What’s the right secondary glazing for your window?


Find the Perfect Secondary Glazing for Your Windows

How to select the right secondary glazing

Your primary window’s shape and size determines the most suitable secondary glazing system to give the most unobtrusive appearance and provide the benefit you require.

The 4 core Clearview secondary glazing systems; Horizontal Sliders, Vertical Sliders, Lift Out units and Hinge units can be used as a single entity, or combined on more complex primary window styles, to provide the optimum benefits in terms of appearance, insulation and ease of access.

Single casement windows

Where the primary window is a single casement (one piece of glass) a Hinge unit or a Lift Out panel may be the most suitable type of secondary glazing to fit.

Side by side sections?

For primary windows with side-by-side sections of 2, 3, 4 or more panels with opening casements our Horizontal Sliding system is recommended.

Sash windows

Sash windows, where the opening part of the window slides up and down, suit our Vertical sliding systems or Hinge units. In certain circumstances, where limited access is required and size is not an issue, Lift Outs could also be considered.

Not much window frame to attach to?

In cases where the primary window offers very little frame or surface area to attach any of the 4 Clearview systems outlined above, our Insert panels can be considered.

Larger and more complex window styles

For large window areas, or more complex window structures, it is possible to stack or couple units together to form an enlarged structure.

Arched windows, square bays, bulls eye windows…nearly every window style

Virtually every primary window size and shape can be catered for; arched and shaped windows, square bays, angled bays, curved bays, oval and circular windows and windows with curved in plan glass. Irrespective of the glazing in your primary window – stained glass, leaded lights, bull nose, etched glass, historic glass – all can be secondary glazed. In fact, we even supply secondary glazing for double glazed windows, to give optimum insulation performance.

Which is best for your window?

There are Clearview solutions for every project and budget. All Clearview secondary glazing is manufactured from high quality components; fully recyclable, from managed, sustainable sources, and all products are covered by our 10 year guarantee.

From a full design, supply and fitting service, to custom made DIY secondary glazing kits – get a FastQuote now – with an easy measuring guide and fitting instructions. Help protect our heritage and the environment, whilst lowering your thermostat and your carbon emissions.


Clearview secondary glazing - the solution to significantly improved acoustic and heat insulation to your property, making your home or offices more comfortable, secure, greener and cost efficient to run. Achieved without the disruption of replacement windows, and without damaging the character of your building.

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