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Friendly, reliable and easy to deal with

Bi Fold Sliding Patio Doors

Flexible Bi-Fold Doors

Our elegant, panoramic bi-folding doors add a real ‘wow’ factor to any home or commercial premises, and allow you to seamlessly connect outdoor and indoor spaces. Available in a range of finishes and opening configurations, our bi-fold glass doors are becoming increasingly popular in order to create light open spaces with modern appeal. 

The UPVC version is generally better suited to domestic applications, while the aluminium version is perfect for commercial, or heavy traffic applications. There are a selection of exterior French doors in both UPVC and aluminium, and when you’re looking at sliding patio doors, you’re sure to find one that will be ideal in your home.

Bi-Folding Patio Doors

Our bi-folding door system enables you to choose the perfect opening configuration to suit any lifestyle. With two to seven pane options available, the versatility of the system means that with a two pane door you get both a single opening door and the option to fold both doors to one side. The seven pane door offers a single opening door, double opening door, and the option to stack and slide to the left, the right or both sides.
In addition to versatility, our bi-folding doors offer high thermal performance through advanced glazing systems, which include warm edge spacer bar and argon gas within the chamber of the glass. Security has not been forgotten either, as these doors benefit from easy-to-use stainless steel multi-point locking and shoot bolts that engage into the steel track. Our bi-folding doors ensure both warmth and security.    
At Mark Robbins Improvements LTD, we’re proud to be one of the most reliable folding and sliding door companies, and we supply some of the most gorgeous bi-fold doors UK wide. Our folding patio doors are installed by efficient and reliable professionals, and so when you order bi-fold patio doors from us, you’re sure to receive fantastic service. 
Friendly, Reliable, and easy to deal with, We offer honest transparent advice and a zero pressure personal service.
We are the home improvement company with a difference and focus on exceeding expectations and establishing good long term relationships with our clients.
We offer the highest quality products, and considering our levels of service, and meticulous installation process our prices are kept very competitive.
Locally manufactured windows and conservatories, manufactured to the highest quality, in state of the art, Somerset based factories.
We only install conservatory roof and frame systems that are designed to be coupled together, resulting in a well-designed hassle free conservatory

bifold inside


  • Market-leading looks – Ultra-slim frames for a larger glazed area to create maximum space and natural light
  • Easy-use unique D-handle – this ultra-stylish sprung design allows the doors to fold back flatter, creating unimpeded views onto the garden or patio area.
  • Enhanced safety – A discreet lever on the D-handle prevents the security shoot bolts from accidentally engaging when the door is open – stopping damage to your floor coverings and your door.
  • Perfectly secure - Total security is achieved without compromising on looks thanks to fully concealed stainless steel anti-jemmy pins that prevent the doors being leveraged from the outside by intruders.
  • Choice of colours  – 11 frame colours to suit every style of property means you can match your existing décor, or make a stylish contrast.
  • Maximum versatility – Bespoke sizing capabilities to suit your living space
  • Smooth, easy-glide operation – A built-in four-roller aluminium track allows smooth and effortless opening
  • Ultimate energy efficiency – High-tech triple weather seals keep you free from draughts, bringing you peace, quiet and warmth.


Bi-fold doors Doors Gallery