Internal Bifold Doors

Internal bifold doors and folding room dividers add flexibility to your home. Installing internal bifolding doors will allow you to create open space living, or cosy and private rooms, whenever you require. Bi folds are available in a range of designs to suite all tastes, and are one of the most affordable home improvements.

Bifold Internal Doors

Internal bifold doors are a popular home improvement in the UK. Not only do bifolding doors open up your living space and allow light to flow throughout your home, but they can also enable you to create smaller cosy rooms when needed. They are a popular choice due to affordable installation prices, and the value they add to a property.

In this guide, we will explore everything you need to know about internal bifold doors. There is information on prices, types and you can even check how much local installation will cost you.

Bifold Doors UK

Compare Internal Bifold Door Prices

Are you looking to install internal bifold doors, folding doors or concertina doors? We can help you find a great deal by comparing local installation prices. To find out how much bifold door installation costs in your area, simply use the cost calculator below.

Did you know…

By comparing prices or requesting a quote, you help us raise £5 for an amazing charity. There is no cost to you, and there is no obligation to proceed. So, what are you waiting for? Find out how much interior bi folding doors cost in your area.

Cost of Bi Fold Internal Doors

Installing folding doors is one of the most affordable home improvements, but how much do internal bifold doors cost? Below we will look as the costs of bifolding doors, and the factors that impact on pricing.

Below are the main cost factors that can impact the cost of bifolding doors:

  • Materials – there are a number of different materials used to make internal bifold doors. Common materials can include wood, glass, aluminium and UPVC. This impacts the final cost, as oak costs more than painted pine doors, and double glazed glass panels will cost more than single glazed.
  • Size – the size of your doors is likely to be one of the biggest factors in the cost of internal bifold doors. As you would expect, larger doors will cost more than smaller doors. Internal bifold doors are normally pre-fabricated, however if you need a specific size custom made, this will increase costs.
  • Location – as with almost all home improvements, the cost of installation is likely to differ in different parts of the UK. Generally, the most expensive prices are found in London and the South of England. Areas that lack local installers will also result in higher installation costs.
  • Preparation – it is important to consider any preparation and building work that may be required as part of your bifold installation. For example, do you want to knock through a wall and then install the bifolds?

Internal Bifold Door Prices

The cost of internal bifold doors normally ranges from approximately £600 to £1500. If you require larger sizes, custom designs or deluxe doors, prices can increase to several thousand pounds. For small 2-panel folding doors, to suit a standard door width, prices can be as cheap as £70.

If you are looking for a professional to do all the hard work, the cost of installation will generally range from £200 to £400 to fit bifolds to an existing opening. If the fitter needs to create knock through a wall to install the internal doors, you can expect to pay an additional £250 to £600 for non-load bearing walls, and £1200 to £3000 for a load bearing walls.

If you are an experienced DIY’er, you may want to tackle the installation yourself, and keep costs to a minimum.

Check Internal Bifold Prices from Local Suppliers & Fitters!

Job DescriptionCost (estimate)
1m Internal Bifold Door Supply & Fit£500
1m Internal Bifold Supply & Fit plus knock through wall£750
1m Internal Bifold Supply & Fit plus knock through load-bearing wall£1300
2m Internal Bifold Door Supply & Fit£900
2m Internal Bifold Supply & Fit plus knock through wall£1100
2m Internal Bifold Supply & Fit plus knock through load-bearing wall£1700

External vs Internal Bifold Door Prices

Internal doors are often cheaper than external patio bifold doors for a number of reasons. The main reasons are often down to weather proofing, and glazing of the glass. Installation is also often cheaper, as internal walls are normally easier to knock through and support.

Internal Bifold Installation

With prices from as little as £500 and fast installation speeds, internal bifold doors can quickly transform your home into a more usable and livable place. For a low budget home improvement that can quickly transform your home, don’t overlook interior bifolds.

Supply & Fit Internal Bifold Doors

As well as dedicated fitters, many builder and joiners also provide bifold installation services. In most cases, dedicated installers will provide a faster install, but for more extensive work, builders and joiners may be able to provide a better price.

How long will an installation take?

In most cases, installing new bifold internal doors will take less than a day. If you require a wall to be knocked through, this will add approximately 1 day for non-loading bearing walls and 1.5 days for load bearing walls.

