Crittall-Style External Bifold Doors

Aluminium Crittall-style bifold doors have the power to transform the way you both visualise and use your living space. These Crittall-style external doors can replace entire walls -  turning your garden into an active part of your home. With your heritage patio doors open, the flow of air, energy and light will turn your indoors and outdoors living area into one big space. And even when they're closed, these doors will easily showcase your garden at its best with uninterrupted views.

When you pick Crittall-style patio doors, you will get a set of doors that bring their own stunning looks and benifits to your interior too.

The contrast between the aluminium steel-look door frames and the large glass panels make a powerful style statement, while the system's signature slim sightlines maximise the natural light in your home.

Echoing the look of traditional black steel, our aluminium heritage doors have the same classic design and elegant lines as steel doors without the weight and are naturally corrosion resistant - suiting home decor with an ultra-modern or fashionable industrial look perfectly.

The look of traditional Crittall doors with all the advantages of modern technology

Our range of bifold Crittall-style external doors are more than just a super stylish design feature. They'll protect your home from the world outside, keeping your home safe, secure and warm.

Original steel doors have fallen out of favour as they are heavy and expensive, making them a bad choice for top hung door systems such as bifolds. But the thermally broken aluminium frames of external Crittall-style doors are much lighter and more energy efficient, combining with the toughened double glazed glass units to deliver an impressively low U value for the whole door system.

Our steel-look bifolds are a secure option for your home too. Their modern and durable aluminium profiles are strong, while the multipoint locking system will keep your patio doors firmly locked to deter intruders.

Most importantly, all of our aluminium external doors are built to maximum safety standards. The large toughened double glazed panels of our Crittall-style doors, make them up to 5 times as strong as standard glass panels.

Pair them with Crittall-style internal doors for a truly cohesive look right the way through your home.

Humble British Beginnings

Crittall doors first appeared in Essex, UK in the late 19th century. At first, they were only found in industrial and public buildings like factories and the Houses of Parliament. These types of buildings needed a lot of natural light, but making big glass panels that were safe and secure was tricky.

So, they came up with a clever solution: sturdy, yet slimline steel frames to divide and support the glass. This led to the creation of the industrial-style doors we know today.

Crittall doors were so called because of the person who invented them, Francis Henry Crittall. Thanks to his innovation, these special windows became symbols of the industrial revolution and can still be found in many commercial buildings from that era, continuing to inspire designers and architects today. And guess what? The original Crittall Windows company still makes them now.