Should I choose Storm or Flush Casement windows?

Windows are a significant purchase but if you aren’t familiar with the terminology, it can be difficult to choose between different types.

Today, we’re here to explain the differences between storm and flush casement windows, to help you make the right choice.

What is a stormproof casement window?

First introduced to the UK in the 1950s, stormproof casement windows are designed to offer increased protection against harsh weather conditions.

Casement windows have one or more exterior hinges and may be single or in pairs within the frame. They can be opened from the top or bottom and swing outward.

Unlike a flush casement window, which sits flush against the frame, they have a lip to stop the window from going further into the frame. 

Storm Casement Windows

Also known as ‘lipped’ windows, stormproof casement windows have a lip or casement that sits over the external frame for an embossed look. In theory, this sash or casement adds an extra layer of weatherproofing, hence the name.

The wind pushes the lip into the seals to further reduce the chance of drafts and heat loss. They also perform well for energy efficiency, security, and effective noise reduction.

Benefits

  • Weatherproof – Designed to withstand strong winds and heavy rain
  • Secure – Outward swing makes entry difficult, multi-lock systems are also available 
  • Good ventilation 
  • High acoustic performance
  • Embossed appearance
  • Easy to clean
  • Light in natural light
  • Provide great views
  • Range of glazing options
  • Customisable – Can be finished in any RAL colour in smooth or grained effects

Flush Casement windows

Flush casement windows sit flush with the frame, offering a sleeker look. Marrying a traditional look with modern technology, they are one of the most popular window choices for UK homeowners. We can manufacture our flush casement windows two ways – with a traditional mock mortise and tenon joint or with more modern ‘invisible’ welds, it is up to you. 

Benefits

  • Weatherproof – High performance against standard UK weather
  • Secure – Outward swing makes entry difficult, multi-lock systems are also available  
  • Good ventilation 
  • High acoustic performance
  • Seamless, minimalist appearance
  • Easy to clean
  • Light in natural light
  • Provide great views
  • Range of glazing options
  • Customisable – Can be finished in any RAL colour in smooth or grained effects

Types of casement windows 

Durable, thermally efficient and full of natural beauty, our high-quality timber casement windows are available in sustainable woods such as Sapele, Accoya and Meranti. With double-glazing and a 10-year insurance-backed guarantee as standard, these attractive windows are made to look good and built to last.

Slimline aluminium windows

Looking for something a little different? Our slimline aluminium casement windows utilise larger panes of glass and slimmer sightlines for fantastic views. Ideal for modern or period properties, our slimline aluminium windows are low maintenance but high style and offer the same 10-year insurance-backed guarantee for your peace of mind. 

What is the difference between a traditional casement window and a stormproof window?

Although you may think the main difference is weather performance, thanks to modern technologies enhancing the traditional flush casement window, the main difference is in appearance. 

It mostly comes down to personal preference – do you prefer an embossed or a minimalist look?

What is the main drawback to the use of a casement window?

We’ve looked at some of the benefits of both types of casement windows, but there are a few disadvantages to this type of unit. The main disadvantage is that they require more components. As such, they have more pieces that can break, are harder to use, and more difficult to repair.

Other disadvantages of casement windows include:

  • Tend to be heavier – can put stress on the frame over time
  • More difficult to install
  • Can be expensive
  • Can’t be covered by blinds curtains when opened

Are casement windows worth the investment?

This really depends on your needs. If you live in an area with harsh weather conditions, such as heavy rainfall and/or strong winds, stormproof casement windows will offer you the peace of mind you crave. If this does not apply, stormproof casement windows will still enhance your insulation and may add value to your property. 

Alternatively, flush casement windows enhance the appearance of your home, provide extra security and privacy, and offer spectacular uninterrupted views. However, they are better suited to smaller rooms where they can provide plenty of natural light.

You may prefer sliding sash windows which come with their advantages and drawbacks.

Contact Us

If you want to know more, please call 0161 976 4739, email [email protected] or fill in our online quote form for a free, no-obligation quote.

We look forward to hearing from you.