Types of Bifold Internal Door

Interior bi folding doors are available in a wide range of different styles, colours, layouts and finishes. Below are some of the most common types of bifold internal doors:

  • Wooden Bifolds – Wood is a common choice, and is one of the most attractive types of bifold available. Wooden doors can be stained in a choice of different colours, bevelled and are also commonly painted, ensuring they suit your homes style. The main wooden bifold types are:
    • Oak Bifolds
    • Painted Timber Bifolds
    • Veneer Bifolds
  • UPVC Bifolds – Plastic is a favourable choice due to the ease of cleaning and affordability. There is an extensive choice of colours, including white, black, grey and even faux timber.
  • Aluminium Bifolds – More common on exterior patio doors, aluminium is a type of bifold that can also be used inside. They are durable, available in a range of colours and lightweight.
  • Bifolds with Glass – Glass panels are a common feature of internal folding doors. This allows light to pass deep within your home, even when closed. As well as plain clear glass, many bifolds are also available with frosted and even stained glass.

Looking for Local Internal Bifold Door Suppliers & Fitters?

Internal Folding Doors

There are a number of benefits of installing folding internal doors. One of the most popular reasons for installing internal folding doors is the flexibility they add to your property. They enable you to open up your home, providing attractive open plan living. However, when you need to create private rooms, or simply want to make your home more cosy, the interior doors can be closed.

Will folding doors add value to my home?

If you interested in a cheap and effective way to modernise your home, internal folding doors should be on your list. Due to their popularity, suppliers now manufacture a wide range of different designs to suite all tastes and purposes. Adding bifolding doors to your home will certainly improve appeal and help increase property values.

Internal Concertina Doors

Concertina doors are ideal for a range of different purposes, from closing off internal doors where a traditional door won’t fit, or even as wardrobe doors. The slim design of corcertinering doors enables them to open and close with a minimal footprint.

Is there a difference between concertina and internal bifold doors?

Technically, bifold doors are simply a type of concertina door. The words can be used interchangeably, however internal bifolds are often considered as having larger panels, whilst many consumers refer to smaller panelled doors as concertina doors. Below are some sample images that demonstrate the different panel sizes.

Bifold Doors

Internal French Folding Doors Bedroom

Concertina Doors

Oak Concertina Doors with Glass Panel

French Folding Doors

Internal French folding doors work slightly different to traditional interior bifold doors. As demonstrated in the image below, the outer panels can be locked in place, whilst the middle doors can be opened and closed independently. To open up the space, the panels can be unlocked and used as a normal concertina door.

French Folding Doors

4 Panel Internal Bifold Door with Glass

Internal Bifold Door Sizes

Internal folding doors are normally available in prefabricated sizes. In most cases, the available internal bifold door sizes should fit nicely in your space. Additional panels can be added (or taken away) to change the size of your doors to suit your needs.

As a result of prefabrication, the standard doors may not always fit your space. In these cases, you have two options; 1. Change the size of your space for the doors. 2. Use custom made doors. Depending on your requirements, the cheapest option varies between the two options.

Money Saving Tips

We love helping UK consumers save more on their purchases. To ensure you receive the cheapest supply and fit deals, we have put together some helpful tips and tricks.

  • Compare Bifold Prices

    One of the best ways to ensure you are receiving a great value for money internal bifold door installation is by comparing prices. With our bifold price estimator, it only takes a moment to fill in your requirements and work out the best deal for you.

  • Combine Home Improvements

    Internal folding door installation is often undertaken as part of a larger home improvement project. If you are having other projects carried out, it will often be cheaper to use the same company to carry out the work as one larger project. However, this should be used for similar type projects, such as combining bifold fitting and knocking through a wall.

  • Look for Sales

    If you are looking to do a DIY bifold installation, you can save big by purchasing your internal bifolding doors during a sale. In some cases, savings can be more than 40% off the retail price. Have a look on the social media pages for UK bi fold suppliers.

  • Promo & Discount Codes

    Promo codes for internal bifold door installation, really? Yes, you may be surprised that many installers have promo codes and deals that can help you save on the cost of your fitting. We recommend you find local suppliers first, then check to see if they have any discount codes available.

  • Ask for a Discount!

