Six important features of slimline sliding doors

Panoramic Sliding Doors, Slimline Sliding Doors, Minimalist Windows, Ultra-thin sliding doors, frameless sliding doors are just some of the expressions used for the latest generation of aluminium sliding patio doors with a minimal visible amount of aluminium and the maximum amount of glass. When compared to conventional patio doors, the features of slimline sliding doors stand out.

The key features of slimline sliding doors.

Slimline sliding doors still slide in the same way as the familiar aluminium patio door. The inline design enables the doors to move within a single, double or triple track. The number of tracks is usually determined by the number of sliding panels and the door configuration.

features of slimline sliding doors and why buy them
Slimline sliding doors differ substantially from conventional aluminium sliding patio doors.

There are six significant differences between a conventional aluminium sliding patio door and this new generation of slimline patio doors.

  • Cost
  • Aesthetics
  • Operation
  • Manufacturing
  • Transportation
  • Installation

How much do slimline sliding doors cost?

A standard sliding patio door from the main aluminium systems companies in the UK, fitted into a standard 3metre x 2500mm high can start from £3500. Slimline sliding doors at a similar size can start from £7500.00. As a result of the unexpectedly high cost, we receive many enquiries on this website asking for a more cost-effective solution that offers the same features and aesthetics. One solution is the SUNFLEX SVG30 with excellent sightlines of just 30mm at less cost.

If you are looking to fit one of the current generation slim sliding doors in your home, you should expect a high price although there are comparable products. Contact us for further information and advice.


The aesthetic advantage of slimline sliding doors is one of the main advantages. Every element of this kind of sliding door is thinner, less intrusive and maximising the glass area.

Slimline sliding doors are frequently seen in building openings that are taller and wider than a conventional door aperture. It is slimline doors that frequently have the aesthetics and sight lines to create a sliding glass wall. Some door products are possible at 5 metres high or more.

The interlock is the vertical mullion where the sliding panels meet. Many conventional sliding doors offer interlocks of between 35mm and 110mm. Slimline sliding doors are available with interlocks as narrow as 17mm. This significant reduction in one of the key structural and visual profiles of a sliding door is a big part of their appeal.


Slimline sliding doors utilise the very latest rollers, gearing, components, locking systems and even motors. Many homeowners putting large and heavy doors in their home also take up the option to automate them. You wil find most of the current slimline sliding doors on the market are available with an automatic opening and closing action.

Even when slimline sliding doors are manually operated, the gearing and rollers is so sophisticated they are effortless to open and close. Individual panels can weigh more than 400kg yet can be slid open with one hand.

Automatic operation is usually not available with conventional aluminium sliding doors.


Slimline sliding doors appeal because of their quality, high performance and top-end engineering. With the high cost of these doors, customers expect a flawless product. These doors must meet the exacting and demanding requirements of architects and discerning end-user clients and are manufactured to meet these demands.

Some products are manufactured around the glass; others are intended to be glazed once installed. Whichever method or product is used, the manufacturing methods in these types of doors differ from traditional sliding doors that are so simple to make some even come as cut to size kits.


Slimline sliding doors are frequently much bigger than regular patio doors. Even the best and longest-established window and door installers only have standard size vans and will not own the equipment needed to transport the doors and handle the glass.  Moving, glazing and installing slimline sliding doors often calls for specialist plant and machinery as well as trained installers. We would regard the installation of these doors as ‘high-end’ glazing.

The professional installers of slimline sliding doors should explain what is involved in delivering, fitting and glazing these doors. They are different to standard sliding doors.


Precision manufacturing and a flawless installation are paramount to ensure the reliability and long-term performance of slimline sliding doors.

Often the outer frame and track are hidden within the building structure to create the frameless and all glass appearance. With the frames concealed, what happens should a sliding door require maintenance or repair? The professional installers of these doors have to consider all the scenarios post installation and into the future.

Expect the installation of slimline sliding doors to be far more complicated and involved than with a conventional patio door. You can expect this to be reflected in the overall price as well.

Contact us if you would like further information about slimline sliding doors.

Published on July 14, 2017