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Are you thinking about replacing your old sash windows? Are they ageing and not isolating your home well enough?


You don’t want to lose the charming timber look and might be worried it will be a costly investment. It’s understandable that making that kind of decision is challenging,but we’ll do all we can to help you decide.


Sash windows provide plenty of advantages to your house, so it’s definitely worth considering them. We provide all the necessary answers to your questions and explain what exactly sash windows are, how to use them, and what their history is.


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What are sash windows?

Sash windows are quite simple in their structure. They consist of two frames that slide vertically allowing the window to open. A sash is a frame that keeps both pieces of the windows together and lets the glass move. Very often, it’s composed of multiple square panels called lights. However, nowadays it’s common to see windows with a single pane of glass.


There are two sashes on a vertical frame, one in front of the other. Double-hung windows are the ones where both sashes can move up and down. Single-hung windows are those in which only one sash moves and it’s always the bottom one.

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..are made of wood but in recent years uPVC windows are becoming more popular due to lower costs and easy maintenance.


UPVC windows are better than traditional sash windows when it comes to insulation, energy efficiency and maintenance. They are mostly double-glazed. The newest sealed unit technology raises the security of them and two panes of glass are laminated or toughened and separated by a spacer, and sealed.


If you want to retain the vintage look of the traditional timber sash windows, you can find many uPVC windows that maintain this through vintage-looking handles and locks. You can choose from a wide selection of colours, your windows don’t have to be white.


If you are living in a conservatory area or listed building, sash windows can be your only choice. Moreover, you might need to check if you need planning permission.


The very first sash windows were developed in the mid-late 17th century. They were mostly popular in the Georgian and Victorian era.


Georgian windows type is “six over six” with six lights (square panels of glass) in each sash, two rows of three each. They are usually single-hung and only one of the two sashes move.



Victorian windows changed a bit thanks to new technologies that allowed for larger panes. They had a few lights in the upper part and one or two in the bottom one.

How to use them?

Sash windows can be opened by sliding up one of two sashes. If the window is single-hung, only the bottom part will move up and down.


If it’s double-hung, you can open the upper part as well or have both open at the same time to allow a better circulation of air.

Choosing our windows is the best decision

We provide bespoke sash windows in London and areas such as Harrow or Ealing. We have 10 years of experience and we combined traditional looks and the latest technologies. We do our best to ensure customer satisfaction and we guarantee you’ll be happy with your choice. 

Moreover, we help with installation as it’s a very important aspect of a new purchase. Improperly installed windows can create a threat for you, they can damage your house and won’t provide proper insulation and efficiency. Our highly trained professionals will be happy to take care of the whole process so that you don’t have to worry about anything. Correctly placed windows will guarantee complete functionality and security so that you can rest easy and enjoy your home to the fullest.

If you are thinking about new sash windows or have any questions we didn’t answer in our description, feel free to contact us. We’ll happily help you and make sure you are fully satisfied. We’ll guide you step by step through purchase and installation so that you can be worry-free.

  • Do sash windows open inwards or outwards?
    Usually, they only move up and down because the frame - sash - allows only vertical moves. However, many modern manufacturers make windows that tilt inwards to make cleaning easier.
  • What is the cost of sash windows and what does it depend on?
    The cost depends on the construction and size of your windows, glazing, the area you live in and the age of your house. If you choose uPVC windows, the prices are 40% lower than those of timber ones. We make sure our prices are attractive for everyone but to tell the exact price we need to consult all the requirements with you.
  • What materials are sash windows made of?
    Traditional sash windows are made of wood. Nowadays, you can choose timber frames as well. However, uPVC windows are more popular due to lower costs and easier maintenance. uPVC windows consist of plastic frames, double-glazed glass with a layer of air trapped between 2 panes of glass (argon, krypton or xenon). Because of that, the heat is kept inside the house, the noise is isolated and the security is much higher.
  • What buildings and rooms are sash windows best for?
    Sash windows look good in older and modern buildings equally. We can help you match the style to your house no matter if you’re looking for something vintage or contemporary. The sash windows are perfect for every room.
  • What are the advantages of sash windows?
    Sash windows have great insulation, which helps you save money on energy bills so you can be sure you’ll be warm in the winter. uPVC is a low-maintenance material and it’s really easy to clean. They are also eco-friendly since they’re recyclable and considering the fact that you’ll use less energy, you will produce less carbon. They are very durable - we use only top-quality materials and you can be sure your windows will last 20 or even 30 years. Additionally, you can choose from different styles and colours and make your sash windows look unique.


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