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Sliding Sash Windows for Modern or Period Homes

Our selection of sliding sash windows is perfect for customers looking to replace their current, traditional timber frames. Our supplier, Bison, offers an incredible and cost effective timber style window which is a great way to upgrade your windows. Whether you are searching for an improved, energy efficient, heritage style joinery or improved safety – D&I will provide you with a home improvement project that you can be proud of.

Are you living in a conservation area in Sheffield? Or are you looking to upgrade to an Edwardian style home or even a fan vertical sliding window? Well, look no further! We have various colour and style options for you to choose from, and Bison partners with us to give you the authentic or modern style you are dreaming of.

Joinery Styles

With three different types of joinery for our sliding sash window range, Bison’s bespoke style corners on mechanical joints, invisible joints on a seamless weld or run thru sash horns. We have a home improvement solution for you and your property, whatever you decide.

We also offer additional hardware options with various styles, designs and finishes to choose from. We provide our valued customers with matching trims and accessories for our sliding sash window range with these selections. You can choose from any of our colours to create the perfect traditional or modern Sheffield home that you are looking for.

Security Options

Having a Sheffield home that is both secure and practical is essential. With D&I, you can choose PAS24 accredited sliding sash windows that have been tested against various intrusion situations. With laminated glass, you will have additional security measures from break ins and debris coming through the window.

We offer travel restrictors on the sashes to create smaller apertures for children and pets. This way, you never have to worry about leaving your sliding sash window open when you leave the room – we are aware that safety comes first, and as a top priority, we make sure of this in our sliding sash windows.

Energy Ratings

Every single one of our sliding sash windows is double glazed as standard. Our sliding sash windows are extremely energy efficient, with an energy rating of ‘A’! With our additional gaskets surrounding the window edge and brush pile seals between the sashes, you can ensure that any draughts and wind related weather will stay outside.

uPVC material is completely weatherproof and requires no maintenance or management (unlike traditional timber windows). All you need to do with your new sliding sash windows is wipe them down with a cloth to clean them thoroughly. Giving your continuous home upkeep can be hard, so choose the right materials at D&I, and we can advise you on the best sliding sash windows for your Sheffield property.


We want to make sure that we push forward to the future. By doing so, we use materials that are meant to withstand the test of time – making products that are built to last. 25-30 years, to be exact! However, what happens to our windows once they have come to their full use?

As uPVC material is durable, long lasting and recyclable, you can sustainably replace your windows. They will never go to waste. Recycling your sliding sash windows will improve the life of these products and, more so, help the planet go greener! Choose a material for your sliding sash window that will be around for centuries.

sliding sash window costs

uPVC Sliding Sash Window Prices Sheffield & South Yorkshire

What are you waiting for? If you want to upgrade your Sheffield windows to a sustainable, long lasting and durable solution, then get in touch with a member of our team. At D&I, we put your home first, and our online quoting engine will help you plan your budget for the future, providing you with a home improvement solution that will last. Contact a friendly member of our team today!

We look forward to hearing from you very soon.

Check Out The Extra Options




We offer 50 Bison colours from traditional to special foils to match the designs of your Edwardian or modern home. Not to mention: colour coded gaskets. Let us know today.

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


sliding sash window suppliers


If you’re a tradesperson in the South Yorkshire area, we can supply uPVC vertical sliding windows. Get in contact with our friendly team today.

Frequently Asked Questions

We hope you find the answers you need in our frequently asked questions, but if you don’t, contact our professional service team for any of your concerns. 

What’s the energy efficiency of these specific sliding sash windows?

Our sliding sash windows have a WER (Window Energy Rating) of ‘A’. You can find more when you look through our brochure.

You can improve energy efficiency by choosing triple glazing, or when you talk to us about our aluminium casement windows.

Where can I find if I can use uPVC in my renovation?

What if something happens to my window?


Sliding Sash Windows Brochure

If you need to know specific details of our uPVC sliding sash windows, look through our brochure. You’ll find sash sizing, weatherproofing, and glazing details.

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Get in Touch

Our Barnsley team believes in putting customers first, which is why when you call, you’ll get the benefit of calm, friendly service. Let us know about your installation needs.

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Now that you’ve read the benefits of sliding sash windows get your personalized quote. It’s free and painless so that you can plan for your future budget.


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