December 4, 2023

What are the Best Sliding Glass Doors?

Written by Rebecca Clayton


What are the Differences between our sliding glass door systems?

At IQ Glass, we pride ourselves on offering the widest range of high specification ultra slim framed sliding glass door systems, precision engineered for an appealling aesthetic, and the ultimate in thermal performance. 

Modern slim framed sliding glass doors continue to be a popular option for architects and design-minded homeowners looking to create a seamless and minimal indoor-outdoor rear patio design.

Slim Framed Sliding Glass Doors from Minimal Windows

The slim framing associated to sliding patio doors, even when closed, means that the boundaries between inside and outside are blurred. If you opt for a sliding door system that offers a full floor to ceiling glass finish, like minimal windows, then that barrier is merged even further.

The 21mm aluminium frame and the flush tracks create impressive floor-to-ceiling glass facades of smooth sliding glass suitable for use on extensions, renovations and contemporary new builds with a modern, minimal design aesthetic.

Minimal windows are the perfect sliding door system for projects wanting to minimise the barrier between inside and with the new NextGeneration (NGS) sliding glass door system, even more frame is absorbed with industry-leading product innovations. 

The Keller NextGeneration sliding glass door system(NGS) 

The NextGeneration slider reinvents the sliding glass door system with the new base design absorbing 99.3% of visible frame offering a full floor to ceiling almost frameless solution.

New soft-open close system conceals the handles within the frame. 

The new gasket system improves weathertightness replacing the outdates brush seals which are not best suited to British weather. 

The NGS also offers a stepped glass option where the glass is stepped over the base frame for a floor to ceiling flush glass design.  

For oversized sliding glass doors, the NGS automated option offers a new 'Top Slider' solution where the motor can be accessed within the head frame for maintenance, as opposed to removing the building finishes to gain access. 

With telescopic sliding, the NextGeneration sliding glass doors now open and close simultaneously, offering a smoother sliding action that is quiet and seamless. 

Aluminium Sliding Glass Doors 

Aluminium framed sliding doors are at the forefront of contemporary architectural design. Our competitive aluminium framed range offers slim profiles as minmal as 30mm, offering a clean contemporary finish creating large elevations of aluminium framed sliding glass.

Multiple configurations are available all using modern and innovative fabrication techniques to achieve the best sliding doors.

Ultra-slim sliding glass doors are the perfect solution if slim sightlines are desired but the budget is limited. This system is more cost-effective than minimal windows, but maintains a modern finish and high performance.

Steel Framed Doors 

Modern kitchen refurb with frameless rooflights and steel patio doors

Slim steel framed doors

Elegant thermally broken steel doors from IQ are customiseable to suit all architectural design specifications.

IQ’s slim galvanised steel doors can be finished to any RAL colour, Stainless Steel and Architectural Bronze, all engineered for a unique and luxury sliding door installation.

With a structural thermal break, these steel sliding doors maintain high levels of thermal performance and can also be engineered with integrated or applied bespoke glazing bars to create an industrial heritage design to the steel framed sliding glass doors.

If your project design has strict requirements, such as a listed property, your windows and doors may need to be replicated with high modern day thermal performances. We have a wide range of solutions for bespoke high-end architectural design specification.

Timber framed sliding glass doors systems

New Avino high specification timber sliding doors  offer unparalleled beauty and performance.

The elegant range of timber sliders offers the slimmest sightlines with just 5cm of frame around the wooden sliding door leaf and flush threshold detail. 

Our vast array of distinctive sliding glass door designs with thermal break technology and slim profiles, ensures that whichever style you lean towards, is the best sliding glass door of choice with countless finishes to match your contemporary or classic design.

Depending on your budget, Minimal Windows slim sliding sliding glass doors provide the slimmest sightlines out of all the systems at 21mm and a flush threshold ,enabling the seamless transition between the internal and external living areas.


Are you looking to specify sliding glass doors on your next project? Contact our friendly team today!

01494 722 880