Last updated on March 31st, 2022
Egress windows cost guide
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.
In this guide we look at the average egress windows cost in the UK, including installation. 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.

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.
In this guide, we look at the average egress windows cost in the UK, including installation. 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.
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 |
Our costs are ballpark averages – get a local tradesperson to quote now
How much does an egress window cost installed?
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 windows installation
As with all window installation projects, the total cost of installing an egress window will depend on a number of 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 the labour costs will increase.
For a bespoke custom-built egress window, the overall cost will be higher and the installation will often 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.
Why install egress windows?
Egress windows provide an important alternative access route from your property. As well as being governed by Building regulations, they all give you peace of mind 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 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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