James Elston
Published February 24, 2025
Last Updated on March 21, 2025
Contents
- 1 How Much Do Aluminium Windows Cost?
- 1.1 What is the Average Cost of Aluminum Windows in the UK
- 1.2 Which is Cheaper, Aluminium or uPVC Windows?
- 1.3 Factors That Can Affect the Price of Aluminium Windows
- 1.4 What Guarantees and Warranties Come with Aluminium Windows?
- 1.5 Is it Worth Getting Aluminium Windows?
- 1.6 What to Look for When Buying Aluminium Windows
- 1.7 Request a Free Quote for New Aluminium Windows
- 1.8 FAQs
How Much Do Aluminium Windows Cost?
If you’re looking to enhance your home with sleek, modern aluminium windows, you may be wondering about the cost. Aluminium windows offer numerous benefits, such as excellent durability, energy efficiency, and stylish design.
However, their price can vary depending on several factors, including the size, type, and quality of the window. In this blog post, we’ll break down the cost of aluminium windows, provide a comprehensive pricing guide, and answer common questions regarding installation.
Whether you’re a homeowner or a landlord in the UK, this guide will give you all the information you need to make an informed decision.
What is the Average Cost of Aluminum Windows in the UK
Below, we’ve outlined a breakdown of average prices for different aluminium window sizes and types to give you a clear idea of what to expect.
Standard Aluminium Window Pricing Table
| Window Type | Small (600mm x 900mm) | Medium (900mm x 1200mm) | Large (1200mm x 1500mm) |
|---|---|---|---|
| Secondary Glazed | £300 – £400 | £450 – £550 | £600 – £750 |
| Double Glazed | £350 – £450 | £500 – £650 | £650 – £850 |
| Triple Glazed | £450 – £550 | £650 – £800 | £800 – £1,000 |
| Bi-Folding Aluminium | £1,000 – £1,200 | £1,400 – £1,800 | £2,000 – £2,500 |
Note: These are rough estimates, and prices may vary depending on your location, the brand, and whether you’re opting for a premium or budget option.
How Much Do Coloured Aluminium Windows Cost?
The cost of coloured aluminium windows varies depending on the colour, finish, and whether you choose a single-colour frame or a dual-colour option (where the interior and exterior frames have different colours).
On average, coloured aluminium windows cost 10-20% more than standard white or grey options due to the additional manufacturing process.
Here’s a rough estimate of pricing based on size and finish:
| Colour | Small (600mm x 900mm) | Medium (900mm x 1200mm) | Large (1200mm x 1500mm) |
|---|---|---|---|
| Standard Colour (Grey, White, Black) | £350 – £450 | £500 – £650 | £650 – £850 |
| Custom RAL Colour (Any Bespoke Shade) | £400 – £500 | £550 – £750 | £700 – £950 |
| Dual-Colour Frame (Different Interior & Exterior) | £450 – £550 | £600 – £800 | £750 – £1,000 |
| Textured/Metallic Finish | £500 – £600 | £700 – £900 | £850 – £1,100 |
Which is Cheaper, Aluminium or uPVC Windows?
On average, aluminium windows cost 30-50% more than uPVC windows, but they offer several advantages that may justify the higher price.
Both materials have their advantages, but they come at different price points.
Below, we compare the costs of aluminium and uPVC windows to help you make an informed decision.
| Window Type | Small (600mm x 900mm) | Medium (900mm x 1200mm) | Large (1200mm x 1500mm) |
|---|---|---|---|
| uPVC Windows | £250 – £350 | £350 – £500 | £500 – £700 |
| Aluminium Windows | £350 – £450 | £500 – £750 | £650 – £900 |
Factors That Can Affect the Price of Aluminium Windows
Size and Dimensions
- Smaller Windows: Smaller aluminium windows are generally cheaper as they require less material and are quicker to install. These are ideal for spaces such as bathrooms or smaller rooms.
- Larger Windows: The larger the window, the higher the cost. These windows are often used in living rooms, kitchens, or areas where you want to maximise natural light.
Type of Aluminium Window
Casement Windows
Casement windows are hinged on one side and open outward. These are popular for their ease of use and airtight seal, which makes them energy efficient. Expect to pay between £350 and £600, depending on size and glazing type.
Sliding Windows
These windows slide horizontally and are perfect for areas with limited space. They are usually slightly more affordable than casement windows.
Bi-Folding Windows
Bi-folding aluminium windows are popular for opening up spaces and connecting indoor and outdoor areas. However, they are the most expensive option, with prices ranging from £1,000 to £2,500.
Glazing Options
Secondary Glazing
A cost-effective way to improve insulation by adding a second pane to an existing window. It enhances energy efficiency and noise reduction without fully replacing the original window. Prices vary but generally range from £300 – £750 per window.
Double Glazed
A more common choice, offering superior insulation and reducing energy costs. Double-glazed aluminium windows typically cost around £350 – £850.
Triple Glazed
If you’re looking for the best thermal and acoustic insulation, triple glazing is your best bet. Triple-glazed aluminium windows typically cost £450 – £1,000 but offer maximum energy savings in the long term.
Powder-Coated Aluminium Finishes
Aluminium windows are often coated with a powder finish, which offers a durable, corrosion-resistant finish. The price of aluminium windows can rise with custom finishes or colours, particularly those requiring high-end coatings.
Installation Costs
The cost of installing aluminium windows varies depending on your location and the complexity of the installation. On average, installation costs can range from £100 to £300 per window. For more complex installations (like bi-folds), expect the costs to be higher.
Removal of Old Windows
If you’re replacing old windows, removal and disposal can add an additional cost, typically ranging from £30 to £100 per window.
Customisations
If you’re opting for bespoke window designs or additional features (such as integrated blinds or security features), these can add to the overall cost.
