Aluminium Bi-fold doors are the preferred option to transform a living space.

Give yourself versatility and flexibility to 'open up' or 'go big'.

Choose and change the size and feel of your rooms as you please with sliding bi-fold aluminium doors.

Rated 5.0 out of 5 Tony Bedford - May 2018
Had all our windows replaced with aluminum including 2 sets of bi-folds. It took a number of visits to the factory to meet with Adrian and Hannah who were both very patient and helped us choose the correct lay out and colour. Very pleased with the result. Their fitters Peter and Ryan were also good to work with. Highly recommended.
Read this and other Reviews of Marlin Windows left on Google

See some of our recent aluminium bifold door projects:
(or scroll down for aluminium bifold door systems)


Our low profile superslim frame low threshold bi-fold doors featured on
Love Your Home & Garden With Alan Titchmarsh (Swindon episode)
broadcast on ITV on January 15th 2019

Watch the full episode on catchup or here


Watch the programme highlights in less than 2 minutes below

"it's like a dream home" says homeowner Nina
"So easy to open" says Alan
"so slim and so elegant, barely any step we're talking millimetres" says architect Ewald Van Der Straeten


"We are very happy customers!..
thank you for such a professional and spectacular installation...
Installed bifold doors with meticulous planning and precision."

Helen Nellist, Haworth near Keighley

Smart Visofold 6000

7 reasons to choose the Smart Visofold 6000 bi-fold door

Smart visolfold 6000 slide or stack and fold doors
  1. Super slim profiles - which means you get maximum glass areas and narrow sight lines.
  2. Internally or externally folding sashes, which when open, sit flush to the frame.
  3. Smooth and easy operation - open or close your bifold doors effortlessly.
  4. Unimpeded easy access with low threshold door custom design option - for fabulous seamless floor level appearance and wheelchair access.
  5. Rebated threshold option - for ultimate weather resistance.
  6. Highest quality fittings - which means maximum safety and maximum security.
  7. Fully compliant with latest building regulations.

Read more


Smart visolfold 1000 slide and fold doors

Smart Visofold 1000

Our most popular bi-fold door offers slimline profiles and reduced sightlines.

Visofold 1000 is ideally suited to contemporary applications.

This aluminium bi-fold door slides and folds.

Read more

Smart visolfold 2000 slide and fold doors

Smart Visofold 2000

Designed for use on residential, retail or commercial applications such as restaurants, bars, or shops.

A bi-folding door that folds and slides.

Read more

integral built in blinds for bi-fold doors

Integral Blinds For Bi-Fold Doors


All bi-fold doors can be fitted with built in integral blinds

Read more

Smart visolfold 3000 slide and fold doors

Smart Visofold 3000

Elegant slim sightlines with attractively styled round-edge profiles and highly engineered robust hinges. This aluminium bi-folding door slides and folds.

Read more

Smart visolfold 4000 slide and fold doors

Smart Visofold 4000

Robust slide folding doors suitable for use in commercial applications where heavy and frequent usage is expected. Slides and folds.

Read more

Aluminium Bi-fold doors are the favoured choice to transform a living space.

  • Transform your light - a wall of glazing to brighten any room
  • Transform your space - bi-folding doors makes a room feel bigger
  • Transform your home or business - flexibility to create a seamless transition from indoor to out enhancing any garden, entertaining space or commercial opportunity

Who buys bi-fold doors from Marlin Windows?

  • Homeowners and businesses that are looking for the best quality and have an eye for detail.
  • Those that like to deal with an expert manufacturer. All our bi-fold doors are made to measure by us using our knowledge and expertise in ensuring the best quality results for each installation
  • Those that want accuracy, care and attention to detail to produce high quality accurate stunning bi-fold doors.


See our Reynaers at Home sliding folding doors

Watch the 30 second video.

Reynaers CF 68 Aluminium slide and fold doors

Reynaers CF 68 Bifolding doors

The new CF 68 Bifolding door is a versatile folding door solution that allows up to seven panels to fold in 38 possible configurations.

Open in or open out options are available along with four different threshold options to accommodate all floor finishes.

Read more

Reynaers CF 77 Aluminium slide and fold doors

Reynaers CF 77 Bifolding doors

The CF 77 bifolding door system is designed specifically to accommodate larger panel sizes.

For the most visually dramatic appearance, the CF 77 bifold door is the ultimate solution for larger openings.

Read more

Sliding Brochure