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uPVC Casement Window Installations in Barnsley

When you’re looking for windows for your home, you want something that lasts. uPVC is an incredibly weather resistant material that only requires a wipe down for maintenance. And now, not only are uPVC casement windows weather resistant, but they also come in a wide variety of colours and woodgrain finishes to match the aesthetics of your home.

You won’t have to sacrifice beauty for structural integrity. All of our casement windows come with multi point locking mechanisms to improve the security of your home. When you replace old windows and rotting frames with these weather resistant and highly secure materials, you’ve made an investment for the next 25 years. Choose uPVC casement windows as the lowest maintenance and most cost effective option.

Weather Resistant

Reduce draughts, cold spots, and condensation when you choose our uPVC casement windows. All of our windows have been tested for heat retention, water tightness, and wind resistance and have achieved the highest ratings.

But one of the advantages of uPVC is that you don’t have to refinish, stain, or sand them like you would with timber windows. Enjoy the low maintenance windows. Improve the weatherproofing of your home when you choose new uPVC casement windows.

Heritage Options

You want to make sure that your windows don’t just look new: they look like they belong. We offer a number of heritage colours and woodgrain finishes to match the styles of your home. We also provide hardware in different styles and materials.

And if you’ve ever wondered about whether or not you can replace your diamond leaded glass, don’t worry anymore. We have Georgian bars and leaded square options. Keep your windows in the style to which you’re accustomed.

Energy Efficient

Don’t let chilly mornings make you get up on the wrong side of the bed. Instead, trust that these uPVC casement windows will keep you warm all year round. All of our products offer U-values lower than 1.2 W/m2K, even better than government standards.

When you order triple glazing for your uPVC casement windows, you improve the energy rating for your home. We offer up to 48mm glass thickness to reduce condensation, draughts and mould. Reduce your carbon footprint today.

High Security

Ask us about our accreditations and credentialed products. Most of our products come with PAS 24 and police testing scheme, Secured by Design, credentials. That way, you can be sure that your uPVC casement windows are held to the highest standards.

And you’ll be able to find all of our products include multi point locking systems. We offer shootbolts, locking handles, security hinges and hinge guards so that you don’t have to worry about the security of your home ever again. Trust us with your home.

double glazing barnsley

uPVC Casement Window Prices Barnsley & South Yorkshire

Why wait any longer? If you know that uPVC casement windows are the right choice for you, use our quoting engine to get a budget for your installation process. We offer competitive prices for uPVC casement windows, so you can trust you’ll get a good deal.

Check Out The Extra Options




No matter which window you choose, we like to give our customers the option of showing their personality. Choose from any of our RAL colours, and look at our woodgrain finishes for more traditional styles.

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




While D&I works with the public in installations of uPVC casement windows, we also supply to the trade. If you’re involved in trade in South Yorkshire and would like more information, please get in touch.

Frequently Asked Questions

Read through our frequently asked questions for more information. If what you need isn’t here, get in touch so that we can help you through the installation process. 

What’s the difference between uPVC and aluminium?

uPVC is a synthetic material that has been shown to be recyclable after use which is why we also offer uPVC flush casement windows, tilt & turn, and sliding sash windows. Aluminium frames are typically somewhat smaller than uPVC. Both are quite weatherproof and long lasting. D&I also installs and supplies aluminium casement windows and aluminium tilt & turn windows.

Where is D&I based?

Who are your suppliers for uPVC casement windows?


uPVC Casement Windows Brochure

Our brochures give you more detailed information, including uPVC casement window sash specifications, weather resistance and more. For all the technical nitty gritty, take a look.

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Get in Touch

It’s easier than ever to get in contact with our online contact form. For more information about uPVC casement windows, give us a call so that our competent team can help you with any questions you have.

Online Quote

Start Your Quote

You can start your quote for uPVC casement windows here to begin the process today. It’s free and painless so that you can window shop to your heart’s content.


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