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Window Price Calculator UK
Get instant estimates for your new windows with our free calculator. Compare prices for different window types, materials, and sizes to plan your project budget effectively.
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UK Window Price Calculator 2025: Estimate Your Window Investment
When considering new windows for your UK home, understanding the exact costs involved is crucial for budgeting. Modern windows not only enhance your home's aesthetic appeal but also significantly improve security, and natural light. Aluminium windows, known for their strength and sleek design, provide excellent durability with minimal maintenance requirements.
This comprehensive guide offers an in-depth look at window prices in the UK for 2025, helping you make an informed decision for your home improvement project. Use our free window price calculator above to get an instant, personalized price estimate.
Types of Windows in the UK
Windows come in various styles and designs, each offering unique benefits for different home types. Understanding the different window styles available can help you make the right choice for your property.
Casement Windows
Casement windows are one of the most popular window styles in the UK, known for their versatility and energy efficiency. These windows are hinged at the side and open outward, providing excellent ventilation and unobstructed views. They can be installed as single windows or in pairs, making them suitable for various room sizes and layouts.
Casement windows offer enhanced security due to their internal locking mechanisms and are available in different materials, including uPVC, aluminium, and timber. They are ideal for maximizing natural light and providing excellent thermal performance when fitted with double or triple glazing.
Sash Windows
Sash windows add a touch of traditional elegance to any property. These windows consist of two vertically sliding panels (sashes) that move up and down in tracks on the window frame. They are a hallmark of Georgian, Victorian, and Edwardian architecture, making them perfect for period properties or homes aiming for a classic aesthetic.
Modern sash windows combine traditional appearance with contemporary performance benefits. They can be manufactured with advanced materials and glazing options to improve energy efficiency and security while maintaining their historical charm. Timber sash windows offer authentic appeal, while uPVC options provide a more cost-effective alternative with lower maintenance requirements.
Tilt and Turn Windows
Tilt and turn windows offer exceptional versatility and contemporary style. These innovative windows can open in two ways: they can tilt inward from the top for secure ventilation or swing open fully from the side for maximum airflow and easy cleaning.
This dual functionality makes tilt and turn windows particularly practical for modern homes, especially in locations where external access is difficult. They provide excellent draught-proofing and security features, as well as enhanced safety for homes with young children due to their secure tilt position.
What Influences Window Prices?
Several factors impact the price of windows in 2025, including the material, glazing type, size, and installation process. Here's a breakdown of these elements:
Material Costs
The choice of window frame material significantly affects both the initial cost and long-term value:
uPVC Windows: The most affordable option, typically starting from £200-£500 per window. uPVC offers excellent value, low maintenance, and good insulation properties. uPVC windows are popular for their durability and weather resistance.
Aluminium Windows: Mid-range in pricing, usually £500-£900 per window. Aluminium windows offer a sleek, contemporary appearance with excellent strength and longevity. They're ideal for large glazed areas due to their structural integrity.
Timber Windows: Premium option, typically £800-£2,000 per window. Timber windows provide natural beauty, excellent insulation, and traditional appeal. While requiring more maintenance, they offer unmatched authenticity for period properties.
Composite Windows: High-end choice, ranging from £900-£1,800 per window. These combine the benefits of multiple materials, often featuring timber interiors with aluminium exterior cladding for both aesthetics and weather protection.
Glazing Options
The type of glazing affects both cost and energy efficiency:
Single Glazing: Rarely used in new installations due to poor thermal performance.
Double Glazing: Standard for modern windows, adding £150-£300 to the basic window cost. Double glazed windows offer excellent thermal and acoustic insulation.
Triple Glazing: Premium option adding £300-£500 to the basic window cost. Provides superior thermal performance and noise reduction, ideal for properties near busy roads or in colder regions.
Additional glazing enhancements like Low-E coatings, argon gas fills, warm edge spacers, and acoustic glass can further impact the price while improving performance. Use our Window U-value Calculator to understand the energy efficiency of different glazing options.
