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Bow Windows in the UK: Prices, Types, Pros & Cons
- Bow windows cost between £1,430 and £5,485, depending on the size, material, and number of glass panels used.
- There are three main styles of bow window: curved bow, segmented bow, and circle bow. Each has a slightly different construction and appearance, but offers the same visual benefits.
- Bow windows are most commonly made from uPVC, aluminium or timber.
Bow windows add a unique and stylish element to your home. With a large, gentle curvature, this window style can offer panoramic views and let in plenty of natural light.
In this article, we’ll help you decide if bow windows are right for you. We’ll compare material choices, pros and cons, and those all-important costs.
However, if you’re ready to install new bow windows, we can help with that, too. The best way to find a good deal is to compare several quotes, but tracking down trustworthy installers can be stressful on your own.
Don’t waste hours of your free time scrolling the web, reading lengthy reviews or waiting weeks to hear back from people. Instead, fill in our simple 30-second form and you’ll receive up to 4 free quotes from our network of qualified window installers.
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What are bow windows?
Bow windows are a style of window which protrudes outwards in a curved design. Using multiple glass panels, arranged at varying angles, a gentle arc can be created. Usually, four or more panels are needed to achieve this smooth, rounded appearance (the more panels, the rounder and wider the bow effect).
The use of multiple panels not only form an elegant appearance, they also offer a wider range of view and more natural light. As these windows extend outwards from an exterior wall, they can create a better sense of space - often, a large internal windowsill can be used as seating (or cosy nook) because of this.
Bow windows are a popular choice as they not only enhance the interior, but also add a unique outer aesthetic to a property. As they are available in a range of materials and customisable options, they look great on both traditional, period homes and modern exteriors.
Replacement bow window costs
The cost to replace bow windows can range from £1,430 to £5,485. This sum will largely depend on the materials used and the number of glass panels you choose. To help you identify these cost differences, we’ve outlined estimates in the table below.
| No. of panels* | uPVC | Aluminium | Timber |
|---|---|---|---|
| 4 | £1,430 - £2,160 | £1,860 - £2,810 | £2,145 - £3,240 |
| 5 | £1,820 - £2,825 | £2,365 - £3,675 | £2,730 - £4,240 |
| 6 | £2,340 - £3,655 | £3,040 - £4,750 | £3,510 - £5,485 |
*Includes panel sizes from 2,400 x 1,200mm to 3,600 x 1,500mm. Higher-end figures account for the largest panel sizes.
As you can see, there are some noticeable differences between the costs. There are some influencing factors when it comes to bow window costs, these include:
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Number of panels: It goes without saying that the more panels you require, the higher the costs will be. To navigate this, you can speak to your installer about finding a style of bow window that best suits your needs while using the minimum number of panels needed. Alternatively, if you want more panels, consider opting for the cheaper material. For example, 5 panels in timber can be up to £4,240, but the same number in uPVC may be much less, at £2,825.
- Material choice: The most affordable bow window material is uPVC, with costs as low as £1,430 for a 4-panel option. This material is also popular because of its low maintenance and high insulation properties. However, other options such as timber and aluminium give you more choices in terms of durability, customisation, and appearance.
- Glazing type: Whether you opt for double or triple glazing, decorative glass, or special-coated glass, custom choices will always impact your total costs.
To help you understand these factors and to weigh up your options, we’ll take a look at each one in more detail throughout this article.
If you’re concerned about the financial impact of buying new or replacement bow windows, you may be able to benefit from windows grants through Government schemes, or with finance for windows options. To find out more, speak to your local authority or window installers who can help guide you.
Meanwhile, if you’re ready to get started with a new bow window installation in the UK, we can help! We know it can take a lot of research to find installers you can trust, that’s why we created a network of vetted professionals to save you time.
Avoid wasting hours reading reviews and filling out forms, waiting weeks for a reply. Just complete our 30-second form, and you’ll get up to 4 free quotes from local installers in under 48 hours.
It’s free, with no obligations attached. Click below to begin.
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Types of bow windows
Bow windows come in a variety of styles, depending on how their individual glass panes are configured. This can give you more options on the look and the cost of new windows. Each type offers its own unique benefits, those available include:
Curved bow window
Curved bow windows are the most commonly used style, as they offer a continuous, semi-circular shape. Each panel is joined at very slight angles (around 10 degrees) to create a smooth, curved effect which increases the field of view and maximises natural light.
