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A Buyers Guide To Sash Windows

Osborn Windows > News > A Buyers Guide To Sash Windows

A Buyers Guide To Sash Windows

Sash windows have stood the test of time, gracing homes with their elegance and functionality for centuries. In the most recent years their popularity has soared and they are fast becoming a staple in British architecture, adding a touch of sophistication to both period properties and contemporary homes. If you’re considering purchasing sash windows for your humble abode, this buyer’s guide will help you navigate through the various options and factors to consider.

What are sash windows? 

There are two primary types of sash windows, box sash windows and sliding sash windows. Box sash windows, also known as double-hung windows, consist of two movable sashes that slide vertically past each other. Sliding sash windows, on the other hand, have one fixed sash and one movable sash. Understanding the different types can help you choose the style that best suits your home’s architecture and your personal preferences. The design of sash windows has evolved over the years, and you can now find modern sash windows that blend seamlessly with contemporary designs, providing the best of both worlds.

The benefits of sash windows

Sash windows have a number of benefits which has seen them become a popular choice for homeowners. 

  • Versatility 
  • Great security
  • Adding value to your home
  • Easy maintenance and longevity 
  • Energy efficient and great ventilation 

For more in depth information read our blog on why sash windows are so popular

Say goodbye to rot, swelling or warping

Luckily the old fashioned way to open sash windows has, well, gone out of the window. Years ago, to open a window there would be a rope pulley system. Nowadays this is all built in, meaning the windows are less bulky and are easier to operate, making rot, swelling and warping a thing of the past. 

Sash window materials

We’ve made it easy for you by breaking it down into the most popular materials, which window works for each style of property, and the advantages and disadvantages (if any). 

Aluminium sash windows 

Opt for aluminium to get modern security and strength with a sophisticated look. Aluminium sash windows also have the advantage that they can slide both vertically and horizontally making them perfect for all property types including flats, commercial, properties and houses. They offer high insulation levels that exceed British energy standards and also are low maintenance. 

Timber sash windows

Perfect for heritage properties or houses located in areas of natural conservation or beauty! Timber doesn’t compromise on performance or security and can withstand all of the wonderful British weather! Each window is bespoke down to the frame, colour and working mechanisms to fit in with any home. Timber is one of the more pricey options, but worth it for the true timber authenticity. 

UPVC sash windows 

If you’re on a budget, UPVC could save you some money as it’s a great alternative to timber offering a traditional style without the price tag. A couple of extra bonuses are that UPVC  is low maintenance and very energy efficient. 


Sash windows offer a blend of classic charm and modern functionality, making them a fantastic choice for homeowners. Whether you’re aiming to restore the historical authenticity of your property or seeking to add a touch of elegance to your contemporary home, sash windows can meet your requirements. 

Where can I get sash windows?

Get in touch with our specialists, they can supply and fit bespoke windows in London and surrounding areas. Give us a call on 020 8683 8406. Alternatively, get an instant online guide price.