Respecting The Past

We can’t deny that traditional timber sash windows are a thing of beauty. The craftsmen’s skills are evident in the smallest details, in the curve of a Georgian bar, in the grace of a sash horn and in the near-invisible joints in a frame.

But although we admire and respect the woodworker’s art, there’s no avoiding the fact that timber is expensive, and it can be troublesome in windows. That’s why most homes today have moved over to the energy efficiency, long life and easy-care qualities of Vinyl for their glazing.

Now, there is a way to respect the traditions of the past and enjoy the advances that make homes warm and secure. The mechanically jointed Vertical Slider is virtually indistinguishable in appearance from a timber sliding sash. What’s more it’s reliable, affordable and very practical.

The mechanical joint

In timber window frames, the corners are made by creating a mortise and tenon joint. Don’t worry about the words too much – simply imagine one side with a peg and the other with a slot. When the joint is put together well, there’s a thin vertical line on the frame, and the whole is either screwed or glued together.

When vinyl windows appeared, it became the norm for the corners to be welded with a mitre type joint. Again, don’t worry about the jargon – it’s the diagonal you’ll see in the corners of frames. It’s strong, weatherproof and effective, but the ‘weld-line’ is a big giveaway that it’s a vinyl frame. With sash windows, the true period aesthetic demands the look of a timber-type joint.

Our Viny frames can have mechanically jointed corners on both the sliding sashes and the outer frame. No more obvious diagonal welds, just a neat vertical joint that’s just as effective as a weld but which replicates, exactly, the appearance of a timber joint.

Ready For The Future
Our Vertical Sliders fully respect the history and heritage of our architecture, but they’re
bang up to date in terms of performance.

We believe that elegance and comfort can go together. We believe that homeowners want style, but we know they also want peace-of mind and security. We know that people care about our planet and our precious resources.

Westminster Vertical Sliders, for all their period charm, are built to exacting, 21stcentury standards and are fully prepared for tomorrow’s challenges.

Insulating and weatherproof

With fuel bills constantly rising, energy efficiency is essential. Our Vertical Sliders have 24mm/1″ double glazing as standard and woolpile strips to prevent drafts. The frames and sashes are multichambered, using the power of air as an insulator to stop warmth escaping. We can even add recycled thermal inserts, tucking them inside the frame for invisible – but effective – extra protection against the cold. Our unobtrusive gaskets are developed to last a long, long time, and we’ve even got a dedicated weather bar that’s ideal for more exposed locations.

Perfectly At Home Today
Our Vertical Sliders respect the heritage of
traditional windows and deliver the most
advanced levels of performance, but they’re also very practical and easy to live with, right now.

They insulate, they’re secure, and they have the safety features you need. They’re simple to care for and a doddle to operate. There’s a choice of 28 beautiful, foiled finishes, including several that replicate the appearance of painted wood.

Installation: We’ve matched the dimensions of a timber box sash. With the same front-to-back depth, installation is straightforward. Add our precision manufacturing and superb engineering, and you’ve got a frame that’s easy to fit and no trouble once it’s in place.

Operation and aftercare

Instead of fighting with weights, pulleys and broken sash cords, Westminster Vertical Sliders use reliable spiral balance mechanisms. Use the sash lifts or pull rings to move the sash just as far as you want, and it will stay in position. If there are children at home, add safety restrictors which limit the amount the sashes can move. To ensure the sash is safely closed, simply engage the neat snail cam mechanism.

Tilt-open facility

Because resources are precious, building things to last our Vertical Sliders have a handy tilt-open feature to both sashes. It makes cleaning the exterior glass from indoors easy.

Cleaning and maintenance

Timber frames take a lot of looking after – sanding, painting, wood preservatives – even so, they still rot, warp and stick.

To look after a Westminster Vertical Slider, simply wash the frames with soapy water, using a soft cloth and then dry them. Ensure drainage channels and pile seals are free of debris and lubricate the sliding mechanism with a bit of beeswax polish. Add a drop of light machine oil to the hardware. Job done.

Styles and Shapes
Our Westminster sliding sash windows can be manufactured to a style to suit your home. Below are a few examples of the different bar layouts available. Our windows come with equal sized top and bottom sashes
(50/50 split) as standard, however we are able to manufacture other split ratios at your request (minimum
transom drop of 350mm/13.75″).