Average Window Prices For UK Homes 2026

Replacing your windows is a major home improvement decision, and cost is usually the first question homeowners ask. In the UK, window prices vary widely depending on property size, window type, materials, glazing, and installation complexity. Knowing realistic price ranges upfront helps you plan properly and avoid surprises.

This guide breaks down average window costs in the UK for 2026, including clear pricing for 2-bed, 3-bed, and 4-bed homes. You’ll see what most homeowners actually pay, what drives prices up or down, and how choices like uPVC vs aluminium, window style, energy ratings, and installation affect the final cost.

Use this page to benchmark quotes, understand where your budget sits, and decide which window options make sense for your home before speaking to installers.

Here’s a quick snapshot of what most UK homeowners pay in 2026.

TL;DR

• Price Range: Window prices in the UK for 2026 typically range from £300 to £1,200 per window, with some options as low as £160 or as high as £1,860.
• Material Costs: uPVC frames are the most affordable (£160-£1,240), followed by aluminium (£210-£1,615), with timber being the most expensive (£240-£1,860).
• Style Variations: Different window styles have varying price ranges, with casement windows being the most economical and bay windows the most expensive.
• Property Size Impact: Total replacement costs vary significantly based on property size, from £1,800-£4,450 for a 2-bedroom house to £5,000-£22,000 for a 4-bedroom house.
• Average cost of new windows for a 2 bed house in the UK will be in the region of between £3000 – £5000 for 5-8 new windows.
• Average cost of new windows for a 3 bed house in the UK will be in the region of between £4500 – £7000 for 8-10 new windows.
• Average cost of new windows for a 4 bed house in the UK will be in the region of between £6500 – £10000 for 10-15 windows in total.
• Energy Efficiency: Higher-rated energy-efficient windows cost more initially but can lead to long-term savings on energy bills.
• Installation Costs: Professional installation averages around £300 per window, which should be factored into the overall budget.
• Cost-Saving Strategies: Comparing quotes, considering energy-efficient options, and exploring available grants can help manage costs.
• Importance of Professional Installation: While DIY might seem cost-effective, professional installation is crucial for ensuring proper performance and longevity.
• Regional Variations: Window prices can vary across different UK regions, with London and the Southeast typically having higher costs.
• Long-Term Investment: Despite the initial cost, new windows can significantly improve a home’s energy efficiency, comfort, and overall value.

UNDERSTANDING WINDOW COSTS

The cost of new windows in the UK can vary significantly, typically ranging from £300 to £1,200 per window. However, prices can go as low as £160 for small, basic options and up to £1,860 for large, high-end a+ rated windows. Several factors influence these costs, with frame material and window style being the most significant. When it comes to frame materials, uPVC windows are generally the most affordable option, with prices ranging from £160 to £1,240 per window.

Triple glazing results in less heat loss through better thermal insulation, which is a big improvement over single glazing options, which also provide condensation reduction and noise reduction.

Aluminium windows are slightly more expensive, costing between £210 and £1,615 per window. Timber window frames, often preferred for their traditional aesthetic, are the most expensive, with prices ranging from £240 to £1,860 per window. Wooden windows also require maintenance to withstand the UK weather. Window styles also play a crucial role in determining the final price.

Casement windows, the most common type in the UK, typically cost between £300 and £800. Sash windows, popular in period properties, are more expensive, ranging from £500 to £1,500. Tilt and turn windows, offering versatile opening options, usually fall in the £400 to £1,000 range. Bay and bow window prices, which can add significant value to a property, are the most expensive, with prices ranging from £1,000 to £4,000.

FACTORS AFFECTING WINDOW PRICES

Beyond material and style, several other elements can impact the final cost of windows. The size of the window is a significant factor, with larger windows naturally costing more. The type of glazing also affects the price, with triple glazing being more expensive than double glazing but offering superior insulation properties with better thermal efficiency.

Energy efficiency ratings play a crucial role in window pricing. Windows with higher energy ratings tend to be more expensive, but they can lead to significant savings on energy bills over time. The complexity of the installation process can also increase costs, particularly if structural changes are required or if the property has unique features that make installation challenging.

Location is another factor that can influence window prices in the UK. Prices often vary between regions, with London and the Southeast typically having higher costs compared to other parts of the country. It’s always advisable to get quotes from local suppliers to get an accurate estimate for your area.

Other factors influencing double glazing costs include decorative features, alternative finishes, security features and window size.

IMPACT OF WINDOW TYPE ON COST

The type of window you choose can greatly influence the overall cost of replacing windows in a 3-bedroom house. Standard casement windows are generally the most cost-effective option, while more complex designs like bay or sash windows can increase expenses. 

Each style of window offers different benefits in terms of aesthetics and functionality, so it’s crucial to weigh these against your budget constraints.

