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 I Choose Custom Glass?

You can choose from a wide range of custom glass. Your double glazing installer will offer you a choice of glass types and glazing designs so you can choose custom glass for your windows, doors or conservatory.

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!

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.

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.

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.

Bi-Fold Door Prices