Homeowners Guide Archives - Dempsey Dyer
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UPVC, aluminium and timber manufacturers

Operating since 1977

Full range of Deceuninck, Reynaers and Accoya systems

Manufactured in the UK

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Timber Bifold Doors or Aluminium?

Since modern housing design began back in the late 1960s, homeowners have always been looking for a way to connect the outside of their properties to the inside. Whether that be with a balcony that overlooks a busy city street or a garden that is home to plenty of social gatherings over the summer months. Whatever it may be the homeowner has on the outside, having a large opening out back really helps with providing the illusion of more space within the home and giving the home lots of airflow. The sliding door was previously the best choice, and for many people, that still is the case. The sliding door takes up very little extra space when it’s open and gives the household wonderful views of the outside when it is closed. 

However, for those with the space, the modern bifold door has started to take the market by storm as the preferred option. Whilst the bifold door may not provide the completely clear view that the sliding door does when it is closed, the sheer breadth of the opening is unmatched. Essentially acting like opening the entire wall, the bifold door is just superb as a modern innovation. 

Here at Dempsey Dyer, we provide modern bifold doors in both aluminium and timber variants, each with its own unique benefits and stylistic appeal. Both are excellent choices, but it depends on what the homeowner is after when choosing between them.

What is a Bifold Door

In truth, the folding door has been a part of homes since ancient times. Their first recorded use seems to date back to the ancient Romans in various building types and applications. The concertina design (as it is otherwise known) gives the building a difficult entranceway that can take up a lot of space and provide a large opening, likely perfect for merchants and the like. 

The bifold door fell out of fashion somewhat over the centuries until very recently, when the double glazed concertina door came back into style. Before this innovation, bifold doors acted as folding walls of a sort, but their lack of structural integrity compared with an actual wall left a lot to be desired. However, when compared to a window, the structure is not massively affected, especially with a back door into the garden. 

Bifold doors operate on a rail system on the top and bottom with hinges between each panel. The door has one ‘master door’ at the end on either side or in the middle that can open independently of the others. The rest can then be folded into starting from the master door across the length of the installation. If the master door is in the middle, then the door opens both ways towards the edges.

The design has recently taken the British home design market by storm due to its modern finish and superior ability to provide the illusion of space over the sliding door. Here at Dempsey Dyer, we provide bi-fold doors to trade customers and homeowners in timber or aluminium. 


The timber bifold door combines contemporary design with traditional materials. With the advent of modern resin and varnishing, timber no longer degrades in the weather in the same way that it used to. There was a time when purchasing a new timber installation came with a caveat of constant maintenance to keep it from rotting in the humid British weather. Luckily this is no longer the case. You can enjoy the thermal insulating properties of timber as a material with no concern of degradation or deterioration over the years!

We provide three timber species for our bifold doors:

  • Accoya
  • Sapele
  • European Oak

Accoya is the high-performance species that we provide and is made from sustainably sourced softwood. With class 1 durability, you’ll struggle to find better on the market for longevity alone.

Sapele is a common hardwood used for both windows and bifold doors with a class 3 durability classification qualifying it as moderately durable. Don’t let the term fool you, though. This wood species is still able to achieve many years of service in the home.

Our final option is the European Oak that we source through an FSC (Forest Stewardship Council). European Oak has a class 2 durability classification and is excellent for the homeowner looking for an authentic and sustainable bifold door. 


Aluminium bifold doors are likely the reason that the bifold door has really taken off in the last ten years. With slim frames, occupants can enjoy exceptional views of the garden whilst also having the option of opening up the door and potentially providing an opening as large as the wall. 

Our aluminium doors are able to circumnavigate the issues that once came with aluminium thermal efficiency. We use modern thermal break technology to stop aluminium elements from coming into contact with each other. In doing this, we prevent global cooling of the whole installation and affect your home’s thermal efficiency. With aluminium bifold doors, you can enjoy modern levels of comfort with modern design styles too.

If you’re interested in a bifold door from Dempsey Dyer, whether you be a trade or homeowner, we provide quick quotes right here on our website with our online pricing tool! You can also contact us directly through our contact form with any specific questions you may have.

The Variety of Timber Casement Windows from Dempsey Dyer

Over the years, the casement window has become the standard window fixture, particularly in the last 20 years since uPVC took over the market. uPVC entered the market due to the lack of longevity that timber provided to homes back in the 1970s through to the 1990s. However, since the early 2000s, modern design innovations and technologies have allowed resins to be developed that allow for timber installations to make a return to modern UK homes without having to worry about rotting, warping or discolouration. As such, here at Dempsey Dyer, we have developed a range of timber casement windows that provide the home with the best in thermal efficiency, security and weather protection. uPVC still remains an excellent option for homeowners, but timber has finally made its full comeback to wonderful effect. 

