What is the typical cost of replacement windows?

Updated February 21, 2017

Replacing your old windows can help save you money on your heating or cooling bill, while adding value to the resale value of your home. The cost of replacement windows varies based on the size and type of window you choose, as well as the manufacturer. The price range for a typical replacement window is £122 to £455. This is based on your existing opening that is structurally intact. The price reflects the replacement window, installation and removal of the old window.


Removing and disposing of your old windows should be part of the estimate of replacement window installation. Dry rot or other damage around your existing window could add to the cost of your replacement window installation. Costs will be based on the type of work needed to repair the damage. Custom sizes can also increase the cost of your replacement windows by as much as 50 to 100 per cent over the original cost of the replacement windows.


Replacement windows can have energy efficient features, such as heat reflection, low-E coatings and argon gas between glass panes. These have become standard on many lines of replacement windows. New options available include vinyl and fibreglass window frames along with a tilt in function for easy cleaning. Typical costs for the extras vary based on the manufacturer of the windows.


Replacement windows not only help reduce your utility bill, but they add beauty and design interest to your home. You're not restricted to the same shape of window that you remove. Today's replacement windows offer interesting shapes and designs along with their energy efficiency.


Installing the replacement window yourself could save you as much as £22 to £65 or more per window. You could also save money by purchasing your replacements at a local home improvement store then hiring a handyman to install your new windows. Make sure your installer is experienced and knows how to properly seal your replacement window. If you choose to purchase your windows through a manufacturer, get several estimates. Some manufacturers consider certain sizes to be custom, while others consider the same sizes to be standard.


While replacing your windows may cut your home's energy bills by up to 15 per cent, it may take years to recoup the costs of the replacements by your energy bills alone. Typically, replacing your windows does not mean that the window casing is replaced, just the window glass and the moving parts. Before replacing your windows for energy efficiency reasons, check the seal on your existing windows. You may be able to repair the seal and increase your energy efficiency without replacing your window.

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About the Author

Katherine Kally is a freelance writer specializing in eco-friendly home-improvement projects, practical craft ideas and cost-effective decorating solutions. Kally's work has been featured on sites across the Web. She holds a Bachelor of Science in psychology from the University of South Carolina and is a member of the Society of Professional Journalists.