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Casement windows are one of the most popular window styles for homes and it’s clear to see why. They are a versatile yet affordable option. They are normally hinged at the side with the frame allowing for plenty of light to fill your home. With no way for the handle to be turned from the outside, casement windows are also considered one of the most secure windows styles – as long as you remember to keep them closed and locked at night and when you’re not in.

brown flush sash windows

As the nights get darker and winter approaches, burglaries and break-ins can often see a rise. This is thought to be due to longer nights giving potential criminals more opportunities under the cover of darkness. Also as it nears Christmas, many homes may have expensive gifts lying around. This is the perfect time to consider how to make your casement windows more secure.

Replacing your windows for the highest levels of performance

If your windows are single glazed or an older form of double glazing, it may be worth considering getting them completely replaced. As well as ensuring they offer the maximum security, your home’s comfort and energy efficiency will also be vastly improved. If your home still has its original single glazed wooden windows, while they may still look in good shape, they could be compromised internally. Over time, older wooden windows can become fragile and this affects their security, how weatherproof they are and their thermal efficiency.  If water seeps in, the windows can expand and weaken which will see them lose heat. Older windows weren’t necessarily designed with security at the forefront and this makes them an easy target for burglars.

Replacing your windows with modern uPVC frames will considerably improve your home’s thermal efficiency and security. We offer safe and secure Liniar windows which are fitted with high security multi-point locking as standard. All of our windows are put through extensive testing to ensure that they are durable, secure and built to last. As well as this, our windows offer all the other benefits you can expect including high levels of thermal efficiency, durability and a wide range of attractive colours and finishes. Our windows won’t weaken and offer robust weatherproofing throughout the year.

You could also consider aluminium casement windows. As well as giving a modern and sleek look, aluminium is an extremely strong and durable material. It’s lightweight yet incredibly strong which allows it to hold large frames of glass giving your home more light but also staying strong against damage. To give you even greater peace of mind you can choose to have extra features such as toughened, obscured or laminated glass, triple glazing and additional locks. To find out more about what we can offer, talk to one of our window experts.

Secure window locks for your peace of mind

upvc window close up

All of our casement windows come with high quality multipoint locking mechanisms as standard. Multipoint locks feature a strip which bolts into the side of the window and locks at multiple points along the frame, adding heightened security compared to a single lock. They are all also internally beaded which means that the window cannot be removed from the outside. All of our handles and hardware offer attractive finishes and colours while never compromising on security.

Accreditations that show we care

When choosing secure windows, you’ll want to ensure that they have certain security accreditations. Our windows are independently tested to the requirements of PAS 24 and Secured by Design. PAS 24 is a security standard that is achieved once a product such as a window or door has been thoroughly assessed for its security performance levels.  Secured by Design is a police initiative that ensures that windows and doors offer enough protection to deter and prevent crime.

The secure choice for double glazing across the South East

Here at Unique Glazing, we are the ‘go to’ double glazing company serving the South East of England. Across Berkshire, Surrey, Oxfordshire & London we have the perfect products for your next home improvement project – from uPVC and aluminium windows to bifold doors and conservatories.

If you have any concerns about the security of your windows, want some advice on replacing your double glazing or want to browse our extensive range of home improvement products, get in touch with us today and receive a free, no obligation quote.

Delivering Customer Satisfaction

We strive to provide the best service for our customers. Here are some reviews from our happy customers.

Excellent

Amazing ..they were very clear on costs and delivered what I expected The work was immaculate and everything clean and tidy afterwards Thanks so much

Checkatrade Customer

June 2026

Fitting windows and french doors to a purpose built garden room

very professional, courteous and responsive. we were very pleased with the customer service and the finished product/ workmanship. we would use this company again and recommend to others

Checkatrade Customer

June 2026

Good service from initial start

Good service from initial contact through to install. Good communication from Paul the salesperson. Efficient and polite survey carried out by AJ. Great install team, got right on it from...

Checkatrade Customer

July 2026

Front and back door installation

We had both front and back doors replaced and we are very happy with the results. Communication was excellent and they were flexible around my work and family commitments. I...

Checkatrade Customer

July 2026

Professional Door Installation

Fitting of the French doors went smooth. The work was clean and tidy , and the guys were polite. Conversation was a bit poor would’ve been nice for them to...

Trustpilot Customer

July 2026

Reliable And Professional

We got our old windows and doors replaced by Unique Glazing co ltd Excellent job, Good quality product,Good and professional service, Fitters were very hard working and knew their job...

Trustpilot Customer

January 2026

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