What is Secondary Glazing?
Everything you need to know about secondary glazing systems, how they work, and why they're the smart choice for noise reduction, thermal efficiency, and heritage property improvement.
What is secondary glazing?
Secondary glazing is a separate window system installed on the interior side of your existing windows. It creates an insulating air gap between the original window and the new secondary window, significantly improving thermal performance (up to 60% heat loss reduction), acoustic insulation (up to 80% noise reduction), and security. Unlike double glazing replacement, secondary glazing preserves your original windows while adding modern performance benefits - making it ideal for listed buildings and conservation areas.
Secondary Glazing Explained
Secondary glazing is a separate window system installed on the interior side of your existing windows. It creates an insulating air gap between the original window and the new secondary window, significantly improving thermal performance, acoustic insulation, and security. Unlike double glazing replacement, secondary glazing preserves your original windows while adding modern performance benefits.
How Secondary Glazing Works
Survey & Measurement
A professional surveyor assesses your windows, taking precise measurements and recommending the best system type and glass specification for your needs.
Custom Manufacturing
Secondary glazing units are manufactured to exact specifications, typically using slim aluminium or timber frames with your chosen glass type.
Professional Installation
Units are fitted to the room side of your existing windows, creating an air gap of 100-200mm that provides superior acoustic and thermal insulation.
Immediate Benefits
Experience instant noise reduction, improved warmth, and enhanced security from the moment installation is complete.
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People Also Ask
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