Window Frame Styles: Which Window Style Should You Choose?

19 December 2019
Updated 27 March 2020

You’ve decided to upgrade your windows to double or even triple-glazed windows.

You’re starting to look at various double glazing installers near you to carry out the work, getting quotes and picking up brochures for inspiration on which window style you should choose.

But you may end up with five or six brochures that basically say the same thing.

That’s why we wanted to create a one-stop-shop for you to go to to learn about the different window styles and designs, allowing you to make an informed decision on which style you think would suit your home the best.

The key styles we’ll be looking at are:

  • Casement
  • Sliding Sash
  • French Casement
  • Tilt and Turn


Perhaps the most popular window style on the list, the casement window is the most versatile and the most commonly found window style installed in UK homes.

With its ultra-slim frames, allowing more visibility and light entering the home, the beautifully aesthetic design is perfect for any modern or even traditional home.  

Both panes can be opened and unlocked as well as the top smaller window panes, allowing for complete airflow through the house and ultimate flexibility to open the different windows depending on the temperature and the weather.

Sliding Sash

Embodying more of a traditional look, the sliding sash window allows for the window to be lifted up or pushed down to open the window to generate airflow through the house.

The window can also be tilted inwards as it contains a pivot point, this helps to clean the window internally rather than needing to use ladders to clean the window.

It also has the ability to keep children safe as restrictors can be fitted to the bottom of the window, preventing children from opening or tilting the window.

Sliding sash windows are a great option for versatility and more of a traditional look for homes.

French Casement

Perhaps this most simplistic window frame on the list, the French casement window opens out to expand the property and to give more living space, whilst allowing for maximum airflow to enter the property. This is especially beneficial for the hotter, summer months.

The ultra-slim window frame allows for maximum views through the window with minimal obstruction. This is a great benefit for health reasons as there is more natural light entering the property.

French casement windows are more commonly associated with flats and apartments where space is restricted, therefore opening out the windows creates the illusion of extra living space.

Tilt and Turn

Tilt and turn windows offers scenic views and unobtrusive ventilation. The ability to “tilt and turn” the windows to open them and allow for air ventilation is quite unique compared to the other window frame variations on the list.

You may find that tilt and turn windows are more commonly found in flats and apartments where space is an obvious issue, therefore, the ability to tilt the window inwards makes use of tight spaces, whilst still being able to open the window.

Furthermore, for high apartment buildings where homeowners may not be able to clean their windows, tilting the window inwards allows for cleaning the window from inside the apartment.

Which window style should I choose?

It really depends on the type of property, the style you like the look of the most and practicality, which “fits” in with your property.

For example, if you own a large 4 bedroom detached house with a spacious front and back garden, opting for tilt and turn window frames may ultimately be pointless as there is no reason to restrict living space.

Whereas if you own a flat that is positioned close to another block of flats, then a french casement window may also not be the best option as space is limited.

So it really comes down to the type of property and the practicality of the property. Then design, style and other features should factor in.

I know what frame I want, what’s next?

Take a look at our network of installers and find an installer near you. Start gathering quotes from potential double glazing installers and compare the different offers you receive. 

Alternatively, get a completely free, no-obligation quote online here to give you an initial idea of how much your new window frame style will cost.

Then, you have a rough estimate of how much the window frame may cost.

Once you have shortlisted a double glazing installer, explain to them what you want and they will help you start the process of installing your new windows in your property.