    Getting a better deal on bifolding internal doors can be as easy as asking for a better price. This is an extremely easy, fast and simple money saving tip. And, it actually works more often than you might think. The home improvement industry is very competitive, and many suppliers and fitters will be willing to provide a further discount to secure your business.

  • Concession Discounts

    If you are an OAP, work in certain industries (army, NHS, etc.) or hold another concession, you may be able to receive a discounted rate from your bi fold fitter. Not every supplier will provide discounts, but quite a few smaller installers provide a discount to certain concession holders.

Looking for Local Internal Bifold Door Suppliers & Fitters?

Internal Bifold Door Ideas & Gallery

Choosing the right doors for your home is an important decision. To help provide some inspiration and demonstrate the different interior folding door options available, we have put together a gallery of images. If you are thinking of installing bifolds, these images will provide some ideas of the different types, so you can choose the right doors for your home.

Frequently Asked Questions

Below are a few questions our visitors regularly ask about interior bifolding doors. Our answers below will hopefully help you, but if we have missed anything, please get in touch.

Adding windows and doors to a property is normally considered a permitted development, so planning permission is not generally required. However, there are some exceptions, such as properties in conservation zones, but these rules normally relate to exterior modifications. For interior bifold doors, planning permission shouldn’t be required. If you have any doubts, it is a good idea to contact your local council authority or Planning Portal for clarification.

Internal bifolding doors can be installed as a DIY project, and most suppliers provide detailed instructions to guide you through the process. However, there can be some challenges and some of the work may be complex. It is best left to an experience DIY’er to ensure the doors are safely installed.

You will also need to consider the work involved in knocking through a door, if required. For load bearing wall work, we recommend always using a professional builder and surveyor to ensure the work is carried out to the correct standards.

Installing internal bifold doors is a quick process, so you will not need to move out. If you require a door to be knocked through, the work will take slightly longer. This can be a dusty process, but will generally only take a day or so, and you should be able to remain in your home whilst the work is carried out.

For basic bifold interior door installations, there are no specific qualifications that an installer must have. Builders and joiners should have the experience and knowledge to adequately fit bifolds, and also carry out any non load bearing wall knock through work.

If you require a load bearing wall to be knocked through, a structural engineer or surveyor can be used. They will determine the strength beam required to support the load above, and ensure your home is safe.

If your fitter is taking away waste (either old doors or construction waste from a wall knock through), they should have a waste carriers licence.

Asking questions is a great way to better understand potential installers. Below are a few questions that you can ask potential installers to gain a better understanding of their experience and services.

  1. How long have you been installing bifolds?
  2. Do you have any example photos of your previous work?
  3. Can you provide testimonials or references?
  4. Do you have public liability insurance?
  5. How long will the installation take?
  6. Do you supply everything needed for the project?
  7. Are there any additional costs I should be aware of?
  8. Does your pricing include VAT?
  9. Will you take away any rubbish?
  10. Do you provide any discounts of concessions?

Other Considerations

Advantages
  • Opens up your home, allowing light to flood throughout.
  • Adds versatility, as you are able to change the configuration of your rooms within a few moments, to suit your needs.
  • Can increase the value of your property.
  • Colours and styles available for all tastes.
  • Can be a very cheap home improvement if you use prefabricated doors that fit your current space.
Disadvantages
  • Can be costly if load bearing wall needs to be knocked through.
  • Knocking through a wall can create a lot of dust throughout your home during the demolition.
  • Prefabricated sizes may not fit in your available space, which can increase costs.

If you are hiring a professional to install your bi fold internal doors, they should provide a warranty for their workmanship. In most cases, a warranty will last for between 12-months to 3 years. A warranty will provide peace of mind that if anything was to go wrong, your doors will be quickly fixed.

Whilst there aren’t any specific qualifications that are required for a bifold door installation, it is a good idea to always ensure your chosen installer has public liability insurance. This is an insurance that will protect you and your home if something was to go wrong during the building.

You can request a copy of your builders PLI certificate, which they should be able to email or print for you.

Did you know?
When you compare bifold door prices or request a quote, you help us raise £5 for an amazing charity. There is no cost to you, and there is no obligation to proceed. Find amazing deals and cost estimates, and help a charity at the same time.
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