Unique Features

Our XP Infinite is the ideal solution for projects with demanding requirements, meeting the trend of “transparent” architecture through extensive glass surfaces, with high thermal insulation, safety and modern design.

Its minimal design and its various innovative characteristics include the option of a moving corner post and a unique quadruple outer frame and bottom track that allow the doors to create a 75% clear opening. The XP Infinite is the ideal product for projects requiring wide spans for enhanced daylight, outstanding performance and maximum ease of use.


The system enables you to lock the door in any position when open. As the door lifts onto the ball bearings the quality of the system minimises the weight, meaning a glazed unit weighing in excess of 300kg can easily be slid to one side. The system is severe weather rated and boasts superb thermal performance. A slender 47mm sightline section is available on twin track systems, making it the ideal product for large spans, and ease of use whilst maintaining slender sightlines.

Moving corner post available


Lockable in any position

Unique, Quadruple 4 panel track available

Almost effortless to slide the door


  • Thermally insulated with polyamide thermal breaks, energy bar & insulation foam.
  • Innovative 24mm low threshold option with built-in drainage for non-exposed locations.
  • Twin, triple & unique quadruple outer frame and bottom tracks available.
  • Easy to operate with a lift and slide mechanism, which can be locked in any open position.
  • Reinforced slim-line 47mm interlock boasts unique indented profile internally that can be used as a handle to slide the door.



A twin track system offers two and four panel sliding doors with a 50% clear opening.

  • The quality and strength of our XP Infinite means we can manufacture and install a door well in excess of 5500mm x 2400mm split into just two panels. The door can be manufactured more than three metres in height, and twin track systems are available with a sightline of just 47mm.


Our triple & quadruple systems offer a typical sightline of 106mm and various, flexible configurations.

  • Three panels can create a two-thirds opening, or a middle sliding panel with two fixed.
  • For a wall of glass, six panels with three stacking either side offers both symmetry and a huge opening, the same principles apply to eight panels, which would create a hugely impressive sliding door that will create a huge feature within any property.


Our unique quadruple track allows for four panels and a 75% clear opening, with all four panels stacking to one side, the perfect for solution for large spans in excess of eight metres.

This solution allows you to create a stunning wall of glass across the full elevation of a property. The fourth panel not only enables you to create a larger clear opening but it also reduces the fixed element within the sliding door so rather than losing 33% of the doors opening to a fixed pane of glass, this is reduced to 25%, allowing for unobstructed access out to the garden. The quadruple outer frame is very deep so does require specific build work in preparation for this product so contact our sales team or request more information on how to integrate this impressive product into your project.


  • Exceptional sound insulation
  • Water tightness class 9A
  • Air permeability class 4
  • Wind load resistance class C4/B4
  • Burglar resistance RC2 & PAS 24
  • Overall U values as low as 1.1 W/m2k
  • Minimal sightline of just 47mm available on twin track doors.
  • Typical sightline of just 106mm on three, four and six panel sliding doors.
  • Lift & slide mechanism makes the door easy to operate and lockable in any open position.
  • Twin, triple & quadruple bottom tracks available.
  • Moving corner post available.


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colour choices for the front door


Whether you’re thinking a modern grey will complement your stonework nicely, or you want to make a statement with a bold colour, you’re in the right place. With three ranges offering popular colour choices and the option of over 200 RAL colours as well, you know you can pick the exact colour you want with Express. You can even choose textured or metallic finishes.

There’s no need to worry about durability either. Your bi-folding door is powder-coated, so the lasting finish won’t peel off or lose its colours. The colour is guaranteed for 10 years.




Standard range

Want a fast turnaround and a premium look? We keep large stocks of our three most RAL popular colours.

9016 Traffic White

9005 Jet Black

7016 Anthracite Grey

Essence range

Developed by our design experts, our unique range of seven metallic colours has proved to be our most popular special finishes. They’re so exclusive they’re not even available within our standard RAL range.

Thunder Grey

Magma Grey

Stove Black

Smoke Grey




Elite range

Our final selection of special colours offers enhanced durability and a premium textured metallic finish for added sophistication.

Emerald green

Agate green

Stone Grey

Trojan Bronze

Space Grey

Ivory Cream

Umber Brown

Pearl White

Midnight Blue

Vintage Cream









If you’re looking for something secure and reliable as well as stylish, then our XP Infinite glass sliding doors are the perfect choice. The panels are injected with a liquid component, which sets rock-hard, making each panel light but solid as concrete.

Designed with security in mind, our aluminium sliding doors boast features such as:

  • Multiple lock points on the master door
  • Interlocking profiles on sliding panels
  • Anti-lift blocks in the head of all panels
  • The system is glazed from the inside


Our sliding doors are designed to be as safe as possible, so you and your family can use your doors with peace of mind. All of our doors are bespoke, so we can make sure that we install your bottom track as flush as possible. That way, there’s no unsightly upstand and no trip hazards.

Lift and slide patio doors are ideal for family homes as the doors can be locked in an open position so you don’t need to worry about those little fingers, whilst children plan in and around the huge, glass doors.


Security Lock Barrel Cylinders as Standard

Our commitment to industry leading quality means that we only offer high security sliding doors. With 3-star diamond rated BSI cylinders, you can rest easy knowing that your glass sliding doors are keeping your property safe.

These premium lock barrels exceed the standard for Secured by Design accreditation, featuring anti-snap, anti-drill anti-pick and anti-bump technology. We even supply these cylinders internally, which means that if an intruder were to get in to your property, they will not be able to break out through your sliding doors.

Unlike other Secured by Design standard lock barrels, the keys can be cut at any locksmith, without the need for a specific lock card, making it simple and easy to get spares or emergency keys cut. Supplied by one of the world’s leading manufacturers of lock cylinders, these lock barrels are the perfect complement to our industry leading range of products.

key graphic

Certass CQ Assured Scheme

As members of the Certass Certified Quality Assured scheme, you can trust that we are a reputable and trustworthy company for your renovation, maintenance or improvement project.

The Certass CQ scheme isn’t a building regulations document but offers peace of mind for the customer that their works have been installed correctly and to the relevant industry standards. As part of the scheme our installations are independently audited by Certass every month and a certificate of conformity is sent to our customers upon the completion of our works. Included in the CQ scheme is a 10-year insurance backed guarantee and a 120 day deposit protection policy.

If you would like your installation to be included in the CQ scheme and receive a personalised certificate of workmanship quality please ask your sales rep.


Our replacement installations in England a Wales are backed by the Certass Competent Person Scheme and after the completion of our woks our customers receive a personalised Certass branded building regulations certificate reaffirming that the works have been completed to the relevant industry standards. Also included is a 10-year insurance backed guarantee to sit alongside our own comprehensive guarantee:

• The certification includes works where the removal and reinstallation of windows and doors are completed and installed by Express.

• The scheme covers replacement installations but does not include extensions and newbuild projects.

• The scheme covers our replacement works across England and Wales.


Find out more about our extensive range of sliding doors

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