Ultimate Rose Sliding Sash

Ultimate Rose Sliding Sash Windows

Our Ultimate Rose sliding sash windows epitomise the Roseview design philosophy – it’s an outstandingly authentic, exceptionally-performing work of art.

Ultimate Rose Sliding Sash Windows

Every detail of the Ultimate Rose Sliding Sash Windows have been designed to replicate the charm and character of a timber sash window.
With slim timber-like profiles and an industry-leading 35mm meeting rail.
No other sash window can compete with it on style and authenticity.
There are Period features as painstakingly detailed as joinery-style mechanical joints, a deep bottom rail, run-through horns and external putty lines.
It would take an expert to spot that it’s uPVC.

Add to that the host of benefits that come with modern materials and techniques.
Such as energy efficiency and security, through to sound insulation and low maintenance.
You will see why Ultimate Rose represents the pinnacle of uPVC sash window design.

It’s also why it won New Product of the Year in the prestigious G13 Glass and Glazing Industry Awards.

 35mm meeting rail

At 35mm the Ultimate Rose meeting rail is the slimmest on the market.

It’s almost 10mm slimmer than our standard Heritage meeting rail, and leads the way in truly authentic uPVC sash window design.

And by designing our own meeting rail we’ve also done away with the tell-tale external interlock line.

Now the meeting rail looks exactly like a single solid piece of timber.

It’s just one more detail that gives Ultimate Rose its authentic appearance and sets it apart from the competition.

Ultimate Rose Sliding Sash

 Mechanical joints

You won’t find any welds on an Ultimate Rose – everything is fully mechanically jointed.

Using our custom-designed jigs, blocks and brackets, every join on the frame and sashes is finished as a butt joint – just like a timber window.

What’s more, the frame is joined horizontally while the sashes are joined vertically.

Not only does this add strength and rigidity, it accurately mimics the way original timber sashes were joined.

It’s this attention-to-detail that makes Ultimate Rose the most authentic, conservation-friendly uPVC sash window on the market.

Ultimate Rose Sliding Sash

 Run-through horns

Several years ago we designed our own run-through horn system, rather than leaving it to the systems companies.

Using a simple and bespoke horn design which – crucially – is topped off with a flush fitting cap, the result is the most authentic run-through horn you can get.

We could have gone down the easy route and designed a bold horn with a “hide all sins” wraparound horn cap.

But at Roseview we’re not interested in just finding the easiest path; we’re about making the best, most authentic windows we can.

Ultimate Rose Sliding Sash

 Slim sightlines

The Rehau Heritage VS profile is the envy of the industry, as it has – quite simply – the slimmest sightlines available.

It has flat putty-style external glass lines and subtly-moulded internal ones, which are fully matched on the astragal bars.

It also has triple-sealed concealed brushpiles, silver or white gaskets (so that they don’t stand out like black does) and an authentic deep bottom rail.

In short, the Rehau profile is simply the best one on which to base our Ultimate Rose windows.

Ultimate Rose Sliding Sash

 Foiled finishes

Ultimate Rose comes in white ash woodgrain finish as standard, but you can also choose from plain white, cream woodgrain, golden oak and rosewood.

On top of that, we can factory-spray the windows in any RAL colour you choose, either all-over or external only.

Whatever colour your customer meeds, we can sort it out for you.

Ultimate Rose Sliding Sash

 Modern features

Ultimate Rose has been specifically designed to be the most authentic uPVC sash window you can get.

However, that’s not done at the cost of modern features and benefits.

These include ‘A’ rated energy efficiency as standard, enhanced security and excellent acoustic performance helping to block out external noise.

Like every window in the Rose Collection, both sashes tilt inwards to make them easy to clean from the inside.

And best of all, Ultimate Rose windows are very low maintenance and never need repainting.


 Window specifics

Standard features

Rehau slim profile

Exclusive 35mm meeting rail

Fully mechanical joints

Run-through horns

Deep bottom rail

Flat external putty lines

Woodgrain finish (white, cream, golden oak, rosewood)

Bespoke globe claw furniture

Torsion balances

‘A’ rated thermal efficiency

Choice of gasket colours

Flush or projecting cill (225mm)

Tilt-in sashes for easy cleaning

Optional features

Flat white finish

Painted finish (any RAL colour on smooth or woodgrain)

Secured by Design

Limit stops to restrict opening

Slim-mullion option on combination windows

Extreme weather pack

Lifetime Homes pack

Standard features

Maximum width: 1500mm

Maximum height: 3000mm

Frame depth: 137mm

Meeting rail: 35mm

Deep bottom rail: 81mm

Cill depths: 149mm and 225mm

Glazing: 28mm IGUs

Standard finishes: white, white woodgrain, cream woodgrain, golden oak, rosewood

WER energy rating: A

Max width/height and energy rating are dependent on finish and glazing configuration.

 Ultimate Rose video

We offer you premium quality, British designed and manufactured windows, doors and conservatories.



Double Glazed Bay windows remain one of the most effective, appealing ways to brighten your home.

Equally suitable for contemporary and traditional properties, they’re a great way to make a luxury design statement.

Once installed double glazed or triple glazed Bay Windows really can look quite majestic.


A casement is a window that is attached to its frame by one or more hinges.

These double glazed windows are hinged at the side. They are used singly or in pairs within a common frame, in which case they are hinged on the outside.

Casement windows are the most popular windows that we install.


Double glazed or triple glazed Revival Windows are manufactured exclusively to us.

Revival faithfully replicates period timber window styling, right down to the details of conventional timber hardware.

It takes a magical step back in time for the great looks of authentic timber window detailing but also with all the benefits of low maintenance PVCu.


These Tilt and turn windows are ideal for many homes because they can be tilted inwards for effective ventilation. They can also be turned to make it easy for you to clean them from the inside.

As a result these windows will probably give you the best of all worlds.


A sash window is made of one or more movable panels, or “sashes” that form a frame to hold panes of glass.

For superior reversible and vertical sliding sash windows, we have options that will suit all styles of property.


Slim Sash Windows have a larger glass area, giving more daylight in the home and still achieve outstanding energy efficiency.

The more popular 70mm PVCu Slim SASH profile which is exclusive to us from Whiteline have a more elegant appearance as less profile is used.

 Canon Windows Quote

The double glazing quotes we offer cover all aspects of the job from making the windows right through to the installation. It also covers the removal of existing windows.

If you are unsure of any costs in association with the replacement of your windows then please give one of our team a call.

A colleague would be more than happy to give detailed quotes with no obligation. Ask us a question