How much does an Aluminium window cost?

How much does an Aluminium window cost? If you’re considering replacing or upgrading your windows, cost is typically the first thing that comes to mind. Aluminium frames generally attract homeowners who appreciate a clean, modern aesthetic and seek something long-lasting and relatively low maintenance. But how much do you budget for them? The price in the U.K. is not set, though, it changes depending on frame size, choice of glass, finish you want and how the installation is carried out. Here we’ll cover average price ranges, what impacts the total bill and why aluminium can be a good investment for your home over time.

Aluminium Window Styles and the Cost(s) of Aluminium Windows

In search of updating your house with aluminium windows? Each type of Aluminium window is designed to meet varying requirements, whether you want to bring as much natural light into your home as possible, need something that opens and closes easily, or serves as a decorative feature within your home.

Casement Windows – £540–£960

Casement windows cost between £540 and £960. They are one of the most flexible and affordable types of windows. I love how they swing out and are hinged on the side, which lets in a lot of air. A standard 1000×1000mm double-glazed aluminum casement will cost you about £750, but prices can range from £540 to £960. Casements are likely to give you a window that is both useful and long-lasting, stays within your budget, and looks good.

Sliding Windows – £665–£675

Windout windows slide horizontally on a track – an excellent choice for wider openings where you want to enjoy a great view. They’re easy to open and close, and don’t take up much space on the opening side. This is great if you have a smaller room or if they are located near a walkway. A premium slide window made of aluminium will start from about £665–£675 per window.

Tilt & Turn Windows – ~£1,025

If flexibility is important to you, tilt-and-turn windows are a good option. They can be opened inward from the top to ventilate without compromising security, or outward from the side to allow for cleaning and escape in an emergency. This two-in-one feature comes at a price, however, with average prices of £1,025 per window. Though more costly, many homeowners consider them a good investment in safety and convenience.

Bi-fold Windows – ~£2,000

If you want a modern touch, bi-fold windows look amazing. But those fold neatly off to one side, opening up your living area to the outdoors. They are particularly popular for modern kitchen extensions and garden rooms, where you want to create a seamless connection to your patio or garden. A good aluminium bi-fold window usually starts from £2,000 – an indication of the specialist hardware and fitting required.

Sash Windows – ~£2,000

Aluminium sash windows bring the best of both worlds: if your home has a period theme or you’d simply like to maintain its character, these windows are the perfect step forward. They replicate the traditional up-and-down appearance, but also boast the durability and easy cleaning that’s inherent with contemporary aluminium. They cost around £2,000 each on average, but their sleek design and durability make them a good investment for period properties in the long term.

Bay & Bow Windows – £4,750 – £1,550

Bay and bow windows are designed to provide additional depth, light, and space to a home. They act as a stunning living room and front elevation feature. Costs vary depending on the number of panes and the size of the installation, typically ranging from £1,550 to £4,750. Although an investment, these windows can significantly change the look of your home, both inside and out.

Panoramic/Floor-to-Ceiling Windows – ~£3,500

For a contemporary statement, it’s hard to go past floor-to-ceiling or panoramic aluminium windows. They flood your home with sunlight, erase the line between indoors and out and, in some cases, can make a house feel like a luxury spaceship (for better or for worse). As you would imagine, this superior version will cost you a pretty penny — approximately £3,500 each. They work well in modern renovations and new builds that are looking to maximise natural light.

Pricing-Size-Glazing-Frame Quality

When it comes to the prospect of new aluminium windows, it’s not just style that is a driving factor in costs. Window sizes, decorative glass options, and finish preferences will also impact the overall price. Understanding these concepts can help you stay focused on budgeting and strike the right balance between beauty, performance, and long-term value.

Size Matters

Simply put, the larger the window, the more expensive it is. More glass and bigger frames translate to higher material and installation costs. Hypothetically, a 600×900mm casement window in aluminium would cost between £540 and £680, while a 1000×1000mm unit could cost as much as £960. Suppose you’re factoring in big, dramatic feature windows. In that case, a price increase is proportionate, with the added benefit of more natural light in your home, which helps it feel more comfortable and reduces your need for artificial light.

