between £350 and £400, with a uPVC door typically costing £600. This means that double glazing a 3 bedroom semi can cost between £3500 and £5000.

Bay or Bow Window?

Simply put, it really depends! Bay windows offer often much welcome and useful extra storage space to the frontage of homes. On the other hand, bow windows provide a curved shape alternative in terms of look compared to bay windows. They are both beautiful options and can add much character and charm to the right property.

Can Bay Windows Look Modern?

Bay windows can easily be either modern or traditional depending on the combination of glass and / or coloured uPVC profiles now available. Subsequently, its easy for these windows to seamlessly blend in with contemporary or old properties.

How Does Double Glazing Work?

Heat loss is greatly reduced using double glazing. Double glazing features two panes of glass with a layer of trapped air or gas in-between. Air is a poor conductor of heat so much less heat is lost through the window itself.

Condensation on Double Glazed Windows

When moisture in the air suddenly cools and condenses on a cold window, you get condensation. Well insulated (Low E) double glazing will help prevent condensation from forming on the interior of your window. Replacement glass units or replacement double glazed windows are recommended for windows with condensation.

What Are Double Glazed Windows?

Double glazed windows feature two panes of glass for better heat insulation and noise reduction. Window frames come in a variety of materials such as UPVC, wood and aluminium. Double glazed windows also come in a choice of styles to suit your home, you can choose from a wide range of window designs which include the casement window, tilt and turn window, sash window, sash horn window and bay window.

Are Double Glazed Windows Soundproof?

Double glazed windows are built to provide improved sound insulation. Double glazed windows are recommended for homes situated on busy roads or built up areas where external noise can be a problem.

Are Double Glazed Windows Good For The Environment?

Once of the best ways of making your home more energy efficient is insulation. Double glazed windows act as another layer of insulation, helping to prevent the loss of valuable heat.

If I Use Double Glazing on the Web Who Will Fit My Double Glazing?

Double Glazing on the Web have a fully accredited network of local installers. Once you have created your free online quote we will put you in touch with up to three reputable local suppliers. Each of these suppliers will offer you a free no obligation quote and who you choose is completely up to you.

What Makes Flush Sash Windows Different?

Flush sash casement windows are specifically designed to imitate the appearance of traditional wooden timber windows by appearing to have the same sashes that finish 'flush' with the outside face of the window.

Is triple glazing better than double glazing?

In most instances double glazing will be an adequate upgrade to single glazed windows. Double glazing offers energy efficiency, noise reduction and security. If you live near a busy road or under a flight path you may want to consider triple glazing for the extra noise reduction that it can offer.

Is double glazing easy to break?

Double glazing is a strong option for windows compared to single glazing. The frames are durable and there are high security locking options. As double glazing is made from glass it is possible to break however you will have to exert quite a bit of force to do this. This is practically impossible to do without making a noise.

What Does Double Glazing Do?

Double glazing makes your house more energy efficient, keeping heating in and keeping the cold out during winter months. During summer months, it helps keep the hot air out, keeping your house cooler. It also works to insulate sounds from busy areas and roads, leaving your house more peaceful and quieter.

Does Double Glazing Block Sound?

Double Glazing not only provides heat insulation but it also provides sound insulation too. Double glazing is perfect for houses in busy areas and streets.

How Do I Know If My Double Glazing Needs Repaired?

There are four tell-tale signs that your double glazed windows need repair or replaced: There are chips and cracks in the panes of glass; there is condensation (misted windows) between the two panes of glass; the window allows cold air through; water begins to seep through the frame. If your double glazing does any of these things, you may need to get your double glazing repaired or replaced.

How Long Does It Take To Install uPVC Windows?

On installation day, a uPVC window will take anywhere from 3 hours to a full day depending on the shape, size and style of the window. When you place your order, it will take anywhere between 4-6 weeks to build and manufacture the parts for your bespoke window.

Is uPVC Flammable?

