Smarts Flush Casement Windows

Our aluminium flush casement windows are manufactured using the Alitherm 800 profile from Smarts. Their innovative design is inspired by the slimline aesthetic of timber and is an excellent window for residential and light commercial applications. They are perfectly suited to traditional installations and are also suitable for high-end contemporary applications.

Attractive aesthetics and superb performance


To create the classic smooth finish, the Alitherm 800 profile features a completely flush exterior with ultra-slimline transoms and mullions. It is fully customisable and can be manufactured to meet your exact project specifications. It can accommodate 24mm or 28mm double or triple glazed units with a maximum frame depth of 70mm and is available as either a side hung or top hung window.

In terms of performance, flush casement windows fabricated using the Alitherm 800 profile exceed all Building Regulations requirements. They are ‘A’ rated for energy efficiency and can achieve U-values as low as 1.3W/m²K. They achieve PAS 24:2012 security accreditation and are rigorously tested for air, water, and wind resistance.

Extensive choice of durable colour finishes

All aluminium flush casement windows are available in a wide range of colours. Choose from the entire RAL range including metallic finishes, dual colour and Alchemy anodised effect finishes. You can also select a colour from the Cotswold and Sensation range for a unique textured finish.

When you want to offer your customers a window which is both high performing and aesthetically attractive, our Smarts aluminium flush casement windows are the perfect windows for you.

Smarts flush casement windows: features and benefits

  • Polyamide thermal break technology to reduce thermal transmittance
  • Document L compliant for fuel conservation
  • Kitemarked to meet British Standards performance criteria
  • Versatile profile suitable for residential and light commercial applications
  • Durable and low maintenance powder coat finish
  • Stylish fully flush aesthetic
  • High security locking system and friction hinges for superior security performance