Our stunning Evolve vertical slider by Kommerling does everything a traditional sliding sash window does and a whole lot more. No more draughts or windows that wont open. Pre-tensioned balances make the sash glide up and down and the ability to tilt both panes inwards makes both maintenance and cleaning a doddle.

Key Features:

• Sculptured Astragal bars to create an authentic look

• Traditional run-through sash horns

• 'A’ Energy Rated

• Both sashes slide and tilt for easy cleaning.

• Deep bottom rail option

• Reinforced with heavy galvanized steel

• Pre-tensioned maintenance free high quality balances

• A range of authentic colourways provide a serious alternative to traditional timber.

• Equal glass height as standard

• Virtually maintenance free