Casement windows are one of the UK’s most popular types of window. They are energy efficient, versatile, and functional. The great thing about these types of windows is that they provide maximum ventilation in any location, due to their side-hinged positioning. The windows can be hinged to open outwards from the top (awning windows), or the bottom (hopper windows) of the window frame.

How Do Casement Windows Work?

Suitable for any style of property, casement windows are usually hinged at the side of the frame, the window opens outwards (but can be manufactured to open inwards too) and is held open with a traditional casement stay or a modern casement friction hinge or crank mechanism.

Pros And Cons Of Casement Windows



Double glazing or triple glazing your casement windows offers fantastic insulation and security.


If you’re considering replacing the windows in your home, casement windows are a great choice due to their versatility. The frames can be uPVC, timber or aluminium, adapted to bespoke sizes and are available in a variety of color finishes.

Good ventilation

Casement windows are open top to bottom and can either be extended fully for maximum ventilation or angled slightly to catch breezes, helping to circulate air around your home.

Fully insulated

The window sash in casement windows presses against the frame to create an airtight seal when closed. This helps prevent cold air entering and warm air escaping, improving the energy efficiency of your home and reducing heat loss.

Good visibility

Casement windows offer a clear view of the outside when open and when closed, allowing a lot of natural light into any room.


Not suitable near exterior walkways

As most open outwards, if your windows are near an exterior walkway casement windows won’t be the best option for you. An inward opening tilt and turn window would be a better option.

Size limitations

Again, due the outward opening design, you may find the size of the casement window suitable for your home is fairly limited. This is because the frame needs to support the weight of the glass. A bigger ‘ceiling to floor’ window style may be more suitable.

Are Casement Windows An Expensive Option?

The cost depends on a variety of factors, including:

  • Quality
  • Performance
  • Material
  • Style
  • Glazing
  • Finish
  • Hardware

Will Replacing My Windows Improve The Value Of My Home?

Replacing the windows in your home before you sell may well make your home more attractive to potential buyers. It will improve home security, smarten up the exterior and could add between 5-10% to your home’s resale price. It will also improve your home’s Energy Performance rating (EPC) and potentially increase the value of your property by an additional 6-14%.

If you’re considering upgrading your windows and would like to discuss the options available to you, do contact us to discuss your requirements. We’re here to help.