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At Central Window Systems, we supply a variety of uPVC and aluminium flush casement windows as well as uPVC flush doors. But what are flush windows? What are flush doors? What makes them unique compared to regular casements? We answer these questions and more in our ultimate guide to flush windows and doors. Discover all you need to know about our flush range below, or start your free no-obligation quote now.

What Are Flush Windows and Doors?

Flush windows and doors have been a popular choice for homeowners across the country for decades and can be a timeless choice that suits new or old builds. Unlike your typical casement windows or French doors, which have their sashes raised against the profile, flush windows and flush doors have sleek sashes that fit flat within the profile without protruding out.

Flush windows are an excellent choice for those looking to maintain a period aesthetic while improving the thermal performance, weatherproofing, and security of a traditional home. This is because timber windows were typically designed with flush fitting sashes, which can be seen in many late Georgian, Victorian, and Edwardian properties across the UK. So, unlike a usual casement window, flush windows can look visually closer to classic window designs.

This period style advantage increases further thanks to the wide range of colours and woodgrains that we have available for our uPVC flush windows. Plus, our flush doors are capable of matching with our flush windows, letting any homeowner get a visually distinct, matching look to their home when you choose Central Window Systems.

Energy Efficiency

Whether you need new flush windows or a flush door, all of our flush products are highly energy efficient. They may have a period aesthetic, but flush windows provide quality modern performance thanks to their impressive double glazing. By increasing the efficiency of a heritage property, homeowners can benefit from a warmer, more comfortable home without having to rely on electricity or gas as often.

Our flush windows can reach U-values as low as 1.2 W/m²K and can come with an optional thermal chamber insulator for further enhanced thermal performance.

Find out how our Deceuninck uPVC flush casement windows can enhance a home’s energy efficiency and help save your clients money on energy bills via our energy savings calculator on our website homepage. See the Central difference for yourself, and switch suppliers today.

Security Features

You can grant homeowners peace of mind, as every one of our flush windows, and our flush doors, have all undergone rigorous testing to ensure that they are PAS 24 certified. Furthermore, our aluminium flush windows are certified under the Secure by Design schem as well. No matter which hardware option you choose for your next project, our flush doors and windows will be able to offer excellent safety to any property.
We’re proud to provide a 10 year guarantee for our flush doors and windows, as they are built to last.

Slim Sightlines

Compared to older timber windows or doors, uPVC flush windows and flush doors have sleek, slimline frames, providing excellent sightlines. A slimmer frame and profile can provide additional space for our double glazing, leading to a more efficient window. Additionally, larger panes of glass allow homes to be flooded with natural light, further reducing the reliance on electricity to keep homes warm and bright.

These benefits don’t even take into account the increased viewing angles that flush windows and flush doors have to offer.

Low Maintenance

uPVC and aluminium flush windows can grant these unique benefits without compromising on security or durability, as they are both robust modern materials capable of withstanding harsh weather conditions or sudden blows without warping, cracking, or swelling. Timber flush windows tend to need sanding, varnishing, and repainting every few years to keep them fresh and as good as new. Meanwhile, our flush windows are made from contemporary materials, which only require an occasional wipe down using soap, warm water, and a fresh sponge or cloth.

Customisation Options

One of the best advantages of our modernised flush windows and flush doors is their abundant customisation options. Our flush windows can come top hung, or side hung, as well as your choice of double or triple glazing. The glazing can range from 5mm thick all the way up to 42mm thick to suit your client’s thermal efficiency requirements.

But that’s not all! We’re pleased to offer the full range of Deceuninck colours, with over 30 colourways in stock for uPVC flush windows and our flush doors. The woodgrain foils can be the perfect choice if you’re in need of a heritage aesthetic to meet conservation standards. All the colours and woodgrains used on our flush windows or flush doors are designed to maintain their vibrance without scratching or fading over time from exposure to heavy rains or harsh sunlight.

Flush Windows and Doors Costs and Prices Guide

If you’re looking to start installing flush windows or flush doors, then it’s important to understand the things that can affect their price. Many things can increase or reduce the cost of flush windows or flush doors, such as their size, their number, their colour and customisation options, and the delivery.

At Central Window Systems, we’ve made it incredibly easy to get an accurate and competitively priced quote for any of our uPVC flush casement windows and uPVC flush doors. Our online quoting engine is free to use and can get you a trade quote for every one of our products in just a few clicks. Sign up as a Central installer now and gain access to a massive collection of bespoke marketing support for our entire range. The Central Hub app can get you all the images and brochures you need for flush windows, flush doors, roofs and lanterns, bifold doors, and much more.

For more information on our flush casement windows or flush doors, call us now on 0121 500 0505 or fill out our online contact form. One of our professional team members will be happy to help.


Martyn Elwell
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