Window Size and Configuration
Larger windows require more materials and are more complex to install, increasing costs. Custom-sized windows typically cost 20-30% more than standard sizes. Similarly, windows with multiple opening sections or complex configurations (such as bay windows or arched designs) are priced higher due to additional manufacturing and installation requirements.
Installation Costs
Professional installation ensures proper functioning and energy efficiency. Installation costs typically range from £150-£400 per window, depending on:
Complexity: Standard installations in existing frames cost less than full frame replacements or installations requiring structural modifications.
Property Type: Installations in high-rise buildings or properties with difficult access may incur additional charges.
Regional Variations: Labor costs vary across different UK regions, with London and the Southeast typically commanding higher rates.
At Harrington Windows, we offer transparent pricing and professional installation services, with new customers enjoying 20% off their first project.
Average Window Prices in the UK for 2025
For a tailored estimate based on your specific requirements, use our Window Price Calculator above. Here's a visual comparison of average window costs by type and material:
UK Window Prices by Type and Material (2025)
| Window Type | Material | Supply Only | Fitted |
|---|---|---|---|
| Casement Windows | uPVC | £200 - £350 | £350 - £500 |
| Aluminium | £450 - £650 | £600 - £850 | |
| Timber | £800 - £1,200 | £950 - £1,400 | |
| Sash Windows | uPVC | £550 - £700 | £700 - £900 |
| Timber | £1,200 - £1,800 | £1,400 - £2,200 | |
| Tilt & Turn Windows | uPVC | £400 - £550 | £550 - £750 |
| Aluminium | £700 - £900 | £900 - £1,100 | |
| Bay Windows | uPVC | £1,200 - £1,800 | £1,500 - £2,200 |
*Prices are estimates and may vary based on specifications, glazing options, and your location in the UK.
Cost Savings Tip:
New customers at Harrington Windows receive 20% off their first window project. Combined with potential energy savings of up to £350 per year with modern double glazed windows, the investment can pay for itself over time.
Benefits of New Windows
Investing in new windows offers numerous advantages for UK homeowners, from practical benefits to aesthetic improvements. Here are the main advantages that make window replacement worth considering:
Improved Energy Efficiency
Energy efficient windows can significantly reduce heat loss in your home, leading to lower heating bills and a reduced carbon footprint. Modern double and triple glazed windows provide excellent insulation, keeping your home warmer in winter and cooler in summer.
Windows with low U-values minimize heat transfer, while special coatings can reflect heat back into your home. This improved thermal performance can lead to energy savings of 10-25% on your heating bills.
Enhanced Noise Reduction
Modern windows with double or triple glazing provide excellent sound insulation, reducing noise pollution from outside. This is particularly beneficial for homes in busy urban areas or near main roads, creating a quieter and more peaceful living environment.
Acoustic glass options can further enhance noise reduction, making your home a tranquil retreat regardless of external noise sources.
Increased Security
New windows incorporate advanced security features that older windows lack. Multi-point locking systems, toughened safety glass, and internal beading make modern windows much more resistant to forced entry.
Many contemporary windows are designed to meet strict security standards, providing peace of mind and potentially reducing home insurance premiums.
Enhanced Property Value
Installing new windows can significantly increase your property's market value and appeal to potential buyers. Quality windows enhance curb appeal and make a positive first impression, while their energy efficiency benefits are increasingly valued by environmentally conscious homebuyers.
Estate agents estimate that new windows can add 5-10% to a property's value, making them a worthwhile investment even if you plan to sell in the future.
Reduced Maintenance
Modern window materials, especially uPVC and aluminium, require minimal maintenance compared to older timber windows. They won't rot, warp, or need regular repainting, saving you time and money on upkeep.
These low-maintenance options simply need occasional cleaning to keep them looking their best, allowing you to enjoy their benefits without the ongoing maintenance commitment.
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Frequently Asked Questions About Window Costs in the UK
How much do new windows cost UK?
