Sash Windows

Sash windows consist of two glazed panels known as "sashes" and come in single or double-hung configurations. Single-hung sashes move up and down on a vertical slider, featuring only one movable panel, whereas double-hung sashes involve both panels in motion. Our sash windows offer the convenience of tilting open for simplified upkeep and enhanced airflow. 

Sash windows not only maintain the warmth and security of your home but also retain its timeless appeal. Crafted to fit your specifications, our double-glazed sash windows are available in wood or uPVC with standard energy ratings of A or A+.

Sash Window Materials

Modern UPVC sash window with double glazing, enhancing energy efficiency and security for homes.
Classic wooden sash window, adding timeless elegance and charm to traditional and heritage-style homes.

upVC Sash

  • Up to A+ Rated
  • Classic and Elite styles
  • Painted and woodgrain effects


Wooden Sash

  • A or B energy rating
  • Hard or soft wood
  • Wide range of colours


Reasons to Choose Sash Windows

1. Save Money on your Heating Bills

Sash windows contribute to retaining warmth within your home by incorporating thermal inserts to prevent the escape of warm air. Additionally, they feature high-performance pile weather seals to minimize draughts effectively.

2. Easy Open

The internal open and close mechanism of our sash windows ensures smooth and effortless operation, thanks to a system of concealed runners and springs that are perfectly counterbalanced.

3. Add Value to Your Home

Contemporary double glazed sash windows not only enhance the energy efficiency of your home but also elevate its aesthetics, representing a wise long-term investment.

4. Enhanced Security

Our sliding sash windows come with standard key-operated cam locks and limit stops. Additionally, security bars and reinforced sashes provide extra protection against intruders.

Choose Lord-Sykes Property Services: Your Local Provider of British Windows with a 10-Year Guarantee

Our British-made windows come with a 10-year parts and labour guarantee, ensuring your peace of mind for years to come

our windows are crafted from start to finish in a British factory, showcasing the expertise of skilled artisans throughout the manufacturing process.

Determine if Flush Sash Windows Suit Your Home

Are New Windows a Valuable Investment for Your Home?

Discover the benefits of upgrading to double or triple-glazed windows to enhance your home's appeal to potential buyers.


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Frequently Asked Questions

Tailor-Made Windows

Discover how we help you create made to measure windows that are just right for your space and your home.


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Choosing the right window material

Read our guide on how to choose between upVC, wood or aluminium for your windows.


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Can you double-glaze existing Sash Windows

It's not possible to double-glaze existing single-glazed sash windows. However, you can enhance your current single-glazed sliding sash windows by upgrading to our double-glazed sash windows. If you seek to improve your window's energy efficiency and prefer a more economical solution, consider secondary glazing. This option involves fitting secondary glazing behind your existing sash windows to enhance warmth and sound insulation.

How do you measure Sash Windows?

To measure up for replacement sash windows, you need to measure the sash window width and height, as well as the box frame width and height (the size of the hole in which the window is set). Our sliding sash windows are custom made to fir your home, contact us to book a free consultation