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Why Choose Dempsey Dyer

Here at Dempsey Dyer, we’ve been leading the way in the window and door market since 1977. We manufacture high quality windows and doors for you and your next project.

For over 40 years we’ve specialised in the trade and commercial sector, supplying a wide range of products including timber, uPVC and composite of the highest quality, all offered with our friendly, expert customer service and sales team on-hand to support you.

If your current supplier is letting you, Dempsey Dyer is the perfect option. No matter which materials, products and configurations you’re looking for, we can help. Our reputation speaks for itself, as a result of over 45 years not only in the industry but at its forefront.

There are so many reasons why you should choose us, but we’ve managed to narrow it down to a select few. Take a look at some of the reasons why you should make the switch to our market-leading products.

Benefits of Working with Us

Fast Lead Times

Our products are available with a quick turnaround time so you and your team can get the job done right. Keep your customers happy with exceptional windows and doors with a fast turnaround that’s sure to impress along with the finished installation itself.

Vast Product Range

We’re proud to offer a wide range of windows, doors and conservatories created bespoke for you, according to your precise specifications. Whether you’re looking for timber, uPVC or composite, our products lead the way in performance, style and more!

Leading Profiles

Our windows and doors are available in a wide range of popular, reliable and high performance systems. Deceuninck, Reynaers, Solidor and Accoya have stood tall among the other options available, and that’s why we’ve chosen them - we only work with the very best to bring it to you.

Innovative Design Tools

You can create your unique, bespoke window designs right here on our website. Choose us for specialist customisation tools and platforms that allow you to craft the shape, size, style, colour, glazing, finish and much more - and get a tailored quote at the end.

Quality Assurance

As part of our commitment to offering lead products that stand the test of time, we carry out comprehensive quality control on our products, so you can be sure what we manufacture will stand the test of time and meet your and your customers’ expectations every time.

Competitive Costs

The right products at the right price. Our windows, doors and conservatories are competitively costed to make the highest quality home improvements as accessible as possible. Our steady prices give you the stability that you need in these uncertain times.

Our Product Range

Take a look at our wide range of windows, doors and more to find the right fit for your next project. Whether it’s timber windows, uPVC conservatories or any configuration you need, you can discover more on our website and then design your profile.

Timber Windows

Timber Look Windows

uPVC Windows

Timber Doors

uPVC Doors Composite Doors

Lantern Roofs

Timber Conservatories

uPVC Conservatories

Find out more about our online designer tool and enquire today about the many ways in which this will transform the way your business operates. With Dempsey Dyer by your side, you’re making the right choice for you and your next project. Talk to us today.

Read Our Reviews

You don’t just have to take our word for it. Here is what some of our many satisfied customers have said about our products and service over the last 40 years or more.

We’ve had our extremely solid front door for nearly 10 years now with no cause for complaint whatsoever… Highly recommended.

Alistair Smith

Fantastic products... I have used them for years for timber windows and doors, I wouldn't look anywhere else.

Chris Vincent

Great service, put me in touch with one of their reputable installers and couldn’t ask for anymore.

Brian Dowson

Convinced? We thought so. Get in touch with the team today to start your journey as part of the leading window and door manufacturing family in the UK for the best products and service.

Choose Dempsey Dyer Today

For the finest windows and doors for your next project, choose Dempsey Dyer. The best profiles, expertly manufactured at competitive prices. What’s not to like?

We believe in establishing, maintaining and growing long-term partnerships. It’s how we’ve been able to grow and thrive since 1977. We partnered with market-leaders Deceuninck in 1984 and MACO in 1994. Could this year be when we partner with you? We hope so!

Get in touch with our team today to bring our products to your customers. Enjoy our quality assurance, browse our vast product range and use our innovative online designer. You’ll have all the tools you need to succeed at your disposal with Dempsey Dyer by your side.

To find out more about working with the industry specialists here at Dempsey Dyer, get in touch with us today. A member of our friendly team will be in touch with you as soon as possible.

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Installers and other businesses can only work effectively if they have a reliable trade supply service – offering the highest performing products. Luckily, here at Dempsey Dyer we only supply the latest options from market leaders. This guarantees quality, performance and durability – regardless of the product choice.


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