Noise Reduction Secondary Glazing | Road, Rail & Airport

Noise Reduction Secondary Glazing Specialists

Noise pollution affects quality of life for millions of people in the UK. Secondary glazing is the most effective window-based solution for reducing external noise — outperforming double and triple glazing through the use of acoustic laminate glass and large air cavities.

FENSA Approved

20+ Years Experience

UK-Wide

Why Secondary Glazing Beats Double Glazing for Noise

Standard double glazing has an air gap of 12-24mm. Secondary glazing reveal-fixed creates 150-200mm — up to 15x larger. This, combined with acoustic laminate glass, achieves 54dB noise reduction vs 30-35dB for standard double glazing. Perceived noise reduction of 80% vs 40% for double glazing.

Types of Noise Addressed

Road traffic: 6.8mm acoustic laminate + 150mm cavity. Airport/aircraft: 8.8mm or 10.8mm + 200mm cavity. Railway/tram: 8.8mm + maximum cavity. Urban noise: standard acoustic specification. Industrial: site-specific assessment recommended.

Recommended Specification

Reveal-fixed installation, 150mm minimum cavity (200mm preferred), 6.8mm acoustic laminate minimum (8.8mm+ for high-noise). Woolpile and Q-Lon perimeter seals. This achieves 54dB — a busy main road reduced to background level inside.

Frequently Asked Questions

How much noise reduction?

Up to 80% perceived reduction (54dB Rw) with acoustic specification. A busy road becomes barely noticeable inside.

Better than double glazing for noise?

Yes. The large air cavity (150-200mm) far outperforms the 12-24mm gap in double glazing.

Will it help with low-frequency noise?

Yes. The large cavity is particularly effective at absorbing low-frequency sounds — traffic rumble, aircraft engines, bass.

Near a motorway — will it help?

Yes. 8.8mm acoustic laminate with 200mm cavity provides excellent performance for motorway-adjacent properties.

Noise Reduction Secondary Glazing Specialists

Free Quote — Noise Reduction