uPVC Sash Windows – Benefits & Disadvantages


Of course, there is a range of choice when it comes to choosing the types of windows for your house, with considerations stretching from style and design to cost and usage.

In this article we’ll take a quick look at the pros and cons of uPVC sash windows.

uPVC Sash windows are a traditional form of window that is still popular in the UK.

The term “sash” refers to the two parts of the window that slide to open or close.

Traditionally, these windows had hinges set vertically so they opened outwards from the centre.

Modern sashes have hinges at the top near the sides of the window to make them easier to use.

Whilst sash windows can be made from wood or aluminum, uPVC plastic is the most common as it is more durable than other materials.

They offer many benefits including improved sound insulation and lower cost compared to replacement options such as new double glazed units.

Benefits of uPVC Sash Windows

There are many benefits to sash windows, with a variety of features that make them an excellent choice for homeowners.


Homeowners with children may find these properties very appealing – they are quieter during nighttime hours when children’s bedroom light switch on lights next door disrupt sleep patterns in neighbouring rooms.


Many people think that all windows are the same, but there are some key differences.

One of these is ventilation.

uPVC sash windows allow air to flow in and out of your home without letting any cold air come in. This can be important for those who live in colder climates- or for anyone who wants to keep their energy bills low!


Sash windows generally have lower installation costs compared to new double glazed units.

Disadvantages to uPVC sash Windows

The disadvantages are few but important.

Cold air

Whilst the ventilation on sash windows works well, they are more prone to let the cold air in more easily when opening.


Due to their design, it’s possible for someone’s fingers to get caught so it requires more space than regular window designs – such as sliding doors- which opens outwards and leaves unrestricted access for people with mobility problems.

Matt James

Matt James

Hi, Matt here! I started out almost 20 years ago as a teenager working in the family business fitting doors, windows and conservatories. I now run this website to share the best tips and advice for anyone looking to get a good deal on double glazing.