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Last updated: 15 August 2024
How much do egress windows cost?
Whether you're planning an egress window out of choice or obligation, this guide will help you understand how much egress windows cost in the UK.

Fast Facts
On average, egress windows in the UK cost in the region of £1,800 - £3,700
The cost of your egress window will depend on the size and quality, among other factors
For accurate prices, speak to local egress window specialists in your area
We'll look at the installation cost of different quality egress windows and the factors affecting their price.
How much do egress windows cost to install?
Quality of window (supply and installation) | Range - Low | Range - High | Average cost |
---|---|---|---|
Basic egress window | £1,300 | £2,200 | £1,800 |
Mid-range egress window | £2,200 | £2,800 | £2,500 |
Premium egress window | £2,900 | £4,500 | £3,700 |
Last updated: May 2024 Our costs are ballpark averages - get a local tradesperson to quote now |
The average egress window installation cost will depend on the quality of the window you’re installing. A basic egress window installation will cost about £1,800.
The price of a mid-range egress window with the supply and installation is around£2,500.
Or, if you’re going for a premium egress window, you’ll be looking at a cost in the region of £3,700.
Factors affecting the cost of egress window installation
As with all window installation projects, the total cost of installing an egress window will depend on several factors, including:
Size
Type and quality of materials used
The complexity of the installation
Any structural work needed
Where you live
If you choose a prefabricated egress window, the material costs will generally be fixed at the beginning of the project, once you’ve chosen the exact window you want.
The biggest variable comes with labour costs. If the egress window installation is complicated, then labour costs will increase.
For a bespoke custom-built egress window, the overall cost will be higher. The installation also usually be more complex and take longer than a premade option.
Also, it’s worth noting that if you’re converting a basement, the egress window installation cost will be affected by any structural work needed.
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What is an egress window?
An egress window, otherwise known as a means of escape window, is an emergency escape window – dictated by Building Regulations.
Although it can apply to a window on any floor, referring to an emergency egress window is often a basement or lower ground floor window built to provide an access route from homes on lower levels of a property.
If you’re developing a property and replacing windows or installing new ones, we recommend speaking to a construction expert for guidance on emergency escape routes.

Why install egress windows?
Egress windows provide an important alternative access route from your property.
For starters, you may need to install an egress window to meet current Building Regulations.
It can also give you peace of mind knowing that you have a means of escape in case of an emergency, such as:
Escaping from a burning house
Getting out of the house in the event of an earthquake or flood
Escaping from an intruder
If you’re replacing egress windows in your home, it’s important to check that any new windows offer the same size escape route.
For new extensions or building conversions, it’s important to check with your local planning office to see what regulations might affect your project.
Useful egress window checklist
Check with your local planning office for guidance on means of escape for your property
Speak to local window experts for professional advice and quotes for accurate prices
Shop around for fair and competitive egress window installation costs
Always hire a tradesperson with experience and ask to see examples of their previous work
Where possible, hire a tradesperson with relevant accreditations, such as the Competent Persons Scheme
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