Create your dream door today with our Door Designer. We offer strong and durable composite doors

Aluminium Casement Windows for Your Leeds Home

Leeds residents, like the rest of the UK, are looking to improve their home’s thermal efficiency, and our Aluminium Casement Windows are an excellent way to achieve this. The government is planning a new set of regulations regarding the thermal efficiency of replacement windows, so you need to make sure that your Aluminium Casement Windows will meet them. D&I is proud to announce that Aluminium Casement Windows are one of the most thermally efficient products on the market, partly down to the qualities of the aluminium we use. This material is long-lasting, durable and robust; combine that with our double glazing, and you have an outstanding thermally efficient window.

Leeds weather is renowned for being variable and harsh, so you need Aluminium Casement Windows that can withstand all the problems that the weather brings. Condensation and draughts are just some of the problems that can affect your home and cause dampened heat loss. However, if you install our Aluminium Casement Windows, your home will stay dry and warm throughout the year. Our Aluminium Casement Windows can be either top hung or side hung.

Tight Corners

D&I stock the beautifully designed Sheerline collection of aluminium casement windows, a company whose windows are recognised to be some of the best products you can buy on the market today. Their manufacturing process places each screw inside the mitre joints to produce angles that are exactly 90 degrees and free of any protrusions. It is this process that makes them some of the best aluminium casement windows on the market.

The corners on their aluminium casement windows, create a beadless” window, which makes it a lot more difficult for intruders to break into your Leeds home. When you install these windows into your home, you are getting s windows that will make your home safer.

Very Secure

One of the reasons Leeds residents come to us for their aluminium casement windows is because of the security levels they give your home. All of our aluminium casement windows are equipped with highly secure multipoint locking systems, which ensure that your home is as safe as it can be.

Our aluminium casement windows have been manufactured to have extra space within their frames so the locking systems can be installed in a more aesthetically pleasing manner. This design feature means that the tremendous sight lines you get from our aluminium casement windows are not spoilt by our locks. So when you install them in your Leeds home, you are getting a beautiful window that keeps your family safe and secure.

Energy Efficient

Gone are the days when people installed single glazing as it is now recognised as being highly inefficient when it comes to keeping your Leeds home warm. Our double glazed aluminium casement windows give you U-values that can be as low as 1.4W/m2K, a value that is in line with government standards. 

When you install our windows into your home, you are giving your home a thermal efficiency that you can be proud of.

Sleek Sightlines

Our aluminium casement windows give your Leeds home an instant aesthetic lift as not only do they keep your home warm and dry; they look beautiful too. Thanks to the way we manufacture them and the qualities of aluminium, your windows will have thinner profiles and larger glazing areas. 

The result is a modern window that will complement any style of home, traditional, period or contemporary; your home will benefit from installing our aluminium casement windows.

double glazing barnsley

Aluminium Casement Window Prices in Leeds

Aluminium is considered a premium material within the industry as a result of its resistance to the elements, its efficiency in terms of thermal conductivity, and its incredible strength. We promote options that have lower sightlines and that are fully recyclable. We can provide you with a long lasting solution for your Harrogate home in the form of aluminium casement windows that are both cost effective and have the potential to last for many years to come.

What are you holding out for exactly? Learn more about our online quoting engine to get an estimate on the cost of new aluminium casement windows right away. 

Contact us through the online form or by phone if you need some assistance choosing the next solution for your home improvement project, and we will be happy to discuss the possibility of installing aluminium casement windows in your home today!

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 for your aluminium casement windows.


Privacy Policy | Cookie Policy | © 2024 D & I Home Improvements

Start Your Quote

Call Us

Email Us