Understanding the Cost of Double Glazing

Double glazing is a popular home improvement choice in the UK due to its ability to enhance energy efficiency, reduce noise, and increase the value of a property. However, the cost of double glazing can vary significantly based on several factors including the type of window, the material, and the size of the installation. In this article, we will provide a comprehensive breakdown of double glazing costs, including a detailed price list for different materials and window types. We will also discuss the different types of double glazing windows available and help you understand which type might be the best for your needs.

Factors Influencing Double Glazing Costs

➜ Window Material: The material of the window frame plays a significant role in determining the cost. The common materials used are uPVC, wood, and aluminium.

➜ Window Style: Different styles of windows such as casement, sash, tilt and turn, and bay windows have varying costs.

➜ Size of Windows: Larger windows or those with custom dimensions will naturally cost more.

➜ Number of Windows: Bulk installations often come with discounts, but the overall cost increases with the number of windows.

➜ Glazing Options: The type of glazing, such as standard double glazing, triple glazing, or special coatings for enhanced insulation, can affect the price.


Find Your Ideal Window Price Range!

Use our tool to get an instant price range based on your selected window type, material, and size. For a more detailed, customized quote tailored to your specific needs, please submit the form below. You'll receive free online or remote quotes from multiple tradesmen to ensure you get the best deal for your project!


Get Started Now:

Select Window Type: Choose from various window types.

Choose Material: Pick the material that best suits your needs.

Pick a Size: Enter the size of the window for precise pricing.

Window Price Comparison Tool

Window Price Comparison Tool

Fill out the form to request a personalized quote from experienced tradesmen. It’s quick, easy, and completely free!

Window Cost Comparison Tool

Window Cost Comparison Tool

Average Costs for Different Window Materials

Average Costs Based on Material Type and House Type
House Type No. of Windows uPVC (Average Cost) Wood (Average Cost) Aluminium (Average Cost) Composite (Average Cost)
Studio Flat 3 £1,125 £2,250 £2,700 £3,000
1-Bedroom Flat 4 £1,500 £3,000 £3,600 £4,000
2-Bedroom Flat 6 £2,250 £4,500 £5,400 £6,000
3-Bedroom Flat 8 £3,000 £6,000 £7,200 £8,000
2-Bedroom House 8 £3,000 £6,000 £7,200 £8,000
3-Bedroom House 10 £3,750 £7,500 £9,000 £10,000
4-Bedroom House 12 £4,500 £9,000 £10,800 £12,000
5-Bedroom House 15 £5,625 £11,250 £13,500 £15,000
Semi-Detached House 12 £4,500 £9,000 £10,800 £12,000
Detached House 18 £6,750 £13,500 £16,200 £18,000
Townhouse 16 £6,000 £12,000 £14,400 £16,000
Bungalow 10 £3,750 £7,500 £9,000 £10,000

Why is it Important to Compare Window Costs?

Comparing window costs is crucial for several reasons:

  • Budget Planning: Understanding the average cost for different materials and house types helps in accurate budget planning, ensuring that you are financially prepared for the project.
  • Material Selection: Different materials offer various benefits in terms of durability, maintenance, and aesthetics. Comparing costs helps in selecting the best material within your budget.
  • Value for Money: By comparing prices, you can find the best deals and ensure you are getting the most value for your money.
  • Quality Assurance: Higher costs often correlate with better quality and longer-lasting materials. Comparing costs allows you to balance quality and budget effectively.
  • Informed Decision: Making an informed decision based on comprehensive cost comparisons helps avoid overspending and ensures satisfaction with the final outcome.

Get a Detailed and Customized Quote

Pricing Table for Double Glazing Windows


Below is a detailed table showing the approximate costs for double glazing in the UK for various materials and window styles. These prices are indicative and can vary based on specific requirements and regional differences.


Window Style Prices
Window Style Prices
Window Style uPVC Wood Aluminium Composite
Casement Window £250 - £500 £500 - £1,000 £600 - £1,200 £700 - £1,300
Sash Window £500 - £700 £900 - £1,400 £1,000 - £1,500 £1,100 - £1,600
Tilt and Turn £400 - £650 £750 - £1,200 £800 - £1,300 £900 - £1,400
Bay Window £1,000 - £1,800 £2,000 - £3,500 £2,200 - £4,000 £2,500 - £4,500

Additional Costs

  1. Installation: The cost of installation can vary based on the complexity of the project and the rates of the service provider. On average, installation costs range from £200 to £400 per window.
  2. Customizations: Special features such as decorative glazing, special coatings for UV protection, or enhanced security features can add to the cost.
  3. Repairs and Maintenance: Wooden frames, in particular, require regular maintenance which can add to long-term costs, whereas uPVC and aluminium are relatively low-maintenance.
cottage windows double glazing
Double glazing sash windows

Window Types in London


→ Casement Windows

Description: Casement windows are hinged at the side and open outwards like a door. They are popular due to their versatility and ease of operation.


✓ Excellent ventilation as the entire window can be opened.

✓ Highly secure with multiple locking points.

✓ Good for thermal and noise insulation.


✗ Can be obstructive when open, especially in tight spaces.

✗ Regular maintenance required for the hinges.


  • uPVC: £250 - £500
  • Wood: £500 - £1,000
  • Aluminium: £600 - £1,200

 Sash Windows

Description: Sash windows consist of one or more movable panels (sashes) that slide vertically or horizontally.


✓ Ideal for traditional and period properties.

✓ Can be fitted with modern glazing to improve efficiency.