REGIONAL COST VARIATIONS

Window prices can vary significantly depending on the region in the UK. For instance, London and the Southeast often have higher costs due to increased demand and higher living expenses. In contrast, regions like the North of England or Wales might offer more competitive pricing. 

It’s essential to consider these regional differences when budgeting for window replacements. Obtaining quotes from local suppliers can provide a more accurate estimate for your specific area.

WINDOW INSTALL PRICES

Like most things, different window installers will charge different prices for their services based on overhead, staff wages, supplier agreements, and brand reputation. Whilst you should always use a reputable company, the smaller local business might have lower overhead but fewer staff, while a larger national company may charge more to cover marketing or administrative expenses, but offer a wide range of additional features, like more colour options, decorative glass, popular styles and finance options.

Some installers rely on premium brands that push up costs, whereas others secure better bulk discounts on materials.

Experience, certifications, and trade memberships also affect quotes, reflecting in labor rates or warranty coverage. Comparing multiple quotes from window fitters and examining what each includes—like the scope of warranties, removal of old windows, and any aftercare—can help gauge overall value. Don’t just opt for the lowest cost option, always do your research.

WHAT IS THE AVERAGE PRICE OF A GOOD WINDOW?

The total cost for replacing windows depends largely on the size of your property. For a typical 2-bedroom house, you can expect to pay between £1,800 and £4,450 for a full set of new windows. A 3-bedroom house will generally cost more, with prices ranging from £4,000 to £16,500. Larger 4-bedroom houses can expect costs between £5,000 and £22,000 for a complete window replacement. For homeowners planning to move, the next question is usually whether this level of spend is actually worth it — particularly if you’re replacing windows purely to improve saleability rather than long-term comfort.

These price ranges account for variations in window sizes, materials, and styles across different property types. It’s important to note that period properties or homes with non-standard window sizes may fall outside these ranges due to the need for custom solutions.

Window Prices for Different House Types

When considering the cost of windows for a three-bedroom house in the UK, the type of house—whether it is semi-detached, terraced, detached, or a bungalow—plays a significant role in determining the final price. Each house type presents unique challenges and opportunities that can affect the cost of installation and materials.

For a semi-detached house, which typically features between 8 to 12 windows, the cost of double glazing can range from £4,500 to £7,000. This price range reflects the balance between the number of windows and the complexity of installation, which is generally straightforward compared to more complex property types. In contrast, a detached house, with potentially more windows and varied architectural features, can see costs rising to between £5,000 and £9,650. 

This increase is due to the larger number of windows and the potential need for custom solutions in unique architectural settings. Meanwhile, terraced houses, often with fewer windows due to shared walls, may incur costs ranging from £4,000 to £6,000. Bungalows, although similar in price to terraced houses, might benefit from lower installation costs due to easier access and the absence of upper floors, making them an attractive option for cost-conscious homeowners.

AVERAGE COST OF NEW WINDOWS FOR A 2 BED HOUSE IN THE UK

For a 2-bedroom house in the UK, the total price for new uPVC double-glazed windows (including supply and fitting) generally ranges between £3,000 and £5,000. This figure often covers around 5–8 windows, depending on layout.

Most 2-bedroom houses in the UK have 5 to 8 windows, depending on the property style, layout, and whether features like bay or French windows are included.

Costs can vary based on:

• Window style (casement, sash, tilt & turn)
• Glass type (standard double glazing, triple glazing, or low-emissivity glass)
• Frame colour and finishes
• Access difficulties or scaffolding needs

Opting for standard white uPVC casement windows keeps costs at the lower end of the range. Choosing bespoke colours, premium finishes, or acoustic glass will push costs higher.

AVERAGE COST OF NEW WINDOWS FOR A 3 BED HOUSE UK

For a 3-bedroom house, a typical cost band is £4,500 to £7,000. This might include 8–10 windows. These ballpark numbers assume standard casement or similar windows without high-end customisations, so personal choices around window style and any extra features can shift costs higher or lower.

Typically, these homes have 8 to 10 windows, though this can vary depending on the floor plan, window sizes, and whether features like bay windows or patio doors costs are included.

Key factors that influence pricing include:

• Window type (casement, sash, or tilt & turn)
• Material choice (uPVC, aluminium, or timber-look)
• Additional upgrades such as decorative glass, integral blinds, or security features

Most homeowners in the UK choose energy-efficient A-rated double glazing, which not only improves comfort but also lowers energy bills. If opting for more premium styles, like flush casement or heritage-style sash windows, expect costs to edge towards the upper end of the range.

AVERAGE COST OF NEW WINDOWS FOR A 4 BED HOUSE UK

For a typical four-bedroom house in the UK, installing new uPVC double-glazed windows (including both supply and fitting) generally costs between £6,500 and £10,000. This ballpark range covers standard window styles like casement or basic sash windows across the whole house. It assumes a full set of replacements (usually around 10–15 windows in total for a 4-bed home) and includes the cost of materials and professional installation.