Today we wanted to focus on the three variants of our timber casement windows that we provide to trade installers and to homeowners: Flush Sash, Mock Sash and Stormproof Casement. Each window has something slightly different to offer the UK home. All of them have excellent properties in retaining warmth in the home, providing exceptional and modern levels of security and protection from weather damage. 

Flush Sash

Our timber flush sash windows have the professional touch that homeowners of heritage properties are looking for. Since uPVC entered the market, we have seen modern homes built with uPVC double glazing and homes built in the 1970s and later having their single glazed windows upgraded to uPVC. However, there has been a spot missing for the heritage home that has no interest in providing the home with modern uPVC finishes. Fortunately, modern timber casement windows have arrived to fill this gap in the market! 

Flush sash windows are stylish and discreet due to their flush design against the wall. They provide the traditional home with a modern upgrade that holds true to their classical style. They also provide the modern home with a touch of grace that may be missing if they had their uPVC windows installed sometime ago!

All of our timber casement windows provide homes with exceptional thermal efficiency. In these modern times when energy prices are skyrocketing with no sign of slowing down, it has never been more important to ensure that the energy we are using is used to its best effect so that we’re not wasting our money on leaking heat! 

Mock Sash

The mock sash timber casement window provides the same visual effect as the flush sash casement window but uses modern opening and closing methods. From the outside, you wouldn’t know that this window actually opens and closes like a modern casement window as it looks identical to traditional timber sash styles. However, the homeowner can enjoy modern window design from the inside. If you’re looking to give your home the contemporary upgrade without sacrificing on the outward appearance of the home, then look no further than the mock sash timber casement window! 

Like with all of our timber casement windows, the mock sash provides exceptional safety using our top of the line high security locking system. With a modern timber casement window from Dempsey Dyer, you can ensure that your home is protected from potential intruders. It used to be that timber windows were inadequate security measures to the ease with which intruders could break through them after they had rotted or degraded through the weather over several years. However, due to the modern application of resins, we can assure you that your timber casement window will not degrade through the weather at all! 

Stormproof Casement

Our stormproof timber casement range provides the home with the absolute best in weather protection. These windows come in a vast range of styles, including the two mentioned previously, so that you can customise your windows to your exact specifications. Whether you’re looking to provide the home with a traditional sash style or something more modern, our stormproof timber casement windows will give your home all the weather protection it needs without any signs of degradation.

Modern Timber Casement Windows from Dempsey Dyer

Our timber casement windows are available for trade customers and homeowners alike. Whether your client is looking for that modern upgrade to their heritage home or you yourself are looking to give your home a touch of the classics, then you’ll find what you need with Dempsey Dyer. All of our windows provide the best in thermal efficiency, security and weather protection, and all are customisable with a variety of timber species so that you can get the exact effect with the exact colour you’re looking for.

If you’re interested, please use our free online quoting engine today to get a quick price for your project! You can also contact us directly if you have any questions or call us on 01977 649641!

The Different Front Doors

Modern homeowners have never had more choice of materials and styles for their installations than they have today. Especially with the advent of modern technology in manufacturing, homeowners can now receive exceptional quality across the board no matter the material or style they choose. As a result, it is important as an installer that you are aware of the differences between the various products we sell here at Dempsey Dyer. If a customer asks, it is good to be well informed and aware of what each type of door provides for the home in contrast to the others. Homeowners will not be as well informed as you on the variety of doors they can choose from, so they’ll trust you to provide them with a thought out recommendation. Today, we wanted to break down the different doors that we provide so that you can be fully informed about the products that we sell.

Timber Doors

Timber doors have come a long way in the centuries they’ve been used across the UK. Long gone are the days of weather degradation and rotting front doors. Nowadays, modern coatings and manufacturing processes have provided timber front doors with the ability to withstand weeks of poor weather conditions without showing any sign of the degradation we might have come to expect some years ago. We use three different species of wood for our timber front doors. The Accoya range is a high performance, modified timber made from sustainably sourced softwood. It has ‘Class 1’ durability, which is the highest level of durability for timber. Our Accoya products are premium when it comes to timber installations. We also provide European Oak products, which would be one tier down. European Oak has a ‘Class 2’ durability rating and has the lightest colour of the three species we provide. We source this particular species through the Forest Stewardship Council to ensure that we are sourcing this species sustainably. Finally, the next tier down is the Sapele range, which has the darkest colour of the three species and has a ‘Class 3’ durability classification, making it moderately durable. This species comes from West Africa and Cameroon and is an attractive choice regardless of having the lowest durability rating. Timber doors are perfect for the homeowner who is looking to add a nostalgic and timeless look to the front of their home. Authenticity is a key selling point and an excellent reason for customers to purchase timber products.

