Flush Casement Windows

Flush Casement Windows – Sleek, Stylish & Energy Efficient 

Upgrade your home with beautifully crafted flush casement windows, designed to sit perfectly level within the frame for a clean, minimalist look. Combining timeless aesthetics with modern performance, flush windows are an ideal choice for both traditional and contemporary homes.

Flush Flush Casement Windows Flush Sash

We work closely with some of the UK’s best manufacutrers & profile creators to bring you a choice of options, styles & colours.

Standard Casement & Energy Plus

The design of flush sash windows takes inspiration from traditional timber joinery, allowing the sash to sit flush in the frame. They are ideal for homeowners looking to bring a traditional charm to their home.

Lowest U Value 1.2 W/m2k
Max Glass Thickness 28mm
Profile Scupltured or Chamfered

Profile Colours



Handle Colours

Resurgence

The UK’s first double-rebated uPVC flush sash window, Resurgence by Liniar takes the timber-alternative window concept to whole new levels of security and beautiful aesthetics.

Lowest U Value 0.87W/m2k
Max Glass Thickness 40mm
Profile Chamfered

Profile Colours



Handle Colours

Standard Casement

An externally flush sash offers enhanced
aesthetics to rival that of traditional timber
windows and our UPVC alternative delivers
better thermal performance and energy rating
than timber options with A++ available 

Lowest U Value 0.9 W/m2k
Max Glass Thickness 36mm
Profile Ovolo or Chamfered

Profile Colours



Handle Colours

What Are Flush Casement Windows?

Flush casement windows are designed so the sash (the opening part of the window) sits flush within the outer frame, rather than overlapping it. This creates a smooth, flat finish that enhances kerb appeal and delivers a refined, high-end appearance.
Originally popular in period properties, modern flush windows now feature advanced materials and technology for improved durability and energy efficiency.

Are flush casement windows energy efficient?

Yes, modern flush windows are designed with advanced glazing and insulation, making them highly energy efficient.

Do flush windows cost more?

They can be slightly more expensive than standard casement windows, but the aesthetic and performance benefits make them a worthwhile investment.

Can they be used in conservation areas?

Yes, especially timber or heritage-style uPVC options that replicate traditional designs.

Are flushcasement windows available in different colours?

Yes, fluish casement windows are available in a wide selection of colours and finishes, including white, grey, black, cream, and woodgrain effects.

Our Obscure Glass Range

Teffeta Teffeta
Sycamore Sycamore
Stippolyte Stippolyte
Reeded Reeded
Pelerine Pelerine
Oak Oak
Minster Minster
Mayflower Mayflower
Florielle Florielle
Everglade Everglade
Digital Digital
Cotswold Cotswold
Charcoal Sticks Charcoal Sticks
Chantilly Chantilly
Autumn Autumn
Artic Artic

Design Your Own Windows

Click the image below to use our window design software to design your own windows. Please note due to a bug in Chrome on Android only the designer will not display correctly but does work on all other browsers.

Window Designer Software
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