Brand and Manufacturer
Different brands offer various price ranges, so the quality and brand reputation will play a part in pricing.
Security Features
If security is a top priority, you can enhance your aluminium windows with features such as child-proof locks, reinforced window sensors, or impact-resistant tempered glass. These upgrades provide extra protection but come at an additional cost.
Type of Glass
Standard glazing options are available, but you may choose to upgrade to specialised glass types, such as tinted, frosted, or toughened safety glass. These enhancements improve privacy, reduce glare, and increase durability, though they will add to the overall price.
What Guarantees and Warranties Come with Aluminium Windows?
Most aluminium window suppliers offer warranties ranging from 10 to 25 years, covering defects in materials, coatings, and hardware. Some premium suppliers provide lifetime guarantees on frames due to aluminium’s durability.
Key warranty aspects to look for:
✅ Frame & Structural Integrity – Typically covered for 15-25 years, ensuring protection against warping and corrosion.
✅ Glazing & Seals – Double and triple glazing warranties usually last 10-20 years, covering seal failures and condensation issues.
✅ Hardware & Moving Parts – Handles, locks, and hinges often have a 5-10 year warranty, depending on the manufacturer.
Always check the warranty terms and ensure proper installation to maintain coverage. Investing in a trusted supplier with a strong guarantee gives you peace of mind for years to come.
Is it Worth Getting Aluminium Windows?
Aluminium windows are a long-term investment that can add significant value to your home. Here are some reasons why homeowners and landlords in the UK choose aluminium windows despite their higher initial cost:
| Durability | Aluminium is incredibly durable and resistant to the elements, meaning your windows will last for decades with minimal maintenance. |
| Energy Efficiency | With the right glazing options, aluminium windows can help keep your home warm in the winter and cool in the summer, reducing energy bills. |
| Sleek Appearance | Aluminium frames allow for slimmer window profiles, providing a modern, contemporary look. |
| Low Maintenance | Unlike wood, aluminium does not require regular repainting or treatment, making it a low-maintenance option. |
| Sustainable and Eco-Friendly Choice | Aluminium is a fully recyclable material, making it one of the most environmentally friendly options for window frames. Unlike plastic-based alternatives, aluminium can be repurposed indefinitely without losing its quality, reducing waste and minimising environmental impact. |
| Wide Range of Colours and Styles | Whether you prefer a sleek, contemporary finish or a more traditional look, aluminium windows offer a vast selection of colour choices and design styles. Powder-coated finishes ensure the colour remains vibrant and resistant to fading, allowing you to customise your windows to complement your home’s aesthetic. |
| More Cost-Effective Than Timber Windows | While aluminium windows are often more expensive than uPVC, they are a significantly more affordable alternative to timber. Wooden frames require regular maintenance, including repainting and sealing, whereas aluminium provides a similar high-end appearance with minimal upkeep. |
| Slim and Lightweight with a Modern Look | Aluminium frames are naturally strong, allowing for ultra-slim profiles that maximise glass area and enhance natural light. Despite their lightweight nature, they are incredibly durable, providing a sleek, contemporary appearance that suits modern and traditional properties alike. |
What to Look for When Buying Aluminium Windows
When purchasing aluminium windows, there are several key factors to consider to ensure you get the best value and performance. Here’s a guide to help you make an informed decision:
Energy Efficiency
Check for thermal breaks and double or triple glazing to ensure the windows offer excellent insulation and energy savings.
Quality of Frame
Opt for high-quality aluminium that is durable, corrosion-resistant, and powder-coated for long-lasting protection.
Security Features
Look for secure locking systems, child-proof options, and reinforced glass to enhance safety and security.
Design & Aesthetics
Consider the style, colour options, and frame thickness to match your home’s aesthetic. Slimmer frames offer a more modern look and allow for larger glass panes.
Certification & Warranties
Ensure the windows meet UK building regulations and come with a reliable warranty to guarantee their longevity and performance.
Reputation of the Supplier
Choose a reputable supplier with good customer reviews and a history of delivering high-quality products.
Request a Free Quote for New Aluminium Windows
Are you considering upgrading your windows to energy-efficient, stylish aluminium windows? Don’t hesitate to get in touch! Request a free, no-obligation quote today, and our expert team will provide you with an accurate cost based on your needs and preferences.
Whether you’re renovating your home or enhancing the curb appeal of your property, we’re here to help you every step of the way. Contact Us to request your free quote now and start your journey towards the perfect aluminium windows.
FAQs
Which is costlier, aluminium or uPVC windows?
Aluminium windows are generally more expensive than uPVC windows. Aluminium typically costs 30-50% more upfront but offers better durability, energy efficiency, and aesthetic appeal. uPVC windows are a more budget-friendly option, with prices starting lower, but they may require more maintenance and have a shorter lifespan.
Which is cheaper, aluminium or steel windows?
Steel windows are usually more expensive than aluminium windows. Steel offers a robust and strong frame but tends to come at a premium price due to its material cost and manufacturing processes. Aluminium windows are more cost-effective and lighter, making them the preferred choice for most residential projects.
What is a cheaper alternative to aluminium windows?
A cheaper alternative to aluminium windows is uPVC windows. uPVC is a more affordable material that still provides good insulation and durability. However, uPVC windows may not offer the same sleek design, strength, or long-term performance as aluminium, making them better suited for more budget-conscious projects.
James Elston
Boiler Expert
James Elston is the top boiler replacement and heating expert at Eco Happy. He has over 20 years of experience in the industry, focusing on Gas Safe boiler installations and offering home-heating and energy-saving solutions to homeowners across the UK. From sourcing the most energy-efficient combi boiler to providing specialist heating advice, James ensures that Eco Happy maintains the highest standards and best customer service.