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Projects & Case Studies

Real Projects, Completed Across the UK

From heritage cottages in Derbyshire to schools and commercial buildings, every project below is our own work surveyed, manufactured and installed by Invision.

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The Difference

Before & After

Secondary glazing changes how a room feels far more than how it looks. These comparisons show typical installations before and after our teams have been on site.

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Before

Original single glazed windows: drafty, cold to the touch, and offering little protection from street noise.

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After

Slim secondary glazing fitted internally: warmer, quieter and more secure, with the original window fully retained.

Case Studies

Featured Projects

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Ashbourne Cottage

Derbyshire

Challenge

A heritage cottage losing significant heat through original single glazed windows, with persistent drafts making rooms uncomfortable through winter.

Solution

Discreet secondary glazing fitted internally to every affected opening, leaving the original cottage windows completely untouched.

Result

Heat loss and drafts resolved, with added security and a noticeable reduction in outside noise.

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West Riding House

School Project

Challenge

A school needing significantly improved window security without losing a single hour of teaching time.

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Solution

Security focused secondary glazing units installed overnight by our own teams to avoid disrupting classes.

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Result

A safer and quieter learning environment, delivered with zero impact on the timetable.

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East West Building

Commercial Building

Challenge

A commercial building needing better thermal performance while maintaining clean, uninterrupted window sightlines.

Solution

Thermal 6.4 Low E glass units manufactured and fitted with precise tolerances to the existing openings.

Result

Improved sightlines and markedly better thermal comfort across the occupied floors.

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Ashbourne Draycott in Clay

Staffordshire

Challenge

A heritage property with high ceilings and unusually tall windows, allowing considerable heat to escape.

Solution

Bespoke tall units engineered specifically for the high ceilings and fitted to the original reveals.

Result

Substantially improved insulation with the historic character of the property preserved.

See More

Want to See the Full Picture?

Browse more completed installations, or tell us about your property and we'll come back with a tailored quotation.

The Basics

What Is Secondary Glazing

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Ashbourne Cottage

Heritage property secondary glazing installation, sympathetic to the character of the historic property while adding thermal and acoustic performance.

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West Riding House

Commercial secondary glazing installation for improved noise reduction and comfort in the workplace.

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East West Building

Large scale commercial project focused on insulation and reduced energy costs.

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Ashbourne, Draycott in the Clay

Another heritage residential project preserving external character while improving performance.

Could Your Property Be Next?
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