Glass box extensions

Glass rooms

Structural glass

Frameless sliding doors

Frameless roof lights

Glass floors 

Glass staircases


London: 0207 118 0448

Bristol: 0117 259 1122

Glass Box Extensions

Bespoke Glass Box Extensions and Rooms come in all shapes and infinite range of sizes.

At Glasspace we believe that when detailing and specifying a Glass Box Extension comfort is key.

We offer  bespoke products that sets us apart from our competition in terms of function, durability and  range of options.

Glasspace has invested in the design/manufacture and installation of your Glass Box Extension.

 We can offer the best service from concept to completion.

Work with you as well as Architects designers and Engineers making sure the processes gives the peace of mind you need.

Our product ranges includes/Contemporary Glass Structures/Glass Rooms/Glass Extensions/Frameless Glass Sliding Doors/Glass Frameless Roof Lights/Glass Floors/Glass Staircases.

All the images on this website have been designed and built by Glasspace.

Contemporary Living Space

Enjoying your Glass Space once it is built is down to the glass and its reflective properties.

When detailing and specifying the Glass which forms the roof and walls to your Clear Glass Structure solar protection is key.

Glasspace use the very best 

Infiniti Fineline doors

Your contemporary Glass Box Extension can have different door solutions.

Glasspace have developed the Infiniti fineline sliding door system that sits within your contemporary structure with minimal sight lines.

St James Square

St James square was featured in grand designs magazine.

GlasSpace works  in conjunction with award winning  structural engineers Malishev Engineers Ltd<>, who are at the forefront of structural glazing technology. 

Infiniti Fineline Doors by Glasspace

Glasspace are one of the market leaders in frameless sliding doors with minimal sight lines 17mm.

We are the only company that supplies these frameless doors within a Glass Box Extension or Room.

Stand alone doors and screens come in the crittal style as well as the normal sliders.

The Glasspace system Infiniti Fineline door is the only door that functions in both direction while keeping it superb weather rating.