Bi-fold patio doors can make a beautiful addition to any property, but with so many different styles and materials on the market, it’s important to choose the right bi-fold patio door for your home.

What Are Bi-Fold Doors?

Bi-fold doors are made of several panels that slide open along a track and fold up in a concertina style. Bi-fold patio doors are glazed with glass to allow light to pass through and are well-suited to both interior and exterior spaces.

bi-fold patio doors

Bi-fold patio doors are a unique solution to creating semi-permanent open plan living areas, or accessing more of your walk-in wardrobe.

External bi-fold patio doors are usually found at the back of a property, as a means of showcasing a garden in bloom, allowing more light into the property, and making better use of outside space during the summer. Bi-fold doors can vary in size, starting from just under two metres wide to over four.

How To Choose Bi-Folding Doors

Internal Bi-Fold Doors

Not just for patio use, bi-folding doors add value to other areas of the home too. Because bi-fold doors fold back on themselves, bi-fold patio doors are inherently space saving. This makes them perfect for connecting and dividing rooms within your property, without compromising on accessibility.

Enhancing natural light, they can create the illusion of a larger space from within a smaller room, owing to the visibility of larger rooms elsewhere. And when you don’t want these areas to be visible, bi-fold patio doors can also be fitted with blinds or curtains for added privacy.

bi-folding doors

External Bi-Fold Doors

If you choose to have bi-fold patio doors fitted as an external door, there are more benefits than first meets the eye. Open up your kitchen to a summer breeze and enjoy an alfresco dining experience, which can still be enjoyed even if the weather changes.

External bi-fold patio doors are also the perfect solution to making better use of your outside space. They can be folded back to reveal additional outside seating, which blends seamlessly in with the interior.

A wonderful addition to any summer party,  these doors allow you and your guests to make full use of both the internal living and external garden areas.

bi-fold patio doors

UPVC Bi-Fold Patio Doors

UPVC bi-fold patio doors require the smallest initial outlay and require little maintenance in comparison to timber framed bi-folds, as UPVC doesn’t warp or rot when exposed to the natural elements.

UPVC is available in a wide variety of colours and finishes, which means you aren’t just limited to the classic white frames.

Aluminium Bi-Fold Patio Doors

Aluminium bi-fold patio doors are more expensive in comparison to UPVC bi-fold doors, but you certainly get what you pay for.

Aluminium is an inherently strong material, which means that aluminium bi-fold patio doors often have thinner frames, but can still carry the same amount of double glazed glass as UPVC and timber bi-folds.

This gives your bi-fold doors a sleeker appearance, so aluminium bi-fold patio doors are perfect for maximising the amount of light coming into your home.

Aluminium’s strength also means that aluminium bi-fold patio doors will retain their shape much better than their UPVC or timber counterparts.

Aluminium bi-folding doors are highly durable, being able to withstand all weathers with discolouration or warping, which makes aluminium bi-folds ideal for exterior patio doors.


Timber Bi-Fold Patio Doors

Think bi-fold doors are only suited to modern builds? Think again. Timber framed bi-folding doors are the perfect addition to any period-style property.

They tend to be more frame heavy, but they still let in plenty of natural light and can be painted or stained to suit your interior.

They are perhaps the most desired in terms of appearance, however, they do require regular painting and sealing every few years to ensure the wood doesn’t warp out of shape.

Warping causes gaps and draughts to appear, so regular maintenance of timber bi-fold patio doors are a must to ensure the doors remain in good working order.

‘Engineered timber’ doors, which are made from a combination of wood, metal, and plastics, and are significantly stronger than solid timber framing.

How Much Do Bi-Fold Patio Doors Cost?

UPVC bi-fold patio doors are the most affordable option. You can expect to pay between £1,200 and £1,950 for these.

Prices for aluminium bi-fold patio doors range from £1,700 to £2,500, and at the top of the market are the bi-fold with timber frames, which can cost anywhere between £1,400 and £2,700 depending on the door’s dimensions and how many panels you have.

VAT and installation costs must also be factored in, so in total refitting a large doorway with a new bi-fold patio door costs between £4,000 to £5,000.

Installation takes less than a day, provided you already have a doorway large enough to accommodate the bi-fold door. If you don’t have this, it can be created, but keep in mind that installation will be longer, and be more expensive.

Bi-Fold Patio Doors

FAQs About Bi-fold Patio Doors

How secure are exterior bi-fold patio doors?

Bi-fold patio doors are in fact more secure than traditional French or sliding patio doors. Most bi-fold doors are fitted with a multi-point locking system, as well as an inline tracking system, which makes it harder for intruders to lift the doors out of their mechanism. Bi-fold patio doors can also be fitted with twin-point, dropbolt, childproof or keyed locking systems.

How thermally efficient are bi-fold patio doors?

Bi-fold patio doors have high thermal efficiency, so you won’t be sacrificing warmth for the sake of style if you decide to have bi-fold doors installed. Aluminium bi-fold doors are fitted with a thermal break to stop heat escaping, and timber bi-fold doors are often made with an engineered core to minimise heat loss. It is also recommended that external bi-fold patio doors are fitted with double glazed glass to further improve thermal efficiency.

Do I have to open fold back all the panels every time I need access?

No, often you can fold just one panel back for everyday use. This is known as a traffic door. Bi-folds commonly slide in pairs, and in the case of an uneven number of panels, one can be used in a similar way to a traditional hinged door.

How does installing bi-fold patio doors affect my property’s resale value?

