With a large range of options to choose from and a number of materials to consider, you’ll need to spend time when it comes to choosing the right flush sash windows for your home improvement project.

Our flush sash windows are competitively priced so that your home improvement project can fall within your preferred budget. You’ll need to get in touch with your nearest Deceuninck installer to discuss the size of your windows, the style, the glazing, materials, security options and more. Once they have all of these specifications, an accurate quote can be provided.

Your expert installer can guide you through our range of flush sash windows to help you achieve the exact look you had envisioned. We’re all about making your vision a reality and with our superb flush sash window profile, you’ll be glad you chose us for your home improvement project.

What makes the Flush Sash Window a Cost-Effective Solution?

Firstly, our flush sash windows are created with high quality uPVC that retains the authentic look of timber whilst adding a whole host of features and benefits that wood simply cannot compete with. Typically, flush sash windows are more cost-effective than any other window styles making them a feasible and budget-friendly solution for any homeowner. The cost-to-benefit ratio is always improving with the continual development of the flush sash window profile.

Timber frames can be expensive and with the additional need for continual upkeep such as re-staining, re-painting and varnishing, the cost of timber frames rises over time adding an unnecessary cost to the homeowner. Flush sash windows, once installed, will not cost money to maintain making them a much more attractive option compared to their timber counterparts.

The flush sash window is virtually maintenance free, making them easy to upkeep during their long lifetime. Only requiring a simple wipe down to keep them clear of debris or dirt. Unlike timber, our uPVC flush sash window design is not susceptible to rotting, warping or discolouring so they make a cost-effective and durable solution for any property in any location.

Another cost-effective benefit of the flush sash window is thermal efficiency they provide, with a multi-chambered profile, they retain heat and keep the cold out making for a warm and comfortable environment inside your home all year round. You can select from a range of hardware options including thermal breaks or additional glazing to maximise the thermal efficiency of your flush sash windows.

Money is no object when it comes to your family and homes safety and protection however our flush sash windows come with high security locking mechanisms by default meaning that you will be adding a cost-effective and secure solution to your home without breaking the bank. All of our Heritage flush sash windows feature multi-point locking systems which have been tried and tested to withstand potential break-ins and forced entry. You’ll not only benefit from a fantastic price but you will enjoy peace of mind that your home is safe and sound.

Heritage Flush Sash Video

When Should I replace my Timber Windows with uPVC Flush Sash Windows?

You can upgrade your current windows and replace them with brand new flush sash windows at any time. It couldn’t be easier. They are simple to install and if you choose one of Deceuninck’s official installers, you can enjoy your flush sash windows almost immediately at a competitive and unrivalled price.

If you have window frames that are looking tired or worn, with a lack of insulation and soundproofing our flush sash windows are the perfect replacement. We believe that all homeowners should be able to enjoy quality flush sash windows that add a multitude of features and benefits to any home they are installed into. uPVC flush sash windows make a fantastic alternative when it is time to upgrade, saving you money and improving the aesthetics of your home.

For homeowners that want the appearance of timber but all of the functionality and benefits that uPVC provides, the flush sash window is an ideal choice. We are renowned for our colour range and personalisation options meaning that you can create a bespoke solution for your home that is unique to your personal taste. With hand-picked colours specifically chosen to help you create the perfect palette for your property, we also offer a 10 year manufacturers guarantee which means your new windows will stay looking beautiful for years to come.

Heritage Window Colour Collection

Colour Collection

White Grain
Classic Cream
Chartwell Green
Irish Oak
Golden Oak
Nut Tree
Anthracite Grey
Black Ash
Agate Grey
Ice Cream
English Oak
Heritage White
Anthracite Smooth
Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Antique Black
Hardex Chrome
Hardex Graphite
Hardex Gold
Matching Traditional Peg Stay
Hardex Chrome
Hardex Gold
Hardex Gold
Hardex Graphite

Heritage Glass Options

Charcoal Sticks

Flush Sash Windows Prices

You can enjoy flush sash windows at unrivalled and competitive prices. Simply contact your nearest Deceuninck installer to find out more information and to discuss your specific needs and requirements.

Call us today on 01249 816969 or contact us today for more information.


ISO 9001
BSI Kitemark
Glass & Glazing Federation
Secured By Design
PAS 24

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