In the UK, new window costs vary significantly based on material, style, and size. For a standard-sized casement window, expect to pay £350-£500 for uPVC (fitted), £600-£850 for aluminium, and £950-£1,400 for timber. Sash windows typically cost £600-£900 for uPVC and £1,200-£2,200 for timber versions. For an average 3-bedroom semi-detached house requiring 8-10 windows, a full uPVC window replacement would cost approximately £4,000-£6,000, while aluminium windows might cost £7,000-£10,000, and timber windows £10,000-£16,000. These 2025 prices include VAT and standard installation.
How much are casement windows UK?
Casement windows in the UK typically cost £350-£500 for a standard-sized uPVC window (600x900mm) including installation. Aluminium casement windows range from £600-£850 installed, while timber options cost £950-£1,400. Prices increase with size, with large casement windows (1200x1200mm) costing approximately £550-£700 for uPVC, £800-£1,100 for aluminium, and £1,300-£1,800 for timber. Additional features like triple glazing, integral blinds, or special finishes can add 15-30% to these base prices. For maximum energy efficiency, A+ rated double glazed casement windows cost approximately £100-£150 more than standard double glazing.
How much does window installation cost UK?
Window installation costs in the UK typically range from £150-£400 per window, depending on complexity and location. Standard installations where existing frames are being replaced cost £150-£250 per window. Full-frame replacements requiring additional building work cost £250-£400 per window. Most professional installers calculate labor at £200-£300 per day, with a standard house (8-10 windows) taking 2-3 days to complete. Regional variations exist, with London and Southeast prices approximately 15-25% higher than the national average. Most reputable window companies include installation in their quoted prices, but always confirm this before proceeding. At Harrington Windows, we provide transparent pricing with installation included.
Do new windows add value to a house UK?
Yes, new windows typically add 5-10% to a UK property's value, with the exact increase depending on the quality, style, and energy efficiency of the windows installed. For a £300,000 property, this translates to a potential added value of £15,000-£30,000. Modern, energy-efficient windows are particularly valuable to prospective buyers, who recognize the long-term energy savings and improved comfort they provide. Beyond the financial return, new windows enhance curb appeal, improve security, reduce maintenance requirements, and can be a decisive factor for potential buyers. According to a 2023 Royal Institution of Chartered Surveyors report, energy-efficient improvements like new windows consistently rank among the top value-adding home improvements.
How much can you save with new windows UK?
Installing new energy-efficient windows in a UK home can save £150-£350 annually on heating bills, depending on your property size and the efficiency of your existing windows. For an average three-bedroom semi-detached house upgrading from single glazing to A-rated double glazing, the Energy Saving Trust estimates annual savings of approximately £235. Upgrading from older double glazing to modern, high-performance double or triple glazing typically saves £120-£160 per year. These savings increase in larger properties or those with numerous windows. Beyond direct energy savings, new windows can reduce condensation and drafts, improve thermal comfort, and potentially lower maintenance costs. With energy prices continuing to rise, the actual financial benefits may be even greater over the windows' 20-30 year lifespan.
How accurate are window cost calculators?
Window cost calculators like ours typically provide estimates with 80-90% accuracy when sufficient details are provided. Factors affecting accuracy include regional price variations, property-specific installation challenges, and current material costs. Our calculator uses up-to-date 2025 pricing data for different window types, materials, and sizes across the UK. For maximum accuracy, provide precise measurements and select the specific window features you're interested in. While online calculators offer excellent ballpark figures for budgeting purposes, we recommend following up with a professional survey for an exact quote. Harrington Windows offers free, no-obligation home surveys to provide precise quotes based on your exact requirements.
Conclusion: Choose Quality Windows for Your UK Home in 2025
New windows are a significant investment that can enhance your home's appearance, comfort, energy efficiency, and value. By using our Window Price Calculator, you can estimate costs accurately and make informed decisions about your window replacement project.
Whether you choose uPVC, aluminium, or timber windows, investing in quality products and professional installation will ensure the best long-term results. With our current 20% discount for new customers, there's never been a better time to upgrade your windows.