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

Double Glazing Specialists in Barnsley

When you hire a contractor, you want to make sure it’s someone you can trust. Someone with high-quality service. That’s why you can always get in touch with our business owners. Though we started as a small installation and fabrication business, we’ve expanded our products while still keeping that quality service mentality. We make it a priority to speak with homeowners and understand their needs.

We’re a one-stop shop. At D&I, you can find just about every market-leading double glazing product, including windows, doors, garden rooms and conservatory roofs. Not to mention some of our special features like Solidor composite doors or innovative garden rooms. Read on for more reasons why you should install with D&I Home Improvements.

Est. 2009

We’ve been in the business a while now. And while we started operations in 2009, we’ve decades of previous experience between us. Now, having more than 10 years of experience in the field has taught us everything we need to know as a business. We offer 10-year warranties on all of our double-glazed windows and doors for your peace of mind, and we always offer quality service.

50 Years

We know what you need and when you need it. We’ve seen the market trends and proven customer satisfaction. From improved materials to greater energy efficiency, we try to follow all of the newest developments keeping up to date with both government standards and your needs. That’s why we have accreditations with FENSA, the Federation of Master Builders and Which? Trusted Trader.

4.9/5 Rated

When it comes to our reputation for top quality service, don’t just take our word for it. Check out our reviews on Google and more. Almost everyone agrees we are a fast, reliable, and friendly installer. We’ll get back to you quickly and offer any aftercare that you need. At D&I, we believe strongly in making sure you don’t just get a double glazing installation, you get a quality service as well.

better alt text


Start your double glazing project with us by requesting a free online quote today! If you already know the product or service you need, use our quoting engine to help you decide on designs and specifications. It’s easy, it’s free, and it’s incredibly helpful to your yearly budget plans. If you ever need more information, you can always give our Barnsley team a call, and they’ll be happy to help offer you quality service.

Weather Resistant Products

D&I uses the latest materials for all of our windows, doors, decking and more. We know just how hard it is to deal with moisture and weathering. When you look through our products, you’ll see just how much we believe in offering renovations that last for years to come. That way, your investment is safe. Ask us more when you contact us so that we can prove our quality service.

Eco-friendly Installation

Talk to us more about our investment in eco friendly products and environmentally friendly installations. In addition to quality service, we offer products made of recyclable materials, like aluminium windows. And all of our materials are long lasting, so you won’t contribute to waste. As recycling processes improve, you won’t need to worry about the end destination of your product.

Top Quality Customer Service

When you get in touch with our Barnsley team today, you’ll see that we care about more than just business. We want to make sure you’re well looked after. It’s easy to get brushed off. But troubleshooting is part of our customer service care, so won’t ever need to wait to get in touch. D&I makes sure that you get a quality double glazing  product and quality service every time.

Our Products


Our quality service isn’t just for homeowners. At D&I, we have great relationships with tradespeople in Yorkshire. If you’re a tradesperson looking for a fabricator and supplier, take a look at our dedicated page and give us a call. Our Barnsley team will offer you quality service without a problem.

Our Reviews

Look through our reviews to get a better sense of our business ethic. You’ll see that most of our customers agree that we are an accommodating and friendly service with competitive prices and great workmanship.

Read More


Wanted some composite doors and decided to go with this company excellent service from start to finish great job recommend

Michael Day - 27/09/23

Hi Just had a door fitted, great experience .no fuss, no mess and brilliant job by Daniel and Ritch. We would highly recommend .Many thanks D and I.

Dennis Laycock - 20/07/23

Very happy with their products and service. Apart from a very slight glitch on the order, this was very quickly sorted. Cannot thank Danny who did the fitting, he did a supurb job with real attention to detail. Both Dave & Ian I met and found them approachable and amenable and only to happy to ensure satisfaction all round. Would recommend anytime.

Morton C. - 15/11/22

I am very impressed with d&i windows. From start to finish they have been excellent. Kelly was very friendly when she came to quote, the surveyor was very friendly and knowledgeable and the fitter was very good too. After shopping around, both the wait time and price was the best in Barnsley. Really happy we chose them. Will definitely recommend

Laura Moody - 10/10/22

Had a large garden room built and decking area by D&I ...can honestly say David and Ian have been nothing but accommodating to our needs. Been absolutely fabulous with us in every way. Also a big Thankyou to the fitters Jason, Brandon, & Terry for weeks and weeks of hard work.

Terry Vaile - 01/09/21

Gave D&I a call after struggling to get a ramp done for my mother in law who has been diagnosed with motor neurone disease and hasn’t been able to leave the house for a year. They immediately got on with sorting it and it wasn’t an easy process but Dave never stopped planning it and came up with a solution, They had black composite decking with a ramp and it looks absolutely beautiful ,cannot thank you all enough for everything you’ve done an absolute brilliant service

Lucie Evans - 03/05/21

Anyone looking for new Conservatory with a light weight tiled roof look no further. These guys do a excellent job, so organised all the trades followed each other, even Covid 19 only caused slight delay D & I were back on the job as soon as safety allowed. I doubt you will get a better price anywhere else either.

Jillian Butler - 05/11/21

Would definitely recommend. Came round to offer quote quickly. No hard sell (didn't spend hours trying to wear me down like other companies). Fair and competitive price. Very helpful in organising a fairly fast turnaround to fit in with our other building work. Guys that came to fit windows did a really neat job, took care to put down dust sheets and also tidied up after themselves. Windows look great. Certificate arrived within a couple of weeks as promised. Thanks D&I!

Sue McGlone - 23/10/2017

Friendly, helpful and no pressure. Recommended.

Simon Gillard - 27/10/2020

Latest News

Sliding Doors Vs Bifold Doors

12 June 2024

Sliding Doors Vs Bifold Doors

Contact Us

Get in Touch

Talk to our Barnsley team about any of our products or our installation process. Our friendly crew is ready to hear about all of your needs. Let us take care of you by offering top quality service.

Online Quote

Start Your Quote

Speaking of quality service, use our quoting engine to find most of our product prices and designs. It’s a fast and easy tool to help you start your installation. For any of our bespoke products, contact us for your free quote.


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

Start Your Quote

Call Us

Email Us