No, uPVC isn’t flammable and is actually a fire retardant.

Can My Windows Be Installed In Cold And Rainy Weather?

Yes, windows can be installed in any weather, however, it is important to remember the safety of the installers who come to put in your window and that the rain could damage things your property due to the fact there will be a hole in the wall for quite some time during installation.

What Can Cause Double Glazing To Crack?

Double glazing can crack for what appears to be no particular reason at all. A sealed window unit faces constant pressure either side of the glass, however, most of the time double glazing is strong enough to deal with this. Winter can be one of the worst time for cracked glass as the difference of temperature on either side of the glass stressing it to the point it can crack.

Should I Double Glaze My Windows?

Double glazing works to make your house more energy efficient saving you money on your heating bills. Double glazing also provides sound insulation which is perfect if your house is situated near busy roads and noisy areas. Double glazed windows are also tougher and harder to break than single glazing windows making your house more safe and secure.

How Long Does It Take To Install A Window?

From the moment you purchase your window it will take anywhere between 4-6 weeks to build and manufacture your window for you. The actual installation itself could take anywhere between 3 hours to a full day.

How Do I Know If My Double Glazing Needs Replaced?

Double glazing will need replaced after a while due to the nature of the design – the gas that separates the two window panes slowly leaks out over time meaning the energy efficiency of your window is compromised. If your double glazing allows cold spots; water to seep through the frame; has cracks or chips in the window or has a build-up of condensation between the two panes of glass (misted windows), you should probably look into getting your double glazing replaced or repaired.

How Long Does It Take To Install A New uPVC Window?

Once you place your order for a new window, it takes 4-6 weeks to build and manufacture the product. On the day of installation it could take anywhere from 3 hours to a whole day, depending on size, shape and style of window.

How Long Does Double Glazing Last?

It is important to note that the argon gas that separates the panes of gas, giving double glazing its energy efficiency will eventually leak out overtime. Double glazing has an average life span of about 20 years, however, this can vary depending on materials used and the installation.

Is Double Glazing Worth It?

Double glazing helps make your home more energy efficient as it prevents the loss of heat. During the summer, it helps to keep the heat out of your home. It provides your home with sound insulation which is perfect for houses that are in busy areas and streets. Double glazing also makes your home safer and more secure.

Is Double Glazing Easy to Break?

No, double glazing is not easy to break which means your home will be more secure. When attempting to smash double glazing often what happens is that the first pane of glass and the second will remain intact. This is due to the argon gas working as a shock absorber. This will mean the smash is very loud but unsuccessful on the first attempt.

Why Is uPVC Used For Window Frames?

UPVC is used for window frames because it strong, durable, energy efficient and long lasting.

Should I replace my old sash windows?

Sash windows are a key feature for many traditional period buildings. Sash windows were traditionally built using timber, which is fairly high maintenance and has a tendency toward rotting and warping. Over time, these windows can become draughty and insecure. uPVC sash windows are a great way to experience the benefits of modern double glazing, without sacrificing the aesthetic of your home. uPVC sash windows will not rot or warp and require little maintenance. They are also thermally efficient, which means that your home will not require as much heating.

How much does sash window restoration cost?

The cost of sash window restoration will depend on the survey result. Standard draught proofed sash windows (without sill replacement) usually starts at about £500 per window. The time taken will also depend on the survey result.

Can I install double glazing into my original sash windows?

This will depend upon what type of window you have. Replacing existing moving sashes with new, double glazed replicas might to be possible.

How much does it cost to replace a sash window?

The cost of replacing a sash window will depend on many factors including: style, size, material and glazing. A wooden sash window will cost significantly more than a uPVC sash window. A wooden sash window can cost up to £1000. Wooden windows are more expensive to manufacture so expect to pay that bit more. uPVC sash windows can be designed to mimic wood and are much cheaper in price. The starting price for a standard uPVC sash window is on average £525.

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