How much do new windows cost?
In order to evaluate new window prices like for like, this guide walks you through the many elements you should take into account when looking up the typical new windows cost.

Windows play a crucial role in the overall energy efficiency, aesthetic appeal, and value of your home. However, the new windows cost can be a significant investment, and it’s important to understand the various factors that can impact the final price.
we’ll explore the average new windows cost in 2024, the different styles and materials available, and the additional factors that can influence the overall cost of your window replacement project. Whether you’re planning a full-home renovation or just need to replace a few outdated windows.
How much do new windows cost?
The new windows cost can vary widely depending on a number of factors, including the size, style, and material of the windows, as well as the location and complexity of the installation.
On average, you can expect to pay between £300 and £1,000 per window for a standard-sized, double-glazed replacement window.
However, it’s important to note that this is just a rough estimate, and the actual cost can be significantly higher or lower depending on your specific requirements.
The average price for new windows (2024)
The typical new windows cost is included here to give you an idea of what to budget for when you think about replacing your windows. These are only approximate pricing ranges, not an exact estimate, for replacing the windows in your house.
Depending on size, glazing style, and the number of replacements needed for the house, a white uPVC casement window is the most affordable choice, with costs ranging from £600 to £1,800.
Material | Average new window cost |
---|---|
uPVC casement window | £600-1,800 per window |
Sash window | 50% more than a casement window |
Tilt and turn window | 25% more than a casement window |
Bay window | 150% more than a casement window |
Aluminium frame | 25% more than uPVC |
Timber frame | 50% more than uPVC |
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The Style of new windows and cost difference
The new windows cost is not a one-size-fits-all equation. Several variables contribute to the final price tag, and understanding these factors is crucial for accurate budgeting and comparison shopping.
The style of the window you choose significantly impacts the overall cost. Some of the most common window styles include:

Casement Windows
Hinged at the side or top, casement windows are a classic choice and typically the most economical option. The average cost for a uPVC casement window ranges from $600 to $1,800 per unit.
A new casement window’s supply and installation might cost anywhere from £600 to £1,800 on average.
Sash Windows
Commonly found in period properties, sash windows feature two panels that slide vertically over each other. Due to their intricate design and traditional appeal, sash windows tend to cost approximately 50% more than casement windows.
Sash window replacements often cost 50% more than casement window replacements.
Tilt and Turn Windows
Offering versatility and secure ventilation, tilt and turn windows are a popular choice for both uPVC and aluminum frames. Their price point is typically 25% higher than that of casement windows.
Bay Windows
Projecting outward from the exterior wall, bay windows add architectural interest and create a sense of spaciousness. However, their complex installation and potential need for planning permission make them the most expensive option, costing around 100% more than casement windows.
Window style | Average price for new windows (per window) |
---|---|
Casement windows | £600-1,800* |
Sash windows | 50% more than casement |
Tilt and Turn windows | 25% more than casement |
Bay windows | 100% more than casement |
Safe and Sound Window Styles
What to consider when comparing the cost of new windows online
- Style of the frame
- Size of the frame
- Material used for the frame
- Double or triple glazed?
- Will you need scaffolding?
- Do you need planning permission?
- The cost of installation
The new windows cost listed on a website might seem cheap at first, but installation costs can leap up if you need to erect scaffolding to reach high windows.

The average price of Window Frame Material
The material used for the window frame plays a significant role in determining the cost. Here’s a breakdown of the most common options:

uPVC (Unplasticized Polyvinyl Chloride)
Renowned for its thermal efficiency, low maintenance, and affordability, uPVC is one of the most popular choices for double-glazed windows in the UK. The average cost for new uPVC windows ranges from $600 to $1,800 per unit, depending on size, glazing design, and the number of windows being replaced.
Aluminum
Durable and sleek, aluminum window frames offer a contemporary look and are a solid long-term investment. On average, aluminum windows cost approximately 25% more than their uPVC counterparts but are around 25% cheaper than timber frames.
Timber
While timber windows come with a premium price tag, they add undeniable charm and can significantly enhance the value of your property, especially in period homes or conservation areas. Expect to pay around 50% more for timber windows compared to uPVC alternatives.
Frame material | Average price for new windows (per casement window) |
---|---|
uPVC | £600-1,800 |
Aluminium | 25% more than uPVC |
Wood | 50% more than uPVC |
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Beware of cheap double glazing
Generally, if something appears too good to be true, it probably is. Additionally, never choose the least priced choice when doing house modifications because it will cost more in the long run.
What’s more, it might make your property less valuable when you sell it. There is no assurance of lifespan or material quality with a cheap new window.
- Scratches on new frames and glass
- Cheap uPVC can warp over time
- Incorrect frame sizes that need excessive expanding foam to force fit
- Bad installation that causes damp, leaks or draughts
- Double glazing desiccant - where the double glazing seal fails and bits get in-between the glass
- Condensation between the glass from poor seals
- Fading on the frames
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FAQs
With proper installation and maintenance, double-glazed windows can last for approximately 20 years. However, the lifespan can vary depending on the quality of the window units, the installation process, and environmental factors such as exposure to sunlight and extreme temperatures.
Yes, high-quality double glazing can increase the value of your property by up to 10%. However, it’s essential to ensure that the window style and color complement the overall aesthetic of your home, as inappropriate choices can potentially decrease property value.
The choice between double and triple glazing depends on your priorities and budget. While triple glazing offers superior thermal efficiency and soundproofing, it comes at a higher upfront cost. If energy savings and noise reduction are top priorities, triple glazing may be the better option. However, for most residential properties, double glazing can provide adequate insulation and cost savings.
Secondary glazing, which involves installing an additional layer of glazing over existing windows, can be a cost-effective alternative to full window replacement. The cost of secondary glazing can be up to 50% less than installing new double-glazed windows, making it an attractive option for period properties or homes where window replacement is not feasible or desired.
The colour and finish of the windows can significantly impact the overall cost. Coloured or woodgrain-effect uPVC windows, as well as powder-coated aluminium or stained/painted timber windows, can be more expensive than their basic counterparts.
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