These properties usually require 10 to 15 windows, covering all main rooms, hallways, bathrooms, and possibly patio or French doors.

Pricing will be influenced by:

• Style and size of the windows (larger or feature windows cost more)
• Choice of window material (standard white uPVC vs. premium woodgrain foils or aluminium)
• Energy efficiency ratings (standard double glazing vs. triple glazing or solar control glass)
• Optional extras (integral blinds, security locks, toughened glass)

Choosing standard white casement windows helps keep costs lower, while upgrades to heritage sash windows, bay windows, or bespoke colours will increase the overall spend.

Investing in energy-rated and secure windows also helps improve the property’s resale value and comfort, making it a worthwhile upgrade for most UK 4-bedroom homes.

These ballpark numbers assume standard casement or similar windows without high-end customisations, so personal choices around window style and any extra features can shift costs higher or lower.

With the exact figures depending on a multitude of factors, this range should cover most typical installations of casement or standard sash uPVC windows, including both the supply of the windows and professional installation.

Enhancing Energy Efficiency and Longevity with Double Glazing

Double glazing offers significant benefits for three-bedroom homes, particularly in terms of energy efficiency and longevity. By installing double-glazed windows, homeowners can reduce heat loss, leading to lower energy bills and a more comfortable indoor environment. The insulating properties of double glazing also help in reducing noise pollution, making homes quieter and more peaceful. Moreover, double-glazed windows enhance the security of a property by providing a more robust barrier against intrusions.

To maximize these benefits, it’s crucial to focus on the quality of materials and the installation process. High-quality materials, such as energy-efficient glass and durable frames like uPVC, aluminium, or timber, can significantly improve the performance and lifespan of double-glazed windows. Each material has its advantages: uPVC is cost-effective and low-maintenance, aluminium offers a sleek and modern look with long-lasting durability, and timber provides a traditional aesthetic with excellent insulation properties.

Proper Installation and Maintenance for Optimal Performance

Proper installation is essential to ensure the energy efficiency and longevity of double-glazed windows. Hiring a professional installer ensures that the windows are fitted correctly, minimizing the risk of drafts or leaks that could compromise their performance. A professional installation also typically includes a warranty, providing peace of mind and protection against potential issues.

Regular maintenance is another key factor in maximising the benefits of double glazing. Simple tasks such as cleaning the windows and frames, checking seals for any signs of wear or damage, and ensuring the proper functioning of locks and hinges can extend the life of the windows. Addressing any issues promptly, such as resealing windows that show signs of condensation, helps maintain their insulating properties and prevents further damage.

SAVING MONEY ON WINDOW REPLACEMENT

While quality windows are an investment, there are ways to manage costs without compromising on quality. One of the most effective strategies is to compare quotes from multiple suppliers. This not only helps you find the best price but also gives you leverage in negotiations.Consider energy-efficient options for long-term savings. While these windows may have a higher upfront cost, they can significantly reduce your energy bills over time.

Look into available grants or incentives for energy-efficient home improvements, as these can help offset the initial investment. Choosing uPVC frames can be a good way to balance affordability and performance.

These frames offer good insulation properties and durability at a lower cost compared to aluminium or timber. However, if you’re working with a period property, it may be worth investing in timber frames to maintain the building’s character.

LONG-TERM FINANCIAL BENEFITS

Investing in new, energy-efficient windows can lead to significant long-term savings. While the initial outlay may be substantial, higher-rated windows can reduce energy bills by improving insulation and reducing heat loss. Over time, these savings can offset the initial cost, making energy-efficient upgrades a financially sound decision.

COMPARING AND CHOOSING INSTALLERS

When budgeting for new windows, it’s crucial to factor in installation costs. On average, you can expect to pay around £300 per window for professional fitting. This can vary based on the complexity of the installation and your location. Some companies may offer discounts for larger projects, so it’s worth discussing this when getting quotes.

Proper installation is critical for ensuring the performance and longevity of your new windows. While DIY installation might seem like a way to save money, it’s generally not recommended unless you have significant experience. Poorly installed windows can lead to drafts, water leaks, and reduced energy efficiency, potentially costing more in the long run.

When choosing an installer, look for companies with accreditations that are members of recognised trade associations like the Glass and Glazing Federation (GGF). These organisations set standards for their members, providing an extra layer of assurance about the quality of work you can expect and it’s highly likely these installers can carry out a complex installation process.

While prices can vary widely, understanding the factors that influence costs can help you budget effectively for your window replacement project. Remember to obtain multiple quotes, consider long-term benefits, and choose a reputable supplier and installer.

By carefully weighing your options and understanding the current market prices, you can find the best window solution for your home and budget in 2026. Whether you opt for classic uPVC casement windows or cutting-edge triple-glazed aluminium frames, your new windows will enhance your home’s appearance and performance for years to come. If you’d like a more accurate cost based on your home feel free to contact us.