Glazing Options

The Glazing itself plays a huge role when it comes to energy efficiency, security and, of course, price.

Double Glazing (Standard) Double Glazing is now commonplace in the UK. It is a good insulator and is included in the price of most aluminium windows.

Triple Glazing (+£150–£300 per window): If you require the ultimate thermal performance, particularly for homes in colder climates or city dwellings, triple Glazing offers even further insulation and noise reduction. It will add about £150-£300 per window, but you’ll make the savings back by being warm and not having to listen to the noise of the outside world.

Secondary Glazing (+£100–£250) This is an extra internal pane installed behind your existing window. It’s an economical method for increasing insulation and controlling drafts, without having to replace the entire frame, and it usually costs between £100 and £250 per window.

Frame Finish

Aluminium offers numerous design options; the finish you select may also impact the price.

(Standard) Aluminium: The cheapest option (material-wise). When you purchase the van, it will have a lovely shiny metallic silver or grey look from the factory.

Powder Coated Colours (+10-20%): Anthracite grey or black are common additions, increasing the price by 10-20%. This long-lasting finish is fade-resistant and UV-resistant, providing decades of use.

Dual Colour / Premium Finishes (High End): Want a completely different colour on the outside to the inside (or a specialist metallic or textured paint)? You’ll pay more for this finish, but you’ll get a totally personalised end product that complements not just the décor of the outside and inside of your home, but also, realistically, one that you’ve been unable to find in a standard colour grid.

Comprehensive Breakdown of Aluminium Window Installation Costs

The price of aluminium windows is not only determined by the frames and glass you choose, but also by the professional installation capabilities. Selecting competent installers is crucial, not just to ensure your new windows look fantastic, but also to comply with UK building regulations, achieve maximum energy efficiency, and keep your manufacturer’s warranty. Here’s what you can expect in terms of fitting costs.

How Much Does Labour Cost for Aluminium Window Installation?

In general, throughout the UK, you can expect to pay a window fitter an average of between £25 and £35 per hour, or approximately £200 and £280 per day. Rates are higher in some areas than others, with London and the South East generally at the top end of the scale. These numbers also include the skill of the trained fitter, who ensures that your windows are correctly installed in accordance with the FENSA standard or an equivalent standard.

How Much Does It Cost to Install One Aluminium Window?

On average, you’ll need to spend £80–£100 to install the frame plus £25–£30 per glass pane. For a typical two-pane casement, the installation cost is approximately £130 to £160 per window. This may sound like an added cost, but professional fitting is what ensures your windows work as they should — with seals and insulation intact, keeping your home nice and warm, soundproof, and secure.

What Extra Costs Should You Expect for Aluminium Windows?

There may be some extra costs, depending on what you’re working on:

New Openings (£300–£1,000): Opening up walls will incur significantly higher costs if new window space requires engineering, particularly if new structural support, such as lintels, is needed.

(Rubbish Removal, approx 150£pt)Removing the old windows and frames often comes with a cost. Legitimate installers do this for you and reuse materials where possible.

Building Regulations Certification (~£25 per window): For every new window you install in your property, you must meet the building control standards. When you go to sell, you are given a certificate (either an FENSA certificate or a building regulations sign-off) that proves the work was done correctly, thereby protecting the property’s value.

Total Cost of Aluminium Window Installation (Supply & Fit)

All in all, the complete cost of supply and fit will range from £475 to £3,000 per window, depending on the size, style and complexity of the work to be undertaken. At the low end, this will be for your standard casement windows; at the high end, large panoramic or bay windows with specialist Glazing.

It’s hard to resist the allure of lower-cost installation, but the security, efficiency and long-term use you are paying for need to come from professional installation.

How Much Does It Cost to Maintain Aluminium Windows?

One of the best things about aluminium windows is how little time they require for maintenance. Unlike wood that needs refreshing every few years with sanding, painting, and sealing, aluminium is engineered to last with little more than occasional maintenance. Which means less hassle for you, and lower costs over the life of your windows.