Segmented bow window
This style is similar in appearance to the curved bow window, but its construction differs slightly. In a segmented bow window, panels may be set at different angles to appear curved from a distance, but look more ‘segmented’ up close. This style is often chosen as it can be less costly and involve fewer panels than a curved option (although panel size will largely be determined by the overall width you require).
Circle bow window
A circle bow window offers a more obvious protrusion from the home, with enhanced mouldings at the roof and base of the window. This option is less common, as it can be more complex and costly to install, but visually, this type of bow window offers something more customisable to a building’s architectural style.
Whilst each type of bow window offers a similar overall appearance, slight differences in their construction can offer various price points and customisations. Some other variations to consider include:
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Number of panels used:
Bow windows can be made with 4 to 6 panels (or sometimes even more) this will depend on the width and curvature you desire. The more panels you use, the larger the curve and wider the window.
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Window types:
Bow windows can incorporate many types of windows, including casement windows, sash windows, and tilt and turn windows. Depending on the type you require, this will impact the overall bow window costs.
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Decorative choices:
To ensure a look that blends with your property, you can also customise bow windows with features such as Georgian bars, leaded glass, and glazing patterns.
Now you understand your style choices, let's take a look at the materials that can be used.
Bow window materials
Bow windows in the UK are commonly available in three types of material: uPVC, aluminium, and timber. Each material offers different benefits and considerations, and will come at various costs. To help you compare, let’s look at each one in more detail.
uPVC
You may be familiar with uPVC (Unplasticized Polyvinyl Chloride), as it’s used for front doors, pipes, and cladding and is very commonly used in window frames. This is because it’s strong, weather-resistant, and hard-wearing. It’s also energy efficient, as it reduces heat-loss, and requires very little maintenance.
uPVC windows also cost less, compared to other materials, starting at £1,430 for 4 panels, or up to £3,655 for 6 panels.
Aluminium
If you’re looking for a material that has a long-lasting quality, aluminium is a great choice. This material is often chosen for its durability and resistance to corrosion and rust. It’s also very low maintenance and is available in a range of colours and finishes to suit your style.
Aluminium windows cost more than uPVC, but can last up to 40 years and, as a material, can be repeatedly recycled (offering a more environmentally friendly choice). Prices start at £1,860 for 4 panels, or up to £4,750 for 6 panels.
Timber
If you’re interested in a more natural look, timber windows can offer a unique and appealing aesthetic. They are highly customisable as they can be painted, and timber is a natural insulator that helps with your home’s energy efficiency.
One of the biggest benefits of using wooden windows in the UK is that they are a renewable material, making this an eco-friendly option. However, due to this, timber windows do require regular maintenance to protect against the weather and insects (such as varnishing and treating yearly).
Timber windows are considered a premium choice, as their costs are on the higher end. Prices for timber bow windows start at £2,145 for 4 panels, and can reach £5,485 for 6 panels.
If you want guidance on the best bow window materials for your needs, you should speak to qualified window installers. Not only will they assist with your decision, but can offer you bespoke quotes to compare.
Tracking down trustworthy installers can take time, with endless online searches and form-filling. Not to mention scrolling through reviewers to make sure you find a decent company! We know what a headache this can be - that’s why we’ve made things easier.Fill in our 30-second form and we’ll connect you with up to 4 installers, from your local area. All are highly qualified and vetted by us (so you don’t have to do the hard bit!)
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Bow window glazing
One of the most important aspects of any new window installation is choosing the right glazing for your needs. Bow windows can be fitted with a range of glazing options, each with its own benefits. Here are the most commonly available options:
Double glazing
Most modern windows use double glazing in the UK as standard. This consists of two panes of glass which are separated by a space filled with air or inert gas (like argon). This makes them great for insulating your homes. Due to this, double glazed bow windows offer good thermal efficiency while reducing outside noise.
The cost of double glazed windows is also one of the cheapest options. In addition, according to the Energy Saving Trust, you could save up to £140 per year on your energy bills, if you replace single-glazed windows with double glazing in the UK.
Triple glazing
To further enhance insulation, you could opt for triple glazing. This is when three panes of glass are used. Mostly, this option is only recommended for those in very cold climates, or areas with high noise levels, because triple glazed window prices can be higher than double glazing.
