Timber Alternative Sash Windows

Whether you’re revamping a period home or constructing a new one, Timber Alternative Sash Windows blend the charm of traditional aesthetics with modern functionality. They offer a lasting, easy to maintain solution with superior thermal efficiency, whilst elevating the visual appeal of your property.

Numerous design options mean you can discover the ideal Timber Alternative Sash Windows to enhance your home’s unique style.

Timber Alternative Sash Windows in Surrey

Preserve the timeless appeal of your historical residence or instil your contemporary Surrey home with exceptional allure.

Our Timber Alternative Sash Windows, also recognised as vertical sliders, flawlessly merge the classic aesthetics with top-tier performance benefits. Ideal for those who yearn for a robust, energy-efficient solution without forfeiting the conventional sash window design.

These bespoke Timber Alternative Sash Windows in Surrey present a plethora of design and configuration alternatives, granting you the liberty to opt for a style and finish that truly synchronises with your home’s aesthetic.

Timber Alternative Sash Windows are the perfect modern reinterpretation for heritage properties, providing a flexible window style. These windows are designed with cutting-edge innovation and are also energy-efficient, making them a beautifully functional choice for your home.

Bespoke Security

Customisable to meet the highest security standards.


Wide choice of colours and woodgrain finishes.


Authentic ovolo shape to the frame, bead, sash and cill.


  • Both sliding sashes can tilt inwards for easy cleaning.
  • Smooth operating balance mechanisms.

Energy Efficient

  • Window Energy Rating of ‘A’.
  • Draughts prevented with pile seals to the sash and outer frame.

Period Features

Optional Georgian bars, sash horns, weather bars and a deep bottom rail designed specifically to provide that period look.

Timber Alternative Sash Windows Advantages


Enduring Design

Unlike conventional wooden windows, Timber Alternative windows withstand weather and environmental elements. They don’t warp, rot or rust, guaranteeing extended longevity.


Simple Maintenance

These windows demand minimal upkeep. They don’t require repainting or resealing. A quick clean is all it takes to keep them looking pristine.


Superior Insulation

Timber Alternative Sash Windows are excellent thermal insulators, helping maintain a comfortable temperature in your home throughout the year. This can significantly decrease energy expenses.


With multi-point locking systems and strengthened frames, Timber Alternative Sash Windows offer high-level security.


Noise Reduction

These windows are effective at mitigating noise pollution, making them ideal for homes near bustling roads or city centres.


Diverse Designs

Timber Alternative Sash Windows are available in an array of colours and finishes, allowing you to align your windows with the style of your home.


Environmentally Conscious

These windows are a greener choice compared to traditional materials, due to the recyclable nature of the materials used.



Timber Alternative Sash Windows typically cost less than their wooden or aluminium counterparts, providing excellent value for money.

Easy to maintain

Timber Alternative Sash Windows offer more than just an eye-pleasing solution; they also deliver practical benefits.

Among our assortment of sash windows in Surrey, each variant has its unique advantages. Our Timber Alternative Sash Windows, in particular, are a standout choice for their exceptional durability and low maintenance requirements. These windows resist corrosion, rot, and warping, ensuring longevity and continuous appeal.

Moreover, our Timber Alternative Sash Windows serve as an excellent alternative to timber, offering the classic look of wood without the higher costs often associated with it. This makes them a cost-effective solution without compromising on style or durability.

Thus, with our Timber Alternative Sash Windows, you can enjoy a stylish, modern adaptation of a classic design that also offers resilience and practicality. These windows are not just about aesthetics; they are a well-rounded solution that caters to various needs, tastes, and budgets.

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Sophisticated Engineering

Our Timber Alternative Sash Windows have been meticulously crafted to replicate the classic details of the traditional vertical-sliding sash, all while ensuring no compromise on energy efficiency, thermal insulation, or ease of maintenance.

These windows aren’t just designed for visual appeal. They are also reinforced to provide enhanced security, making them a safe choice for your home. In essence, our Timber Alternative Sash Windows offer the distinct advantage of encapsulating the enduring grace of traditional sashes within a high-performance, modern solution.

With our Timber Alternative Sash Windows, you’re promised an elegant fusion of timeless allure of classic sashes with the benefits of cutting-edge manufacturing and security protocols. Savour the best of both worlds – the nostalgia of olden designs and the practicality of contemporary technology!

Technical Information



Our Timber Alternative Sash Windows maintain a 128mm outer-frame, mirroring timber sash proportions, making installation seamless. Window dimensions can range up to a maximum size of 1600mm wide and 3000mm high. Both large and small sash profiles offer uniform sightlines for the top and bottom sashes. Additional specifications include 150mm and 210mm sills, along with 10mm/20mm/50mm frame packers.



Our Timber Alternative Sash Windows feature an authentic ovolo shape to the frame, bead, sash, and sill, adding a touch of vintage elegance to your home. For added charm, we offer customisation options such as Georgian bars for a traditional feel, sash horns for an antique aesthetic, weather bars for added elemental protection, and a deep bottom rail, which is especially suited to period properties. Flush gaskets are utilised to emulate traditional glazing, accentuating the authentic appeal of our Timber Alternative Sash Windows. With these customisation options, you can craft a window that’s uniquely tailored to your home and personal preferences.



Our Timber Alternative Sash Windows are designed with a spiral balance mechanism cleverly positioned within the frame. This advanced system counterbalances the sash, enabling a smooth, effortless motion when opening or closing the window. Moreover, the window features an internal glazing bead, which significantly enhances window security compared to those with external beading. This design detail ensures that the window glass cannot be removed from the outside, adding an extra layer of safety.


Thermally Efficiency

Our Timber Alternative Sash Window systems are designed to achieve a Window Energy Rating of Band ‘A’. A-rated windows can drastically reduce your energy bills. Besides the cost savings, they also promote environmental sustainability by reducing energy wastage. These windows prevent drafts by incorporating pile seals to the sash and outer frame, further enhancing their energy efficiency.


Noise Reduction

As for noise reduction, double glazing is remarkably effective. The insulating space between the two panes of glass in a double-glazed window acts as a barrier, not only for heat but also for noise. This feature significantly reduces the level of noise entering your home, making Timber Alternative Sash Windows an excellent choice if you live in a noisy area or near a busy road. It’s an added benefit that goes hand in hand with the energy efficiency and environmental advantages of our Timber Alternative Sash Windows.

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One of our team would be happy to have a chat with you about your requirements, answer any unanswered questions and measure up at a time that suits you to provide you a free, no obligation quote.

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Our customers say

“Extremely knowledgeable and helpful, who knew there was so many options for a front door! In any case we found these guys and girls really straightforward to deal with, helpful and overall nice people.”Francesca East
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Areas we cover

Sheerwater Glass provides window installation and repairs throughout Surrey and the surrounding areas of our Woking showroom. If you’re interested in our services, we encourage you to check if we serve customers in your area by simply typing in your postcode.

If you check and find that we don’t serve customers in your area, in some cases, we may be able to help. Please call us to find out more.

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