Low Maintenance

Maintaining your aluminium windows is straightforward. Simply wipe them down with warm water and a mild detergent if they become dirty or dusty. Because both feel as big and generous as they look — you won’t be perched on the edge of these seats, waiting to sizzle your hot derrière — and their chic, powder-coated finish is very tough. Hence, you needn’t worry about peeling paint or fading colour, even after years of exposure to the UK weather.

How Durable Are Aluminium Windows?

Aluminium frames are impervious to warping, swelling and rotting – all wooden window killers – and they won’t crack or discolour in sunlight like some plastics can. That natural durability allows your windows to still open and close easily, with a neat, finished look that lasts year after year, without requiring expensive maintenance.

How to Repair Aluminium Windows?

Repairs are an extremely infrequent duty, but periodically checking the seals and hardware is a good practice. Over time, hinges, handles, and locking mechanisms may require minor adjustments or lubrication, while any worn underside seal can be easily and cost-effectively replaced. By inspecting it periodically, you’ll ensure that both the frame and the Glazing last as long as possible.

Cost Over Time

Once installed with aluminium, there are a few recurring costs when measured against other materials. As they have an average lifespan of 30-40 years, you’ll eliminate the cost of repainting or replacing rotten frames every few years. This is what makes aluminium a savvy investment in the long run, helping you save money and ensuring you can rest easy knowing that your windows will continue to function perfectly year after year.

Why Aluminium Windows Offer Great Long-Term Value

With aluminium windows, you’re investing in more than just a modern look – you’re investing in a product that was created to offer value long into the future. Consider the range of lasting benefits your renovation or development project could enjoy, spanning from strength and weather resistance to energy efficiency, which makes aluminium such a smart choice in the UK for homeowners.

Durability

Heavy-duty windows. Nothing keeps water out like heavy-duty windows, and aluminium is one of the most durable and strongest window materials on the market. No warping, cracking, or discoloring, unlike timber or uPVC. Aluminium is a lightweight yet strong material that can last in the region of 30-40 years, or even longer, with no maintenance, thanks to its natural resistance and the varied conditions in the UK.

Energy Efficiency

Modern aluminium windows come with sophisticated thermal breaks – insulated barriers between the inside and outside of the frame that reduce heat and cold flow. Paired with high-performance double or triple Glazing, this technology helps keep your home warmer in winter and cooler in summer, reducing heat loss and lowering your energy bills.

Resale Value

It can add value to your home. Switching to aluminium windows can also increase your property’s value. Buyers are increasingly drawn to the clean, modern lines of aluminium, as well as the peace of mind that comes with improved energy efficiency and enhanced safety for their home. If you plan to sell your home in the future, having professionally installed aluminium windows can make it more attractive and competitive on the market.

Savings Over Time

Although more expensive than uPVC, the higher initial costs of aluminium windows are easily offset by their much lower maintenance costs and reduced energy bills. You don’t need to budget for repainting, and you’ll avoid constantly replacing them, while the long-lasting performance will also mean you get more bang for your investment over the years.

Sustainability

Aluminium is also an environmentally responsible option. It is 100% recyclable without detriment to its strength or quality, and a significant portion of aluminium currently in use has already been recycled. By choosing aluminium, you’re not just investing in your home – you’re putting your weight behind a more sustainable future.

Conclusion & Next Steps

Aluminium windows are an investment in style, performance, and the long-term value of your home. They have a 30-40 year lifespan with minimal upkeep and superb energy efficiency, making them a safe and smart investment for your home. Whether you’re replacing a couple of windows or updating your home with panoramic Glazing, the perfect aluminium windows will add comfort, security and kerb appeal to your property for many years.

At IDL Windows, we provide and install top-quality aluminium windows nationwide, fitted by expert fitters who truly value precision, adherence to legislation, and excellent customer service. We will help you at every stage, from your first clinic appointment to receiving your certification quickly, easily, and hassle-free.

👉 Well prepared to enhance your house with aluminium windows? Meet our friendly team today for an informal, no-obligation quote or home survey. We will help you choose the perfect style, size, finish, and glazing to make your home look great and work well.

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