uPVC Doors

Next up is our range of uPVC front doors. uPVC is one of the three most widely used synthetic materials on the planet because of its relatively low production cost and its exceptionally high durability, low maintenance and thermal efficiency. uPVC is also wonderfully customisable and can easily be given a woodgrain finish to look like a timber door. uPVC doors are perfect for the homeowner looking to make an affordable addition to their home that still provides excellent performance across the board. uPVC front doors are able to last anywhere between 20-30 years and will provide consistent protection from the outdoors throughout that entire life span. uPVC requires very little maintenance to remain in tip-top condition so your customers can rest easy with a ‘fit and forget’ front door. 

Aluminium Doors

Aluminium front doors provide the home with a truly modern entranceway that is particularly on-trend at the moment in home design circuits. Critall like design made to replicate the industrial art-deco look has shown an explosion in the demand for aluminium and aluminium looking products. Homeowners looking to give their home something new that makes a statement to passersby and visitors alike will absolutely love an aluminium front door. Aluminium also no longer has the issues of thermal efficiency that it once did. With the use of modern thermal break technology, the aluminium elements of the door are separated from each other so that heat does not pass easily from the inside to the outside. As a result, the aluminium door is just as thermally efficient as a modern timber door or a uPVC one. 

Composite Doors

Finally, we also provide composite doors, a completely modern innovation that combines many of the materials mentioned earlier into one outstanding product. We provide two types of composite doors. The first is the foam-filled variant. Foam-filled composite doors are the less strong of the two types, the other being the timber core variant. However, foam-filled composite doors are known to be more thermally efficient than the timber core.

On the other hand, Timber core is much stronger and able to withstand a lot more punishment. As a result, it is really up to the customer which element they would like to prioritise over the other. Composite doors are just as customisable as uPVC, meaning that they can be given a woodgrain finish should the customer wish it. 

So there you have it, our quick guide to the kinds of front doors we provide here at Dempsey Dyer! Our front doors all come with customisable hardware that is all of the highest quality. If you’re interested in any of the front door products for your customers, why not get a quote from us today with our easy to use online pricing tool? Furthermore, if you have any specific questions for us, please feel free to contact us using our online contact form or call us on 01977 649641.

We look forward to hearing from you!

Signs You Need to Replace Timber Windows and Doors

What are the signs that you need to replace timber windows and doors? If you have wooden windows and doors in your home, then they might already be sending you signals that they might need changing. While these windows and doors have a fantastic, classic look, they do have plenty of drawbacks. Your timber windows and doors will need a lot of regular maintenance and upkeep, and even then they might need repairs after just a few years.

So, what are the signs you’re looking for? One of them could be whether your living space feels cold and uncomfortable, as your wooden windows and doors may be causing this. Another sign might be if condensation is building up on the window, and this could mean that the timber is starting to wear down. And, if your window frames are beginning to crack, twist or even discolour, then their age might be getting the best of them.

At Dempsey Dyer, we can help you replace timber windows and doors if you see any of the signs. We can offer high-quality timber windows for commercial clients, and we can help homeowners get new windows for their property as well. Our timber windows and doors are market-leading, and we use resilient Accoya wood for a high-quality finish. If you’re interested in replacing timber windows and doors, get in touch with us today!

Signs to Replace Timber Windows and Doors

Colder Living Space

If your living space is feeling cold or uncomfortable, then it could be a sign that your timber windows and doors are beginning to struggle. If you have older windows in your property, then they might have single-glazed glass which doesn’t offer a lot of insulation. And, while timber is a natural insulator, the material can begin to wear down over time. Because of this, gaps can emerge within the window and door frames that allow cold air and draughts to rush into your home.

As a result, you should check your timber windows and doors if your home feels cold without you relying on your central heating. Your window might have cracks in the wood, or the whole frame may have warped out of shape. Not only that, the single glazed glass may be struggling, and you could need replacement double glazing as well. Replacing your timber windows and doors, though, ensure that you can make your home warmer and more thermally efficient.

Condensed Panes

Another sign you may need to replace timber windows and doors is condensation. Condensation is a mist that builds up on the glass panels in your windows and doors when hot and cold air clash. Most glass units, including double glazed units, are designed to keep the hot air inside your home and the cold air outside it from colliding. So, when they do, it could be a sign that your timber windows and doors are beginning to wear down.

You should check your timber windows and doors for whether there are any gaps in the sealant. If the sealant in your glass panels has broken, then you’ll need to replace the glazing in your window or door at least. And, while condensation can build up on the inside and outside of your glazing, the best way to stop it is by getting new windows or doors altogether. When you do that, you can enjoy a more durable, weather-resistant window or door that doesn’t have issues with condensation.

