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New Aluminium Casement Windows for Your Next Installation

Especially in residential settings, there is a growing awareness of the need to improve energy efficiency. Our team at D&I wants to advertise our windows in light of the fact that the government is planning to introduce new requirements on the thermal practicability of products. Aluminium Casement Windows are thought to be one of the home improvement industry’s most energy efficient models. Aluminium is also widely recognised as the material that is the most long lasting. When we use each material together, we may produce a thermal barrier that is superior to anything that has come before.

As residents of the UK, we are familiar with the variable nature of the weather. Condensation and chilly draughts may be intolerable, so get in contact with our staff so that we can help you choose the most appropriate materials for your next home repair. If you want your Sheffield home to remain warm and dry throughout the year, aluminium casement windows, either top hung or side hung, are the way to go.

In addition to providing items of the highest quality at rates that are quite reasonable, D&I is always delighted to respond to any questions or concerns that you may have.

Tight Corners

We are pleased to promote the cutting edge workmanship of Sheerline, which entails placing each screw within the mitre joints to produce angles that are exactly 90 degrees and free of any protrusions. Because of their adaptability, the aluminium casement windows that we provide are an excellent choice for renovating.

These corners are so unique that they generate what is known as a ‘beadless’ window, which makes it far more difficult for unauthorised individuals to break the window’s glass. With our aluminium casement windows, you’ll have a solution that is both secure and flawless.

Ultra Secure

One of the most important qualities of a decent window is how secure it is. Our staff makes it a point to guarantee that we have a multipoint locking system in stock so that we can provide your loved ones and your house with the most modern materials and the most secure locks.

These aluminium casement windows have been designed with more room inside the frame so that the locking mechanisms may be installed more quickly and easily. The window’s amazing sightlines will not be compromised in any way by the locks since they will never protrude from the frame. Instead, you will have aluminium casement windows installed in your Sheffield house that have a magnificent look as well as superior security.

Energy Efficient

As window installers, we are aware that goods with a single pane of glass are not only antiquated but also inefficient. Because of this, all of our products have double glazing as an option. Your total U-values may be as low as 1.4W/m2K with double glazed aluminium casement windows, which is a figure that is authorised by the government as meeting the requirement!

Investing in our upgraded aluminium casement windows is a great way to ensure that your house will remain dry and free from draughts. We are able to help ‘break’ the amount of heat loss and give you with the absolute best insulation that is currently available on the market thanks to polyamide thermal breaks.

Sleek Sightlines

Aluminium Casement Windows, which are known for their high thermal efficiency and minimal maintenance requirements, are among the finest materials now available. Because of its remarkable strength, the maker just has to employ a fraction of the material! Every homeowner in Sheffield has the opportunity to get the ultra modern style of their desires thanks to frames that are both smaller and more streamlined.

If you want to keep the classic look of your house, choose one of our woodgrain treatments. You will be able to achieve both the thermal efficiency and the visual attractiveness that you have always desired in this manner. Simply installing aluminium casement windows in your Sheffield home is all it takes to give it a facelift and make it more appealing to potential buyers.

double glazing barnsley

Aluminium Casement Window Prices in Sheffield

We can provide you with a long lasting solution for your Sheffield house in the form of aluminium casement windows that are both cost effective and have the potential to endure for many years to come.

What are you holding out for exactly? Learn more about our online quotation engine to get an estimate on the cost of new aluminium casement windows right now. We are more than delighted to assist you with any questions or concerns you may have about the installation process. Please allow our helpful staff to guide you through the process of installing the software.

Contact us using the online form or by phone if you need some assistance choosing the next option for your home improvement project, and we will be happy to discuss the possibility of putting aluminium casement windows in your house now!

Check Out The Extra Options




We offer aluminium casement windows in 8 different powder coatings. There are also dual colour options with a high gloss white exterior.

White Grain Casement Window

White Grain

Golden Oak Casement Window

English Oak

English Oak Casement Window

Irish Oak

Irish Oak Casement Window

Golden Oak

Classic Cream Casement Window

Classic Cream

Chartwell Green Casement Window

Chartwell Green

Agate Grey Casement Window

Agate Grey

Grey Aluminium Colour Casement Window

Grey Aluminium

Black Ash Casement Window

Black Ash

Anthracite Grained Casement Window

Anthracite Grained

Anthracite Smooth Casement Window

Anthracite Smooth

Nut Tree Casement Window

Nut Tree

Rosewood Casement Window


Trade Door


D&I supplies to trade in South Yorkshire. If you are a tradesperson looking for aluminium casement windows, get in contact with our friendly team so that we can talk today.

Frequently Asked Questions

We hope that our frequently asked questions help you resolve any problems you might have. If you have more questions, contact our team today through form or phone. 

Where does D&I install?

D&I works in South Yorkshire, from our base all the way up to Leeds. You can get in contact with us to see if we install aluminium casement windows in your area.

What’s the difference between aluminium and uPVC?

What is a mitre joint?


Aluminium Casement Windows Brochure

Our brochures offer more technical specifications, like sash size, glazing, U-values and more. Take a look at the aluminium casement windows specifications.

Contact Us

Get in Touch

If you need help deciding or have any questions, our friendly team would be more than happy to help. Contact us by online form or phone, so we can talk to you about installing aluminium casement windows today.

Online Quote

Start Your Quote

Now that you’ve read through the benefits use our quoting engine to get an idea of the project ahead. Try our quoting engine for a comprehensive quote of your aluminium casement windows.


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