Aluminium Windows Price Guide: Understanding Your Investment
Main Takeaways
- Aluminium windows typically cost between £350 and £750 per window across the UK, with the average figure being around £475 according to Checkatrade data.
- Factors such as window style, size, glazing options, and installation costs alter the overall price of aluminium windows.
- Aluminium frames are durable, rust-resistant, and low-maintenance, which makes them a long-term investment despite their higher initial cost compared to uPVC windows.
- Colours and hardware options can also alter the total cost.
In recent years, aluminium windows have experienced a real spike in popularity, as their benefits (including allowing more natural light to flow into your home) become more widely known.
As well as the added perk of more sunlight, aluminium windows also give your living space a modern aesthetic, add durability, and can improve thermal efficiency.
Therefore, it’s no wonder that homeowners in the South East are flocking to add aluminium products to their homes. Although it goes without saying that the final cost will no doubt have an impact on whether or not projects go ahead.
In this guide, we’ll provide rough estimates of what you can expect to pay for aluminium windows and investigate factors that impact this figure, including style and colour options.
Broad Price Range for Aluminium Windows
To give you an accurate estimate of what you can expect to pay for aluminium windows, we’ve put together this simple table.
Data is collected from Checkatrade, and we’ve decided to focus on four of the most popular aluminium window styles: Casement, sliding sash, tilt and turn, and bay windows.
| Window Style | Estimated Cost per Window (Installed) | Details |
| Casement Window | £350 – £750 | The UK’s most popular window style, known for simplicity and versatility. |
| Flush Sash Window | £400 – £800 | Designed for a sleek, modern finish with frames that sit flush to the wall. |
| Tilt and Turn Window | £400 – £850 | Practical dual-function opening system, ideal for ventilation and easy cleaning. |
| Bay Window | £1,200 – £3,500 | A larger and more complex installation, typically costs more due to size and structure. |
Main Factors that Influence Aluminium Window Prices
Window Style
Different window styles come with different price tags. Below, we’ll discuss how the style of window you choose impacts the cost.
Casement Windows
Casement windows are the UK’s most popular window style due to their practicality and versatility.
The cost of aluminium casement windows typically ranges from £350 to £750 per unit.
These windows are hinged at the side and open outward, allowing for great ventilation.
Flush Casement Windows
Flush casement windows offer a modern twist on the traditional design, providing a sleek and stylish appearance with smooth, flush-fitting frames.
The price for flush casement windows can be slightly higher, generally falling between £400 and £800.
Tilt & Turn Windows
These windows are a great choice for high-rise properties or those in hard-to-reach locations.
With a dual-opening system, they are easy to clean and maintain.
The cost for tilt & turn aluminium windows typically ranges from £450 to £850.
Bay Windows
Bay windows, with their curved or angular structure, allow for maximum natural light and stunning views.
Due to the fact that you often need to add additional space to your home, the cost is slightly higher, at around £1,200 – £3,500 according to Checkatrade.
The window styles themselves are likely to be casement windows, with the bay window often referring to the structure as a whole.
Window Size
The size of your aluminium windows plays a big role in the final cost.
Larger windows naturally require more materials, which increases the price.
Bigger windows can also make the installation process more complex, leading to higher labour costs.
If you’re installing multiple windows at once, some suppliers may offer a reduced price per window, helping you make savings overall.
Glazing Options
Choosing double or triple glazing for your aluminium windows will improve energy ratings and help to reduce heating costs. You can also upgrade the type of glass, with options such as tempered, tinted, or laminated safety glass, which offer added strength and protection. Different glazing types will influence the final window cost, particularly if you opt for higher-spec security or thermal performance glass.
Colours & Hardware Options
Aluminium windows are usually supplied in anthracite grey, black, or silver as standard but can be powder-coated in almost any RAL colour.
Selecting a bespoke colour generally increases the cost by around 10–20% according the Checkatrade data, depending on the finish and supplier. Some homeowners also opt for dual-colour frames, where the interior and exterior colours are different, to perfectly match their home’s style.
Installation Costs
While the cost of the windows themselves is important, don’t forget to factor in installation costs.
Installation fees can vary based on the complexity of the job and the number of windows being installed.
On average, installation costs for aluminium windows range from £100 to £250 per window. The higher end of the range usually involves more complex installations, such as those for larger windows like bay windows, or installations in non-standard locations.
Are aluminium windows worth it?
Absolutely.
Aluminium costs a little more upfront, but it’s an investment in strength, style, and longevity.
The slim frames let in more light, the powder-coated finishes stay looking fresh with hardly any maintenance, and the material itself is built to last for decades without warping, cracking, or rusting.
Plus, with modern thermal break technology, today’s aluminium windows are impressively energy efficient. When you factor in the long-term savings and unbeatable design flexibility, aluminium easily justifies its price tag.
Aluminium Windows from Sherborne
At Sherborne Windows, we offer a wide range of aluminium windows to suit any home improvement project.
Our products are designed with both aesthetics and functionality in mind, ensuring that you get the best of both worlds.
From energy-efficient thermal break windows to slimline aluminium designs, our products provide outstanding durability, minimal maintenance, and impressive performance.
We offer various window styles, including:
- Casement Windows: A practical option for any home.
- Tilt & Turn Windows: Ideal for hard-to-reach areas.
- Bay Windows: Perfect for bringing in natural light and providing expansive views.
- Flush Casement Windows: Growing in popularity throughout modern homes.
- Slimline Aluminium Windows: Sleek and modern, with thin frames for more natural light.
We also offer a range of colours and finishes, including our popular anthracite grey and more traditional shades like Chartwell Green. Our windows are finished with highly durable, weather-resistant powder coatings, ensuring long-lasting protection.
Who are Sherborne Windows?
Sherborne Windows is a family-run business that has been serving homeowners across Hampshire, Surrey, Berkshire, and South-West London since 1990.
We pride ourselves on offering top-quality home improvement solutions, from windows and doors to conservatories and orangeries.
Our commitment to excellence has earned us numerous industry accolades, including Best Installer – Residential 2020 and Conservatory Installer of the Year at the G Awards.
We are FENSA-approved and hold certifications from Assure and others, ensuring that you can trust us to deliver the highest standard of workmanship.
If you’re interested in installing aluminium windows in your home, we’d be happy to provide a free, no-obligation quote. You can contact us on 01252 370917 or email us at enquiries@sherbornewindows.co.uk for more information.
FAQs
How do new windows help lower energy bills?
New windows with high energy ratings help stop heat from escaping your home. This means you’ll spend less on heating costs, and your energy bills should drop noticeably — especially with energy-efficient aluminium windows fitted with modern thermal breaks.
What type of glass is best for energy efficiency?
For the best performance, look for double or triple glazing with a low-E coating. The type of glass you choose makes a big difference to energy costs in the long run, keeping your home warmer without needing the heating on as much.
What affects the average cost of aluminium windows?
The average cost of aluminium windows depends on the size of the window, type of glazing, frame colour, and overall aluminium window costs.
Is aluminium a more expensive material than uPVC for window installation?
Yes, aluminium is a more expensive material, but it offers low maintenance, longer lifespan, and better strength compared to other window frame options.
How can double glazing help lower energy costs?
Double glazing reduces heating costs and energy bills by improving insulation, giving you peace of mind that your home stays warmer for less.
