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Everest flush casement windows

A window with traditional proportions and superior performance suitable for contemporary and period properties.

Everest flush casement windows combine the clean, flush appearance of traditional timber windows with the energy efficiency, and low maintenance of modern uPVC.

Made to measure for your home, the sash sits perfectly within the outer frame for an elegant, streamlined finish, while Everest Smoothweld technology creates near-invisible corner joints for an exceptionally refined appearance.

With an extensive range of woodgrain options and sophisticated colours available, you can make your windows look as traditional or as contemporary as you like.

Why choose flush casement windows?

Everest flush windows have a smooth elegant design giving a minimalist and uncluttered appearance that suits both traditional and contemporary homes:

Authentic timber aesthetic with weatherproof performance: Historically, British casements windows were always a flush design with the sash level with the frame. The lipped sash was only introduced in the middle of the twentieth century, to create a more weatherproof window for frames that lacked tight weather seals. Once manufacturing improved, flush casement are now made with tight tolerances and ultra-tight weather seals for excellent weatherproofing whilst retaining the traditional visual appeal.

Clean lines on a contemporary home: The main reason most customers choose flush casement is for the clean visual appeal of a sleek frame. The uninterrupted surface offers minimal styling and the architectural look of aluminium in a uPVC frame. Perfect for anyone that wants a less intrusive frame and to avoid the distinct and thicker feel of uPVC casement

Exceptional energy efficiency: Everest flush casement windows with triple glazing are our most energy efficient window frame that offers an impressive ultra low 1.0W/m2k U-value. Fitted with double glazing the flush window offers low 1.4 W/m2K rating. The superior energy efficiency ensures your home keeps warmer and your energy bills are lower.

Timber character without the upkeep: Wooden window frames are high maintenance and need repainting at least every five to eight years, which is four to six repaints over a 30 year lifetime. uPVC is easy to clean and maintain with a wipe of warm soapy water. Flush casement with a woodgrain foil finishes looks almost as good as timber with the same character, but it doesn't rot, peel or flake.

Of course, the sleek visual doesn't appeal to everyone and some properties suit other styles of window better (read below). For a property that is weather exposed or near to the coast, we would only recommend storm casement windows to deal with anything the British weather can throw at it.

Windows in a Conservation Area

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Flush Vs Casement Windows

The difference between flush and standard casement windows

What is a casement window?

The oldest and most popular window frame style as the design is so versatile.

Windows for types of houses

Choose windows based on the age and architectural style of your house.

Which homes suit flush casement windows?

Flush casements are a versatile window frame style that can suit many types of property and can be tailored with colours and finishing for a bespoke option.

Period properties and cottages

Sash windows dominated the front elevations of larger Georgian and Victorian houses, but side-hung timber casement frames were standard on cottages, rural properties, smaller terraces and the rear elevations of almost everything else. A flush profile reproduces those proportions closely. Specify white or cream woodgrain foil with Georgian bars and a monkey tail handle, for a period replacement.

1930s and interwar homes

The 1930s semi is one of the most prolific house styles in Britain, and most were built with timber or steel casement window frames. Original windows often carried leaded detail and sat in a two-storey bay. Flush casements suit both, particularly with internal Georgian bars and a white or black frame, to match the original elevation most closely.

Contemporary homes

On newer properties the same profile does the opposite job. Anthracite grey smooth or Black Ash, no glazing bars, larger panes and an inline handle give a spare, minimal window that suits render, brick and full-height glazing.

Read more about types of British houses to find suitable window styles for your property.

uPVC flush casement window colours

Our windows are available in a beautiful range of colours including uPVC woodgrain finishes, which look like real wood but without any of the maintenance issues. The single colour frames are the same colour inside and outside. Whereas on dual colour options, the frame is white woodgrain inside with a second shade on the exterior, in keeping with both the character of your property and inside décor.

White woodgrain

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Cream woodgrain & White woodgrain

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Agate Grey woodgrain & White woodgrain

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Grey Cedar woodgrain & White woodgrain

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Anthracite Grey smooth & White woodgrain

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English Oak woodgrain

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English Oak woodgrain & White woodgrain

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White woodgrain & English Oak woodgrain

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Black Ash woodgrain & White woodgrain

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Black Ash sash & White woodgrain frame

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uPVC Flush Casement window furniture

We offer a range of window handles and colours to match the style of your home, all offering flawless operation and outstanding quality.

Casement Premium Monkey Tail Brushed Satin

Brushed Satin

Casement Premium Monkey Tail Gold

Gold

Casement Premium Monkey Tail Chrome

Chrome

Casement Premium Monkey Tail Antique Black

Antique Black

Brushed Satin

Gold

Chrome

Antique Black

White

Gold

Chrome

Black

Brushed Satin

Dark Bronze

Casement Premium Inline Antique

Antique

uPVC Flush Casement dummy peg stays

For an authentic look in a traditional or heritage building dummy peg stays can be fitted to our uPVC Flush Casement windows to keep a timeless timber look and feel to the window.

Tear Drop Brushed Satin

Tear Drop Gold

Tear Drop Chrome

Tear Drop Antique

Monkeytail Brushed Satin

Monkeytail Gold

Monkeytail Chrome

Monkeytail Antique

FAQs about flush casement windows

What is a flush casement window?

Also called a flush sash window, a flush casement window is designed so the opening sash sits flush with the surrounding frame, so there is no protruding lip on the outside. This offers sleek lines with an elegant aesthetic that mimics traditional timber joinery.

Flush windows are increasingly popular with contemporary properties where homeowners prefer the simplistic, smooth façade this window design provides. 

Everest flush casement windows are available in uPVC, with our signature Smoothweld corner joints that make the frame joints almost invisible.

What is the difference between storm and flush casement windows?

The main difference between flush casement windows and storm casement windows is a storm casement window is 'lipped', with the openable parts protruding from the frame, whereas flush casement windows sit completely flush inside the frame when closed. Both style of window open outwards on hinges.

A storm casement design (lipped) does have the advantage of being slightly more weatherproof as it can shed water away from the edges. The flush casement design looks more traditional as it echoes timber joinery finishes, but has also become popular in contemporary properties due to the more sleek aesthetic.

Are flush casement windows more expensive?

Flush casement windows usually cost slightly more than standard casement windows, because the sash and frame have to be made to tighter tolerances for a perfect aesthetic where the corners sit in the frames.

Costs will also depend on the options you choose, such as the finish and colour. Woodgrain foils and non standard colours cost more than a standard white uPVC.

The differences in cost are minimal and the colours and finishes can affect the price more than the design.

Are flush casement windows suitable for period homes?

Yes. Flush casement windows suit period homes because the sash sitting level with the frame closely mimics the flat profile of traditional timber joinery. The lipped sash on standard casement frames is the detail that makes uPVC window frames obvious. With a woodgrain foil and the right colour, a flush casement window can look like a traditional frame and sympathetic to the age and style of the property.

Advice and inspiration

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Find out when you need permission to replace old windows.

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