Aluminium Bi-Fold Doors

Aluminium bi-fold doors from the experts in Thame

Key Features

SMARTS & ORIGIN systems available with a range of designs from standard and slimline to our concealed hinge design

Fully customisable glazing from standard to high security, acoustic and solar options

Standard colour finishes to full RAL colour range to choose from, over 220 shades

All high-security multi-point locking mechanisms as standard with police backed Secure by Design and PAS:24 enhanced security available

Highly insulated systems using the most modern thermally broken profiles to ensure high thermal performances and all finished in a top specification polyester powder coated finish

If you want to make a statement in your property Bi-Fold doors can provide the answer. With their 90% clear opening capability, they will open up rooms to light and space enabling you to bring the outside in or make a standard floor plan become open plan with the ease of one slide, creating a functional open space for living, working and entertaining.

Windmill Windows are proud to be registered installers for both ORIGIN and SMARTS Bi-folding Doors. The ORIGIN doors offer two designs, their standard sightline door and the new slimline version. SMARTS offer three designs with the standard sightline version, the slimline version and also the concealed hinge door.

Both systems come with a high quality polyester powder coated finish and high performance polyamide thermal breaks as standard. With a full array of furniture, glazing and threshold options, there will be a combination there to suit what you are looking for.

Our leading products

SMARTS Bi-Folds

SMARTS offer three designs : The Standard, The Slim Line and The Concealed Hinge to suit whatever look you are trying to achieve. The standard and slimline sightline doors are great doors providing a high specification door with a robust stainless steel running system whilst the concealed hinge door, patented by our fabricators, provides the cleanest finish on the market with all the hinges being hidden inside the frame when the doors are closed. With over 35 years experience, SMARTS have stood the test of time and continue to provide a high end yet affordable door system with clean and pleasing aesthetics.

ORIGIN Bi-Folds

ORIGIN offer two systems: The Standard and The Slimline. Both doors are fabricated to the highest of standards and incorporate unique features such as finger safe Q-Lon gaskets to the door sashes as opposed to normal rubber gaskets. The added bespoke finishing options such as colour coded gaskets and woodgrain finish options really make these doors stand out for when trying to tweak the doors to your exacting needs.

Having placed themselves in the market to deliver a very high specification door along with super fast turnarounds, ORIGIN bifold doors have quickly become one of the UK’s market leaders.

Brochure: ORIGIN Bi-Fold Doors Brochure: SMARTS Bi-Folding Doors

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Explore our gallery

You can explore our gallery below and see for yourself our range of high-quality Aluminium Bi-Fold Doors. We take the high standards of our work seriously; our past projects speak for themselves!

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What our customers say

When it comes to customer satisfaction, Windmill Windows are proud of our excellent reputation. With a professional and friendly outlook, we make sure every customer is happy on completion. Take a look at our testimonials below.

"A professional and knowledgeable company who fitted sliding aluminium doors in a morning - fantastic results at a competitive price! The fitters were friendly and efficient and the finish was immaculate and I would recommend Windmill Windows to anyone!"

Long Crendon