Installing bi-fold patio doors can not only allow more light into your home, but they can also be a stylish way of creating an open-plan space, both in and outside the house. External bi-fold patio doors can also frame a well-tended garden or patio area beautifully, and become a desirable feature that potential buyers are looking for.

Bi-Folding Doors

Bi-Fold Door Prices

Get instant online prices for bi-fold patio doors using our online quote calculator. It’s easy to use and provides you with a double glazed front door cost within minutes.

At Double Glazing On The Web we have a wide network of local, recommended companies. We can put you in touch with trusted installers in your area for a free, no obligation quotation.

Compare bi-fold door products and costs now to get the very best deal for you.

Frequently Asked Double Glazing Questions

Frequently Asked Double Glazing Questions

Can Double Glazed Doors be Fitted with a Pet Flap?

Depending on the style of door, a pet flap can be fitted as an extra service. The only exception is when glass panels feature on the lower half of the door.

How Much Do Doors Cost?

Your double glazed door cost will depend on specifications such as style, size, locks, glazing and door furniture. Double Glazing on The Web gives you the opportunity to create your very own unique door quote online. Start your free door quote today.

What Does UPVC Stand For?

UPVC is an abbreviation for unplasticised polyvinyl chloride which is used in window frames.

How Long Do Aluminium Windows Last?

Aluminium windows have a long life span and should last about 20-30 years. Any type of window will require some maintenance but overall aluminium windows are extremely strong and durable.

What Colours Do Aluminium Windows Come in?

There is an infinite range of aluminium colours available for your windows and doors. The aluminium RAL colour chart consists of virtually any colour you could think of, allowing you to achieve the perfect look for your home.

What Are U-Values?

A U-value measures how effective a window or door is as an insulator of heat. The lower the U-values the more energy efficient the aluminium window or door is.

Which Bi-folding Door Configuration is Best?

When choosing the arrangement of your bi-folding doors you need to consider the size and layout of your room. Outfolding bi-fold doors will take up less internal space when completely folded back and a left of right folding will be dependent on space available in your room.

How Long Does It Take To Install Bi-Fold Doors?

If a survey is scheduled within 48hrs then your bi-fold doors can be supplied and installed within just 6 – 8 weeks.

How Secure Are Bi-Folding Doors?

Bi-folding doors are extremely secure and are built with a high security locks as standard. Each of our double glazing installers will offer their own range of locking systems with additional upgrade options for all security conscious homeowners.

Are uPVC Doors Easy To Maintain?

uPVC doors are extremely easy to maintain and will never require re-painting or varnishing. Neither will a uPVC door rot or warp!

What Are Composite Doors Made Of?

Composite doors are made of a combination of high performing materials which is why they are so strong and incredibly long lasting. The composite door is made from: reinforced UPVC, fibreglass skin, high density foam and a water resistant composite materials.

Do Composite Doors Fade?

Composite doors feature a tough and durable skin where colour runs throughout rather than a simple surface coating. This means a composite door is not likely to wear or fade like the majority of painted doors. A composite door is very long lasting which also reduces the amount of maintenance required to keep it looking in top condition.

Do Composite Doors Need Painting?

Composite doors do not require re-painting. These low maintenance doors feature a water resistant GRP, coloured skin which keeps a pristine appearance year after year.

Do Composite Doors Warp?

A composite door will not warp like wood and won't require regular painting.

Can I Get Composite Side Panels?

Composite doors are available with matching composite side panels, your installer will offer you a choice of colours and glazing.

Is Every Composite Door Different?

There are different qualities to every composite door and they will vary between manufacturers depending on materials used. At Double Glazing on The Web we only put you in touch with the highest quality suppliers and installers.

What Do Stable Doors Look Like?

These country style doors offer charming aesthetics and are a stylish alternative to standard back doors, stable doors a great choice for any kind of property. This door is split in two halves which open independently from one another as well as function as a whole. Whether you are after a traditional stable door or more contemporary design with modern glazing, your double glazing installer will be able to offer you a wide range of options for your property.

Are UPVC Stable Doors Made To Measure?

Your UPVC stable door will be made to measure and tailored to your specifications given to your double glazing installer.

How Much Do UPVC French Doors Cost?

UPVC French door prices will depend on your personal requirements and specifications such as size, style and glazing. To get an average French doors cost use our door cost calculator for a free online quote.

Are UPVC Patio Doors Secure?

UPVC patio doors can be fitted with a choice of high security locks to make them extra secure. You can also choose from a range of glazing styles to further enhance the strength of your patio doors.

Do I Need Planning Permission For Patio Doors?

You may require planning permission for double glazed patio doors if you have a listed building or happen to live within a conservation area. Visit the V for more information.

How Do Sliding Patio Doors Work?

UPVC sliding doors operate on a smooth, easy glide system which allows for effortless transition. They are attached to metal or vinyl tracks which are fitted to the top and bottom frames and plastic rollers are added to ease the movement.

How Do Slide and Swing Doors Operate?

A multi-pane door with individual panes slides on a single track with no loss of space. Panes are able to operate individually with no visible hinges or hardware. The slide and swing door can open up spaces between rooms or between home and garden or even conservatory.

How Much Do Aluminium French Doors Cost?

Unfortunately our online quoting engine does not quote for aluminium however you can get a price by calling one of our advisors on: 0800 015 5679. Or alternatively, you can contact us using our online enquiry form.

Bi-Fold Door Prices