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Based in Cheddar, Majestic Designs (UK) Ltd is one of Somerset's highly recommended double glazing specialists.

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Are Casement Windows Secure?

18th August 2025 |

Aluminium

White uPVC Georgian casement windows

Secure casement windows.

Securing your property is a primary concern for most homeowners, who seek to keep both their possessions and family safe. Windows and doors are often the main entry point for burglars and other unwelcome visitors, which is why security should be at the forefront of your mind when it comes to upgrading or refurbishing your property.

Choosing high-quality, secure windows will ensure your property is not only kept warm and dry throughout the year, but also well-protected against potential intruders. A hugely popular option for homeowners across the UK are casement windows, an incredibly versatile window that works beautifully in almost all types and styles of home.

If you’ve been considering installing casement windows in your property, you may naturally be questioning whether they are secure. In this article, we’ll provide the answer, but first, let’s explain what casement windows are for those who don’t know.

What Are Casement Windows?

Casement windows are attached to their frame by hinges on the side, top or bottom, allowing them to swing open like a door. They’re usually fitted either singly or in pairs, and you can choose to leave them plain for a modern look with an unobstructed view out, or add glazing bars for a more traditional appearance.

Interestingly, the word ‘casement’ actually refers to the opening part of the window itself, which is why you’ll sometimes see ‘fixed casements’. These are non-opening sections that look like casements but don’t actually open. They’re often used to create larger window configurations where you might want light but not necessarily ventilation in every section.

Are Casement Windows Easy to Break Into?

The short answer is no. High-quality casement windows are designed to be remarkably difficult to break into. When manufactured well and properly installed, they offer excellent security through a combination of features that work together to deter intruders.

  • Multi-point locking systems – Modern casement windows lock at several points around the frame when you turn the handle, not just at one central point like older windows. This distributes the force evenly and makes it virtually impossible for someone to force the window open by applying pressure to weak spots.
  • Internal beading – Quality casement windows have their glazing secured from inside the property, meaning the glass can only be removed from within your home.
  • Double or triple glazing – Multiple panes of glass create a much stronger barrier than single glazing. Any attempt to break through would surely attract your attention or the attention of your neighbours.
  • Compression sealing – When closed, the window sash is pulled tightly into the frame by the locking mechanism, creating a secure fit with no gaps that could be exploited.
  • Security hardware – High-quality handles, locks and hinges are designed to resist tampering. Many come with additional features like key-operated locks for extra peace of mind on ground-floor windows.
White uPVC casement window

Modern casement windows are engineered from your choice of uPVC or aluminium.

Casement Windows at Majestic Designs

Majestic Designs has been improving the safety and appearance of homes across the South West for over 22 years. Engineered with durability and strength in mind, our range of casement windows is manufactured using A+14 rated double glazing for optimal energy efficiency, with your choice of aluminium or uPVC framing.

Manufactured right here in Somerset in our state-of-the-art factories, our fully employed, leading teams of FENSA-accredited and MTC-registered installers will be with you from consultation to installation to answer any queries you may have.

If you would like any more information about our range of bespoke windows, contact Majestic Designs today.

With over 3,700 independent reviews on Fairtrades.co.uk, Majestic Designs are proud to have earned an above 9.48/10 rating in customer satisfaction Click to find out more

Customer Testimonials

“The fitting team were a credit. Clean, efficient and pleasant to know. Site left in a very clean state. Thank you.”

Mr & Mrs Parrott, Weston-Super-Mare

“All round excellent service. Used you in our previous home and was delighted with both installations you have done for us. Thank you.”

Mrs Hammerley & Mrs Manson, Weston-Super-Mare

“I cannot fault anything & best thing I ever did. I am relieved & happy that I have attractive doors & windows. Thank you.”

Mrs O'Connor, Tiverton

“Thank you!”

Mrs Twitchett, Puriton

Local area installations

Serving clients across Somerset and the South West

Majestic Designs install quality double glazing products throughout Somerset. From Taunton to Yeovil and Weston-super-Mare to Wells; our insistence on quality installations and outstanding customer care remains the same. With our factories and showroom in Cheddar, we are conveniently located in the heart of Somerset, with easy access to the surrounding towns and villages. As part of the local community, we are dedicated to improving the lives of all our customers and by employing a local workforce we are investing in the future prosperity of the area.

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