Commonplace in Georgian, Regency or Victorian properties, the sash window has advanced over the years and with the development of innovative and modern technology, the flush sash window was born.

The flush sash window design features sashes that close into the frame and finish flush with the face of the window, making for a slim line and seamless appearance. They typically have frames that appear the same width, known as ‘equal sight lines.’ This is achieved by using dummy sashes which improve the appearance of the window design and give them the traditional sash window look.

A Timeless Classic

Our flush sash window design is in keeping with the original style, recreating the appearance of timber, resulting in an understated and sleek look.

Complements Any Property

Designed to harmoniously blend into the surroundings of a property, they are discreet and maintain the decorum of any style of property including period and listed buildings.

High Quality

Deceuninck faithfully reproduce the elegance of traditional timber with premium grade, modern uPVC and aluminium materials, making for a low maintenance and thermally efficient window solution.

Affordable Solution

Replacing your existing windows with our flush sash window profile gives your home a refined and sophisticated look at a budget-friendly price.

Why Choose our Flush Sash Window Design?

Our flush sash window design features a classic look, flawlessly manufactured by Deceuninck. Offering an authentic feel with state-of-the-art technology, you don’t ever have to compromise between style and function. All of our flush sash window designs are made with precision, ensuring a high quality profile every time.

Our woodgrain effects are suitable for a range of property types including period and listed buildings. This is because they offer a discreet and traditional aesthetic that doesn’t compromise the aesthetic of the property, keeping a timeless and refined feel. The hardware is concealed so that there are no unsightly corners on show enhancing the slim line appearance.

When the flush sash window design is closed, the window sits flush against the window frame which recreates the look of traditional joinery. You can enjoy authentic windows that provide all of the modern benefits that uPVC and aluminium can give.

Heritage Flush Sash Video

The Benefits you gain when Choosing our Flush Sash Window Design

Our flush sash window design encourages natural light into your home, making a room feel larger and more spacious. Increased sunlight brightens a room and creates a welcoming atmosphere with less of a need for artificial lighting. With the added benefit of improved thermal efficiency, your energy costs will reduce over time and your carbon footprint will become smaller. Intelligently engineered to achieve high energy ratings, our flush sash window design brings thermal benefits to any home and helps you maintain a warm and comfortable temperature all year round.

The flush sash window design is made specifically for you and your home, complementing your property and catering to your personal taste. We know that security is highly important which is why all of our flush sash window designs incorporate highly secure locking mechanisms as standard.

Our flush sash window design is created to be virtually maintenance free, with only a general wipe down needed every now and then to keep them looking brand new. This saves you time and money, as they will never need repainting, re-staining or varnishing to upkeep them.

Heritage Window Colour Collection

A Custom Flush Sash Window Design to Cater to your Personal Taste

At Deceuninck, we specialise in colour. That’s why we offer a vast range of colours in our Heritage Colour Collection with 26 colourways from stock so that you can create the ideal palette for your home.

Our colours are hand-picked, featuring stunning shades such as Chartwell Green, Golden Oak, English Oak and Classic Cream. You can also opt for a dual colour solution with the insides of your frames in a different colour to the exterior.

Choose from six premium woodgrain colour foils and 18 unique colour foils in our Colour Express collection, giving you endless possibilities.

With matching ancillaries, trims and accessories, you’ll be able to create a bespoke colour scheme that matches your personal taste and your property aesthetics.

We provide a 10 year manufacturers guarantee to provide peace of mind when adding our flush sash window design to a property. Our windows will not suffer or deteriorate over time.

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

Heritage Window Accessories

Our Heritage window accessories can perfectly complement our flush sash windows to give them the finishing touch they deserve. From ornate handles to more simple styles in a number of metallic finishes or neutral colours if you’d prefer, we have the perfect solution.

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

Flush Sash Window Design Prices

Enjoy the flush sash window design without breaking the bank. We provide exquisite sash window design profiles for all property types, whether you own a traditional style property or a contemporary home.

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

Heritage Glass Options

You can choose from our vast range of glass effects or patterns for your flush sash windows. All of our Heritage glass options are also available toughened or laminated for extra security and safety. The flush sash windows benefit from equal sightlines that add balance and harmony with a subtle touch to any property.

Charcoal Sticks


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

Call us today on 01249 816969 or Send Us a Message to Find Out More

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