Call Free0800 876 6172

Today’s opening times

9am - 6pm

GET A FREE QUOTE

Everest Flush casement windows

Traditional proportions with contemporary performance

Everest flush casement windows combine the clean, flush appearance of traditional timber windows with the energy efficiency, security 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.

Why choose flush casement windows?

Text here

Which homes suit flush casement windows?

Text here

Flush Casement Window Benefits

How much do windows cost?

Our guide to the cost of new windows and what makes a difference to the price

Flush Vs Casement Windows

The difference explained between flush casement and standard casement windows

How to choose new windows

Everything you need to know about buying new windows for your home.

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

More info

Cream woodgrain & White woodgrain

More info

Agate Grey woodgrain & White woodgrain

More info

Grey Cedar woodgrain & White woodgrain

More info

Anthracite Grey smooth & White woodgrain

More info

English Oak woodgrain

More info

English Oak woodgrain & White woodgrain

More info

White woodgrain & English Oak woodgrain

More info

Black Ash woodgrain & White woodgrain

More info

Black Ash sash & White woodgrain frame

More info

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.

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.

Stainless steel Everest conservatory handle

Inline Handle

Brushed nickel window handle for Everest conservatory

Teardrop handle

Silver colored window handle with scroll design

Monkey Tail

Flush casement window FAQs

At Everest, we understand that choosing new windows can be a daunting task. So to help you here are some frequently asked questions which you might find useful.

What is a flush window?

A flush window is designed so the opening window sits flat and flush with the surrounding frame offering sleek lines and providing a simple yet elegant aesthetic. Flush windows are becoming increasingly popular with contemporary properties where homeowners prefer the simplistic, smooth façade this window design provides. The alternative is called a storm sash where the sash overlaps the frame offering greater perfection from heavy weather.

Are flush casement windows more expensive?

Are flush casement windows more expensive?

The flush casement windows come in a variety of finishes and colours, so the costs involved will depend on the options you choose. That said, the difference between flush casements and traditional casement windows is very little. With an extensive range of options to choose from, you can make your windows as traditional or contemporary as you like.

What colours are available?

At Everest we offer a beautiful range of colours and natural woodgrain finishes, so there is a perfect colour to suit every property. Colours range from the traditional white uPVC finish, through to Sage Green and ultra-contemporary smooth anthracite grey or black. Add a modern twist to your windows, with dual colours, complementing the inside and outside of your home.