Ultimate

The Ultimate timber alternative sash.

Outstandingly authentic sash window, the Ultimate Rose sash window has been carefully designed to maintain the character and charm of timber sash windows whilst giving the benefits that we associate with modern upvc windows and energy efficient glazing.

Ultimate sash windows

Product Highlights

Mechanical joints

No welded joints - fully mechanically jointed.

Mechanical joints


Roseview have developed their own in-house process for creating mechanical joints on their Ultimate sash window.

Every joint on the Ultimate Rose is finished with a butt joint just like on any timber sash window. The frame are jointed horizontally and the sashes are jointed vertically which adds to the overall strength of the window, as well as accurately mimicking the manufacturing process of timber window.

Slim sightlines

35mm meeting rail

Slim sightlines


Designed to imitate original timber windows, our Heritage window has putty-style external glass lines and moulded internal lines, with the same moulding on the astragal bars.

The brushpiles are concealed and available in silver and white gaskets to ensure that they don’t stand out like black gaskets giving a more authentic look. Our Heritage window also features an authentic deep bottom rail.

Run-through horns

Truly Authentic Run Through Horn

Run-through horns


A unique and authentic run through sash horn, a simple and bespoke horn design that is capped off with a flush fitting cap give the true look of timber.

After lots of comparison with other sash window brands we feel that the Roseview run through horn is the best on any timber alternative window, another reason why we choose Roseview as our timber alternative sash window of choice.

Product Details

Ultimate Sash Benefits

Designed and manufactured to closely replicate original timber sliding sash windows, the Charisma Rose uPVC sash window has all of the benefits of modern uPVC windows such as A rated glazing, modern security and thermal properties.

All of our Timber alternative windows are A rated as standard. The Charisma Rose offers excellent acoustic properties helping to block out unwanted noise, a particular problem with old single glazed sash windows. On top of this the Charisma is PAS 24 accredited as standard so that you know your home is safe and secure with a Charisma Rose window.

As will all our Roseview range the sliding sashes can be tilted backward for easy cleaning internally. The sashes are extremely easy to operate thanks to the modern spring balanced system and last but not least they are extremely low maintenance never needing to be repainted.

Standard features

Eurocell profile
Sculptured ovalo detailing
Decorative horns
Welded joints
Traditional furniture
Torsion balances
‘A’ rated thermal efficiency
Flush cill
Anti-jemmy bar

Sash window installation

Optional features

Run-through horns
No horns
Deep bottom rail
White, cream, white woodgrain, cream woodgrain, Irish oak, golden oak or rosewood finish
Painted finish (any RAL colour on smooth or woodgrain)
Projecting sub-cills (180mm and 210mm)
Secured by Design
Lifetime Homes pack

Large timber alternative sash window installation.

Charisma Rose - Product Video