Casement Windows

True beauty in the strong lines

A REAL CASE FROM JUST £500 per window

There is a simple joy to opening a solid casement window and allowing a warm fresh breeze to enter your home.

There is true beauty in the strong clean lines of these windows, as well as the impactful look they give a building.


But if that breeze is a draught when the windows are closed, or the wooden frames are creaky and rotten when forced open...


…Ventrolla can re-imagine them as modern windows with a real 16th century feel.

Renovate Old Timber

Just like sash windows, the first part of casement repairs focus on renovating or replacing any rotten timbers in the casement sash or frame.

Renovate or Replace

If required, a new moving sash can be made to replace the existing sash in your casement window and simply replace the old one. This can be single or double-glazed, dependent on choice and budget.

Draught proofing system

Next we focus on performance upgrading the window by installing a draught proofing system, our unique Ventrolla Perimeter Sealing System.


The Ventrolla Perimeter Sealing System (VPSS) is installed into the frame of the casement window, depending upon its construction, or, if appropriate, installed into staff bead around the frame.

Permanent fixing point

The draught proof pile carrier is routed into the timber of your window giving a permanent fixing point and making the system an integral part of the window.


Finally, we check your window is opening and closing properly, and replace or install any new hardware, if required.



By really caring for the original materials and using thorough renovation techniques Ventrolla can add value to your home, eliminate draughts and rattles, lower your energy bills, reduce outside noise and provide easier to use windows. Visit our ‘contact us’ now page and let us help make your windows exceptional