Weather Damage

Over time, the signs you need to replace timber windows and doors only get bigger. And, after a while, the signs become too obvious to ignore. One of the main signs is weather damage, which is usually an accumulation of multiple years being exposed to poor weather conditions. Wooden windows and doors struggle in wind and rain, which can cause the timber in your profiles to crack, twist, and warp out of shape.

You should regularly check your timber windows and doors for weather damage, including cracks and gaps in the frame. And, if the profiles have warped out of shape, then you should look to reseal your windows or doors. However, you could replace your timber windows and doors with brand-new designs that have more resistant profiles. With Dempsey Dyer, you could pick uPVC, aluminium and even Accoya timber windows and doors that are much more comfortable in bad conditions.

Replace Timber Windows and Doors with Dempsey Dyer

Spot the signs you need to replace timber windows and doors in your home today with Dempsey Dyer. You can explore our site to see our full range of timber windows and doors, or you can contact our friendly team online. And, if you’re a commercial customer, then start your trade quote to help your customers find the best timber windows and doors to replace their old ones.

The History of Timber Windows and Doors

What is the history of timber windows and doors? While you might hear people talking about wooden windows and doors as being a ‘traditional’ option, you might not know why wooden windows and doors are the standard. It’s because, over the years, wood has been a reliable material for builders, architects and designers. Not only that, wood has been around and in use for several thousands of years, meaning the history of your windows goes much further back than you may know.

In this article, we’ll teach you about the history of timber windows and doors, and how that history has affected the modern designs you see today. Not only that, you’ll see the designs in a whole new light, and you’ll understand why features of timber windows and doors are the way they are. From there, we’ll see how modern wooden windows and doors are inspired by that history, but go in a new direction. As a result, you’ll get the full picture on timber windows and doors.

With Dempsey Dyer, you can get timber windows and doors that combine tradition and history with innovation and quality. Our timber windows and doors bring period style to your business’s product range, and they can also offer the high-end performance your customers need. Additionally, we can help homeowners find timber windows and doors for their properties, as well. If you’re interested, contact us today or start your trade quote.

History of Timber Windows and Doors

We know that the history of timber windows and doors stretch back thousands of years. In fact, the earliest windows initially appeared in Alexandria, in Egypt at the time of the Roman Empire, around 100AD. However, that’s only when the wooden window had glass added to it, which is when it became a design that we would recognise today. However, the glass that was used was thick and opaque, meaning you couldn’t see very well out of them!

Wooden windows and doors are first defined in the 13th Century, and originates from the Old Norse phrase for wind-eye. Further on, timber sash windows were developed in the Netherlands in the late 17th Century, and these frames were constructed in a similar way than they are today. Beyond that, construction of timber windows and doors evolved with different varieties of wood being uses. Oak was the initial choice, but later mahogany and imported softwoods became more popular.

As a result, the story of timber windows and doors is thousands of years old, and the story has been changed by people from all over the world. Features like sash windows, sash pulleys, box frames and cornices have come and gone, and some of them have stood the test of time. So, if you have old wooden windows and doors in your home, you now may be able to see more of where they came from and how they came to be. Now, though, we’ll see where modern timber windows and doors are today.

Modern Timber Windows and Doors

Modern timber windows and doors take the best of old designs and marry them with the technology of new windows. Inspired by modern uPVC and aluminium windows as much as timber designs, new wooden windows and doors are more durable and more efficient. As a result, you can benefit from improved thermal performance inside your home with new wooden windows and doors. You’ll get advanced double glazing and more resistant profiles that create better insulation for your property.

Another benefit of modern timber windows and doors includes the range of designs you can now choose. Nowadays, companies all over the UK are coming up with unique ways to bring classic timber windows into the modern day for your home. You can find timber sash windows with traditional styles and features, but combined with modern features like advanced multi-point locking systems. Because of this, modern timber windows and doors are as secure and strong as they are stylish.

Even the type of wood in timber windows and doors is still evolving today. You can now get engineered timber profiles, meaning that the timber has been cleverly modified to make it more weather-resistant, meaning wind and rain won’t cause the same level of damage. As a result, you don’t have to regularly maintain modern timber windows and doors like people have had to do throughout history. Because of this, you can enjoy them without much less effort.

Timber Windows and Doors Prices

At Dempsey Dyer, we understand the history of timber windows and doors. Because of this, we know how to create a stunning set of modern timber windows and doors that still look timeless and storied. Our designs use a wide range of wood types, including engineered Accoya timber, and we fit them with both old features like detailed handles and new ones like advanced double and triple glazing. For more information on getting them for your home or your business, contact us or start your trade quote!


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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