Secondary glazing
If you want to improve on noise reduction and insulation, but don’t want to choose a more costly option - or perhaps you’re unable to install new window panes due to building regulations - secondary glazing might be the perfect fit. Secondary glazing in the UK consists of fitting an additional pane of glass (or acrylic) to the inside of an existing window. This can either be a permanent fixture or a temporary, removable pane. By adding this secondary layer, you can reap the benefits of double or triple glazing, without the same costs or fitting requirements.
As well as choosing the type of glazing you need, you can also find custom options that have added benefits. These may be special types of glass or panes with treatments that improve their performance. Some of these include:
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Low-emissivity (Low-E) glass
This glass is treated with a special coating that helps reflect heat back into the room. It improves insulation and can reduce heating bills.
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Self-cleaning glass
With an added coating, this glass surface will break down dirt which enables rain water to easily wash it away. This reduces the need for regular cleaning and is especially good for those with windows in hard to reach areas.
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Solar control glass
This specially coated glass reduces the amount of heat that can enter the building, whilst still letting natural sunlight in. This can be a great choice if your windows face the sun for most of the day, and you wish to reduce a room's temperature.
There are many ways you can customise bow windows to suit your needs, whether it's through design, materials, or glazing. There are, however, pros and cons to most products we purchase that need to be carefully thought through.
Advantages & disadvantages of bow windows
To help you weigh up the choices, we’ve outlined the many advantages and key considerations of bow windows below.
Advantages
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Panoramic views
Due to the design of bow windows, their biggest benefit is that they can enhance a room's exterior view, giving you a complete range of vision across the full curve. This can significantly boost the appeal of any room, giving you a greater connection to the outdoors.
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More natural light
With such a wide viewpoint, naturally, more light can enter a room. This will make spaces feel larger, brighter and more inviting.
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Extra living space
Some bow window designs can create extra space within the home, as they project outwards. This space can be a great bonus and used for seating or storage.
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Increased ventilation
With multiple window panels, you can have multiple openings. This can greatly improve your ventilation and general airflow through your property.
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Design options
With a wide range of materials, finishes and glazing options to choose from you can create a bow window that suits your home design perfectly. This added touch of design can also boost a property’s appeal, and may increase its market value.
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Energy efficiency
Pairing double glazing with a high-insulating material like uPVC can offer increased levels of insulation. This, in turn, can reduce your home heating costs and improve the property’s overall efficiency.
Disadvantages
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Higher costs
Bow windows are, of course, a much more complex window style than other more typical designs. Due to the curvature and number of panels required, this can result in higher overall costs that should be weighted up against the alternatives.
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Complex installation
Fitting a new bow window can be complicated, requiring structural work like alterations or reinforcements, depending on the window’s weight. More complex installations usually take more time, which can increase an installer's rates. However, if you’re looking for bow window replacements, costs may be less as additional features may already be in place.
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More maintenance
If you live in an area that often requires you to clean your external windows regularly, you may want to consider this before choosing a bow window. With many additional panels and a curved shape, it can make maintaining your windows more of a challenge - particularly if it is in a difficult area.
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Structural requirements
As bow windows are made up of more panels and parts, they tend to be heavier than traditional windows. You will need to ensure you have a strong supporting wall where you want it to go (an installer can help you determine this).
Should you get bow windows?
Bow windows offer a stylish addition to any home that enhances natural light and gives you a stunning view range. Whether you’re looking out at a garden or admiring a vast landscape, bow windows are a great way to make the most of your surroundings.
These windows can be customised with material, glazing and finishing options to adapt to your home's style. However, each variation comes with its own cost considerations, and it’s important that you ensure your home can support these heavier window structures.
If you want to enjoy all the benefits of a bow window, but don’t know where to start, we can help.
We know it can be overwhelming trying to contact window installers, wasting hours of your free time scrolling through reviews and sending multiple emails, just to be left in the dark. That’s why we have a better solution!
Fill in our 30-second form and we’ll connect you with up to 4 installers, local to your area. Each is part of our network of vetted, highly-qualified professionals that you can trust. They’ll offer you free quotes to compare, with no obligations attached.
Just click below to get started.
- Quotes from local installers
- Payment by finance available
- Save up to £150 per year
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