Bifold Windows in the UK: Costs, Types, & Benefits

Bifold windows imbue the home with a wide, adaptable opening that can let in natural sunlight while also folding into the side. These windows can offer a stylish opening that serves as a great patio entrance or exit to the outdoors. Despite the cost, many homeowners find these windows worth it for their aesthetically pleasing look.

This page will go over the costs, various types, and numerous benefits of bifold windows so you can decide whether they are meant for your home.

That said, while this page provides some prices for windows, we can only give you estimates. Every home is different, which is why it’s important to have it assessed by an installer. However, finding one you can trust is a hassle, requiring hours of research and calling up companies. So, why not let us do the heavy lifting?

Our service can provide you with up to 4 free, non-binding quotes from the best installers in your area. Click the button below, fill out a short form, and we’ll do the rest.

Bifold windows fold into one side, cascading together to create a wide entryway. They are often used as a patio attachment, providing a broad view of the outdoors with great ventilation and lighting. Design-wise, they overlap with horizontal servery windows and are usually incorporated either into outdoor entrances or indoor spaces like a pass-through window in a kitchen.

Bifold windows can be a great way to increase ventilation without needing a window with a long arc for an opening. As it can fold to the side, it will be more effective for saving space, as it collapses into a thinner, compact form when opened. Similar to a sliding door, this minimises the space taken by the frame itself, while also allowing for large window panes.

Small bifold windows can have 2 panels that fold into each other neatly, while larger bifold windows or doors will have multiple panes that fold together, requiring numerous door hinges. These multi-panel bifolds converge into each other like an accordion or fold-up map.

The cost of bifold windows can vary between £900 and £4,200, with an average cost between £1,200 and £2,000.

Factors that affect bifold door prices include:

Bifold windows can be top-hung or bottom-hung, which decides where the weight of the frame will be distributed. While both types open horizontally, top-hung windows will place the rolling mechanism and track that folds them at the top, while the bottom-hung ones put it below. There is no notable difference between the two in terms of price, but they do have other differences.

Top-hung bifold windows will put more weight on the frame without the help of the ground, which means they need a thicker support beam above. They are more prone to breakage, but have their advantages as well. They are less likely to get debris that can fall into the lower tracks of a bottom-hung design, which makes cleaning less important.

Whether a top-hung or bottom-hung window is right for you will depend on the beams and frames you either already have or want installed. An installation may not work for every type of home, which is why it's best to hire a professional who knows what they are doing. However, finding one is a chore that takes hours and may still not guarantee good service. That’s why our service uses vetted professionals to give you the best prices.

Fill out a quick 30-second form, and we’ll provide you with up to 4 free, non-binding quotes from the best installers in your area. Click the button below to get started.

Bifold windows in the UK come with double glazing as standard. You can also opt for triple glazed bifold windows, but they will cost 30% to 50% more. Secondary glazing in the UK can be much cheaper but will also be less effective, which may not reduce your heating costs much.

Triple glazing windows is only recommended for extremely cold areas in the UK, such as the far North. Otherwise, it may not provide the maximum benefit compared to its cost.

If you have single glazed bifold windows and are looking to upgrade, you may be eligible for one of the window grants available from the government. While these grants will not ensure new frames, double glazing in the UK and Northern Ireland, depending on the program. For other types of glazing, you can probably decrease costs by also applying for finance for windows.

Bifold windows can be a great addition to a patio or pass-through window frame. They provide a wider space for ventilation and can incorporate large glass panes that bring in loads of light even when unopened. Their folding mechanism saves space where a window of the same size might need a long radius to open traditionally.

Much like sash windows, they can be great for rooms with a lot of furniture near the frame, where opening them in a traditional turn would cause issues. However, unlike most sash windows, they can come with a much larger diameter, allowing them to maximise airflow.

While they can be more costly, they have a distinct aesthetic appeal that makes them worth it. They are ideal for wide entrances or for rooms that require the extra space and ventilation, such as a kitchen counter pass-through space.

Installing a bifold window can still be a costly venture. If you’re wondering exactly how much it might set you back, you’ll need a trustworthy installer with the skills to install one. Sadly, finding a good professional who won’t stiff you on the bill can be a laborious task that takes hours. That’s where our service can save you both time and money.

All you need to do is fill out a 30-second form, and we’ll respond with up to 4 free, non-binding quotes from the best professionals in your area. Click the button below to get started.