Visofold Bi-fold doors fitted at a Yorkshire home

Quality Bi-Fold Doors
Made To Measure

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

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.


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Technical advisors are on hand at the aluminium window and door showroom in Keighley in West Yorkshire

Unrivalled Quality Customer Service

Our high quality window and door products are backed by the same high quality customer service. Technical advisors are just a phone call away to answer all your questions no matter how technical.

Typical help provided includes:

  • Choosing the right product
  • Getting the right made to measure size
  • Help with ordering
  • Threshold advice

We provide a FREE sample service to assist with surveying decisions, design considerations, or planning applications – just pick up the phone and ask.

Click To Call



Rated 5.0 out of 5 Nicholas Kitchen

...really helpful with all my technical queries, which helped make sure my orders were mm perfect and the doors all went in smoothly...
They look great - will do it all again in our next house!


Rated 5.0 out of 5 Dom B

Super customer service, they actually answer the phone and call back promptly if they’re not available... very helpful throughout with technical advice.
The final products, we chose Heritage doors and windows, look stunning. Thank you.


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Our Quality Bi-Folding Doors

Visofold 6000

Smart Visofold 6000 bi-fold doors

Maximum glass with super slim profiles

Open and close effortlessly

Heritage - NEW

crittal style heritage bi-fold doors

NEW - Steel style heritage bifolding doors.

Harmonises perfectly with heritage windows.

Visofold 1000

flush threshold bi-fold doors

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

Visofold 1000 is ideally suited to contemporary applications.

Integral Blinds For Bi-Fold Doors

built in integral blinds for bi-fold doors

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

The Buyers Guide To Bi-Fold Doors

guide to how to buy bi-fold doors

Read our guide to buying bi-folding doors for your home


"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

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 - flexibility to create a seamless transition from indoor to out enhancing any garden or entertaining space

Who buys bi-fold doors from Marlin Windows?

  • Homeowners who are looking for the best quality and have an eye for detail.
  • Those who like to deal with an expert manufacturer backed by expert customer service.
  • Those that want accuracy, care and attention to detail to produce high quality accurate stunning bi-fold doors.

Featured Bi Fold Door Projects:


Rated 5.0 out of 5 Malcolm Sykes

Many thanks for supplying and installing my new bi-fold doors. The guys did an excellent job today removing my old doors and then installing my new bi-fold doors. They managed to get the old doors and frame out cleanly and then installed the new doors very neatly.
All in all an excellent job well done. The new bi-fold doors look really good!


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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 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


Why Choose Marlin Windows?

We care...

about the quality of finish
about you, your project and your property
about your 100% satisfaction

And we are rated ★★★★★ on Google

need more reasons? click here

Get A Quote

"our builder said they were the best supplier and fitter they had ever used"
Mrs Nellist Haworth, Yorkshire


Call 01535 603909





Sliding Brochure