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Sliding Sash Windows for All Styles of Leeds Properties

We have many Leeds homeowners coming to us for their uPVC sliding sash windows as they are looking for a replacement for their timber framed sliding sash windows. They know that with our uPVC sliding sash windows, you get all the aesthetic qualities associated with these windows but none of the performance problems. We offer the great value Bison range, which is both beautiful to look at as well as giving your Leeds home numerous practical benefits. These include improved thermal efficiency, heritage style joinery and improved safety.

Our uPVC sliding sash windows are suitable for any style of property, so it doesn’t matter whether your Leeds home is heritage, traditional, or modern contemporary, our uPVC sliding sash windows will complement them. Our Bison range also comes in a wide range of colours, so you can express your own personal taste.

Joinery Styles

One of the most popular reasons for Leeds homeowners coming to D&I for their uPVC sliding sash windows is our different types of joinery. We offer three: un through sash horns, invisible joints on a seamless weld, and Bison’s bespoke style corners on mechanical joints. This means whatever the style for your Leeds home, you are sure to find a uPVC sliding sash window that will answer your requirements. 

It’s not just different styles of joinery though, here at D&I we also offer other customisable options such as hardware, colour, styles, designs and finishes. It is this opportunity for our Leeds clients to put their own personal stamp on their uPVC sliding sash windows that has proved so popular. Get in touch with our friendly team of experts today to start your uPVC sliding sash window journey.

Increased Security

Having spoken to our Leeds customers we know that security is very important to them, so we have made sure that the uPVC sliding sash windows we offer give your home increased security. Our windows have passed PAS24 accreditation testing for various intrusion scenarios. Install our uPVC sliding sash windows and will get menace of mind as standard, thanks to our laminated glass.

To make smaller apertures for children and pets, we offer travel restrictors on the sashes. You won’t ever have to worry about leaving your sliding sash window open when you leave the room due to the fact that we put safety first when designing our sliding sash windows.

Improved Thermal Efficiency

Saving money on energy bills is a priority for everyone. All of our uPVC windows come with double glazing as standard, this gives our windows an ‘A’ rating when it comes to thermal efficiency. This translates into you saving money on your energy bills as you will need to turn on the central heating less frequently. Our uPVC sliding sash windows are also weatherproof, so the wind and rain will stay outside in Leeds due to our additional gaskets surrounding the window edge and brush pile seals between the sashes.

Unlike traditional timber framed sliding sash windows, our uPVC versions are completely weatherproof and do not require tiresome and expensive maintenance. To look after your Leeds’ uPVC sliding sash windows, simply wipe them down with a warm, damp cloth. To learn more about the benefits of our windows, please get in touch with our team of friendly experts today.


We all want o look after the planet, so we have made sure that the uPVC sliding sash windows we offer last a lifetime. Experience has taught us they will last up to 25-30 years. However, what makes our uPVC sliding sash windows so sustainable is what happens once their lifetime is over.

You can replace your windows sustainably because uPVC is strong, resilient, and recyclable. They will never be wasted. Recycling your sliding sash windows will lengthen their useful lives and, more importantly, contribute to the greening of the planet!

sliding sash window costs

uPVC Sliding Sash Window Prices Leeds & South Yorkshire

What are you waiting for? Get in touch with a member of our team if you want to replace your Leeds windows with a sustainable, long lasting, and reliable solution. D&I prioritises your home, and our online quoting tool will assist you in making future financial plans while giving you a long-lasting solution for home improvement. Make contact with a helpful employee right away!

Your installation of a brand new sliding sash window can be tailored to meet your specific requirements. You have the option of selecting the number of sashes, the type of glazing, the glass thickness, and the colour finish. You can get assistance selecting the door that is most suitable for your needs by using our online quoting engine. No matter what it is that you are looking for, we strongly encourage you to make use of our quoting engine so that you can obtain an accurate price right from the start and determine the next steps for your individual journey.

We look forward to speaking with you 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 Leeds 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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