✗ More complex and expensive to install.

✗ Can be prone to draughts if not properly sealed.


  • uPVC: £500 - £700
  • Wood: £900 - £1,400
  • Aluminium: £1,000 - £1,500

→ Tilt and Turn Windows

Description: Tilt and turn windows can be tilted inwards at the top for ventilation or opened fully inwards from the side for easy cleaning.


✓ Highly versatile with two opening options.

✓ Excellent for ventilation and easy cleaning from inside the house.


✗ Complex mechanisms can be more expensive to repair.

✗ Limited style options compared to casement and sash windows.


  • uPVC: £400 - £650
  • Wood: £750 - £1,200
  • Aluminium: £800 - £1,300

→ Bay Windows

Description: Bay windows extend outward from the main walls of a building, creating a bay in the room.


✓ Add space and light to a room.

✓ Enhance the aesthetic appeal and value of a property.


✗ More expensive due to the complexity of installation.

✗ Requires significant structural work.


  • uPVC: £1,000 - £1,800
  • Wood: £2,000 - £3,500
  • Aluminium: £2,200 - £4,000

→ Bow Windows

Description: Bow windows consist of four or more window panels that curve outward, creating a rounded appearance.


✓ Provide a panoramic view and increase natural light.

✓ Create a sense of space within a room.


✗ Higher cost due to the curvature and installation complexity.

✗ Can require more maintenance than flat windows.


  • uPVC: £1,200 - £2,500
  • Wood: £2,500 - £4,000
  • Aluminium: £2,800 - £5,000

→ Sliding Windows

Description: Sliding windows open horizontally by sliding one panel over another, perfect for spaces with limited room.


✓ Space-saving design ideal for smaller homes.

✓ Easy to operate and maintain.


✗ Less airtight than other styles, potentially leading to drafts.

✗ Limited design versatility.


  • uPVC: £300 - £600
  • Wood: £600 - £1,200
  • Aluminium: £700 - £1,400

Fixed Windows

Description: Fixed windows do not open and are used primarily for light and aesthetic purposes.


✓ Provide unobstructed views and maximize natural light.

✓ More energy-efficient due to fewer moving parts.


✗ Cannot be opened for ventilation.

✗ Limited functionality.


  • uPVC: £250 - £500
  • Wood: £500 - £1,000
  • Aluminium: £600 - £1,200

Awning Windows

Description: Awning windows are hinged at the top and open outward, providing ventilation while keeping rain out.


✓ Excellent for ventilation even during rain.

✓ Enhance privacy while allowing light in.


✗ Can be more expensive than traditional styles.

✗ Limited opening width may restrict airflow.


  • uPVC: £400 - £700
  • Wood: £800 - £1,300
  • Aluminium: £900 - £1,500

Top 5 Materials for Double Glazing: Which One is Right for You?

When it comes to upgrading your windows, choosing the right material for double glazing is crucial. Each material has its unique benefits, costs, and drawbacks, making it essential to compare them to find the best fit for your home. In this blog, we’ll explore the top five materials used for double glazing, focusing on cost, durability, energy efficiency, and aesthetic appeal.

Read more »

Comparing Double Glazing Prices: What You Need to Know

When it comes to home improvement, installing double glazing windows is one of the most effective upgrades you can make. Not only does double glazing enhance the aesthetic appeal of your home, but it also significantly improves energy efficiency, reduces noise pollution, and increases property value. However, with a plethora of options available, understanding how to compare double glazing prices effectively is crucial. In this blog, we’ll explore the key factors that influence double glazing prices and provide tips for making informed choices.

Read more »

The Ultimate Guide to Double Glazing: Benefits and Costs Explained

Double glazing has become a popular choice for homeowners across the UK, not only for its aesthetic appeal but also for its significant functional benefits. In this comprehensive guide, we’ll explore the advantages of double glazing, break down the costs associated with various materials, and help you make an informed decision for your home.

Read more »

Best Type of Double Glazing Window


The best type of double glazing window for your home depends on several factors including your budget, the architectural style of your property, and your specific needs.

⇨ For Budget-Conscious Homeowners: uPVC casement windows offer a good balance of affordability, energy efficiency, and security.

⇨ For Traditional Properties: Wooden sash windows maintain the period character while providing modern insulation benefits.

⇨ For Modern Homes: Aluminium tilt and turn windows offer a sleek, contemporary look with excellent functionality.

⇨ For Maximizing Space and Light: Bay windows, although more expensive, can significantly enhance the aesthetic and functional space of a room.

Benefits of Double Glazing

➜ Energy Efficiency: Double glazed windows significantly reduce heat loss, leading to lower energy bills.

➜ Noise Reduction: They provide effective sound insulation, making them ideal for homes in noisy areas.

➜ Enhanced Security: Double glazed windows are harder to break, providing better security against break-ins.

➜ Increased Property Value: Installing double glazing can increase the value of your property due to improved aesthetics and energy efficiency.



Investing in double glazing is a significant decision that can offer long-term benefits in terms of energy efficiency, security, and property value. By understanding the costs associated with different materials and window styles, homeowners can make informed choices that align with their budget and preferences.

For an accurate quote, it is advisable to contact multiple suppliers and installers, as prices can vary based on location, specific requirements, and the service provider's expertise. Researching and comparing options will ensure that you get the best value for your investment in double glazing.



Getting Quotes by yourself is time consuming and tedious, that is why  you have US! submit your contact details and let us get you a free remote quote as per your requirements