Guide to window installation cost – price and factors

Thinking of getting new windows fitted in your home? find out how much it could cost with our installation guide.

We’ll take you through the price and factors for new windows, including window material, window type, window size, accessibility and other factors. We even share tips to help you reduce the cost of window installation.

New window cost

When it comes to home improvement projects, few are as impactful as installing new windows. Not only do windows enhance the aesthetic appeal of your home, but they also contribute to energy efficiency and overall comfort.

However, one significant factor that often comes into consideration for homeowners is the cost of window installation.

A good way to get a more in-depth look at window installation costs is by looking online at suppliers, such as Value Doors, and getting an idea of what windows you want to see and the kind of budget you might need for them.

In this expansive guide, we delve into the various factors that influence window installation costs, providing you with the insights you need to make informed decisions for your home.

Factors influencing window installation cost

Before delving into specific cost estimates, it’s essential to understand the factors that contribute to the overall expense of window installation. Here are some key considerations that can affect window installation costs.

Window material

The material of the window plays a significant role in determining the installation cost. Standard options include uPVC, wood, and aluminium, each with its own price range.

The most expensive material for windows tends to be timber, which is known for bringing a sleek, heritage style to the properties in which it is fitted. However, despite the high price, wooden windows are far more prone to damage or scratching than other materials, meaning you may be paying even more to maintain them.

uPVC windows are the cheapest material and are a great budget option for new window installation. Although they are cheap, uPVC can sometimes warp and swell in humid temperatures, making them much less energy-efficient and effective against draughts.

A middle option for window installation costs is aluminium windows, which are built for security and long-lasting performance. On top of this, they are also highly thermally efficient and can help you reduce your energy bills by retaining more heat.

Window type

Different window styles, such as double-hung, casement, bay, or tilt-and-turn windows, come with varying installation costs based on their complexity and size.

Window size

Larger windows generally require more labour and materials, leading to higher installation costs compared to smaller ones.

For example, bay windows are usually one of the most expensive when it comes to manufacturing and installation due to how big they are and how much work is required to properly fit them.


The accessibility of the installation site can impact costs. Windows on upper floors or in hard-to-reach areas may require additional equipment or labour, thus increasing the overall expense.

Additional features

Extra features like decorative glass, energy-efficient coatings, or custom hardware can add to the total cost of window installation.

For windows, some additional hardware could include patterned or laminated glass and Georgian bars.

Average window installation costs

While specific costs may vary depending on various factors, here’s a general overview of the average window installation costs based on national averages:

  • Single Hung Windows: On average, expect to pay between £1,000 to £1,700 per window for installation.
  • Double Hung Windows: Installation costs typically range from £1,300 to £2,000 per set of windows.
  • Casement Windows: Installation for casement windows may cost anywhere from £500 to £850 per window.
  • Bay Windows: These larger, more complex installations can range from £1,600 to £8,400 or more, depending on size and customisation.

It’s important to note that these are average estimates, and actual costs may vary based on individual project requirements and location-specific factors.

Tips for reducing window installation costs

While window installation is a significant investment, there are ways to mitigate costs without compromising on quality. Here are some tips to help you save money on your window installation project.

Compare multiple quotes

Obtain quotes from multiple reputable contractors to compare prices and services offered. This way, you can see what kind of prices you can pay for window installation and make sure you end up with the best price possible.

Consider energy efficiency

Investing in energy-efficient windows qualifies you for tax credits or rebates, offsetting some of the installation costs over time.

Also, getting windows installed that have lower U-values and are more thermally efficient will mean that your windows retain heat better, and you won’t have to use as much heating and energy throughout your home, saving you on your bills.

Bundle projects

If you’re planning other home improvement projects, consider bundling them with your window installation to negotiate better rates.

DIY vs. professional installation

While DIY installation may seem cost-effective, it’s essential to weigh the risks and potential savings against the benefits of professional installation, especially for complex window styles or multi-story homes.

Schedule off-peak

Some contractors offer discounts during off-peak seasons, so scheduling your installation during these times may result in lower costs.

Cost of window installation

To sum up, getting to know the various factors that influence window installation costs is essential for homeowners embarking on this home improvement journey.

By considering factors such as window material, type, size, and additional features, you can better estimate the total expense of your project.

Remember to obtain multiple quotes, explore energy-efficient options, and consider long-term savings when making decisions about your window installation.

With careful planning and informed choices, you can achieve a successful window installation project that enhances the beauty, comfort, and efficiency of your home.