Vertical Sash Windows

Expertly Crafted Vertical Sash Windows

Our bespoke vertical sash windows combine traditional timber craftsmanship with modern performance, making them the perfect choice for period properties, listed buildings, and contemporary homes seeking timeless character. Made to measure and manufactured using premium materials, every window is designed to preserve the elegance of classic sash windows while delivering outstanding energy efficiency, security, and durability.

Whether you’re replacing existing sash windows or installing new timber joinery, our vertical sash windows are tailored to complement your property’s unique style and architectural heritage.

At ERW, we’ve been manufacturing high-quality timber sash windows since 1979. Combining traditional joinery techniques with modern glazing, weather sealing, and security features, our vertical sash windows retain the authentic appearance of historic windows while meeting the expectations of modern living.

Available with either traditional cord and weight mechanisms or modern spiral balance systems, every window is manufactured to your chosen specifications for a flawless fit and finish.


Features of Our Vertical Sash Windows
Authentic Period Design

Carefully crafted to replicate traditional sash windows, our bespoke designs preserve the original character and proportions of period and heritage properties.

Traditional or Spiral Balance Options

Choose between classic cord and weight operation or modern spiral balance mechanisms, depending on your property’s requirements and personal preference.

Made-to-Measure Timber Windows

Every vertical sash window is manufactured to your chosen measurements, ensuring a perfect fit and exceptional finish.

Improved Energy Efficiency

High-performance glazing and precision weather seals help reduce heat loss, minimise draughts, and improve the comfort of your home.

Built for Modern Security

Our timber sash windows are fitted with high-quality locking systems that provide enhanced security while maintaining a traditional appearance.

Perfect for Heritage Homes

Our vertical sash windows are ideal for listed buildings, conservation areas, and period renovations, offering sympathetic designs that respect the original architecture.


Frequently Asked Questions
What are vertical sash windows?

Vertical sash windows consist of two glazed sashes that slide vertically within the frame. They are a classic window style commonly found on Georgian, Victorian, and Edwardian properties, valued for their timeless appearance and practical operation.

What’s the difference between cord and weight and spiral balance sash windows?

Traditional cord and weight sash windows use concealed counterweights to balance the sashes, while spiral balance systems use spring mechanisms. Both provide smooth operation, with the most suitable option depending on the property’s style and your individual requirements.

Are vertical sash windows energy efficient?

Yes. Our vertical sash windows are manufactured with modern glazing, quality weather seals, and precision joinery to improve insulation and reduce heat loss while maintaining their traditional appearance.

Can vertical sash windows be installed in listed buildings?

Yes. We regularly manufacture bespoke vertical sash windows for listed buildings and conservation areas, carefully replicating traditional designs while incorporating modern performance features where appropriate.

Do vertical sash windows reduce draughts?

Absolutely. Modern weather seals and precision manufacturing help eliminate unwanted draughts, improving comfort and energy efficiency throughout your home.

Can I customise my vertical sash windows?

Yes. Every window is made to order, allowing you to choose the timber, finish, colour, glazing options, ironmongery, and operating mechanism to suit your property.

How long do timber vertical sash windows last?

With premium materials, expert craftsmanship, and regular maintenance, timber vertical sash windows can provide decades of reliable performance while retaining their appearance.

Should I replace or refurbish my existing sash windows?

This depends on their condition. Where possible, refurbishment can preserve original features while improving performance. If the windows are beyond economical repair, bespoke replacement vertical sash windows can provide the same traditional appearance with enhanced energy efficiency and security.

Get In Touch

We are trusted by homeowners for creating beautiful, bespoke timber windows, doors and outdoor living products.

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You can reach a member of the team by calling 01642 456167 or emailing info@erwltd.co.uk and we will get back in touch.

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