London Specialists · 10.8mm Acoustic Laminate Glass
Acoustic Glazing in London
Specialist acoustic glazing for London period homes, flats above busy roads, and listed buildings — 10.8mm Stadip Silence laminate glass installed as a slim internal pane behind your existing window, with measured reductions of up to 54dB.
What are acoustic glazing?
Acoustic Glazing is the North-American term for what UK installers call acoustic secondary glazing — a slim secondary pane installed on the internal reveal of your existing window, 100–150mm behind the primary glass. The wide air cavity and the acoustic-laminate pane together break the sound transmission path that single-pane sash windows and even modern A-rated double glazing cannot.
We specify 10.8mm acoustic laminate glass with a Stadip Silence PVB interlayer, EPDM acoustic seals, and a 100–150mm cavity. Measured in our own London installations this combination delivers up to 54dB reduction — roughly an 80% perceived drop in road, rail, and aircraft noise.
Because the original window is untouched, the system is fully reversible and approved by conservation officers across Kensington, Chelsea, Westminster, and every other London borough we work in.
Measured performance vs. alternatives
16–20mm sealed cavity is too narrow to break low-frequency traffic noise.
10.8mm acoustic laminate + 100–150mm air gap + EPDM perimeter seals.
Costs 3–4× more, requires planning consent, and is rarely permitted on period or listed properties.
Independent dB measurements taken before and after install using a calibrated Class-1 sound-level meter. See our London case studies for room-by-room data.
When acoustic glazing are the right call
Period sash windows you cannot replace (listed or conservation area)
Flats above busy A-roads, night-bus routes, or Tube vent shafts
Heathrow / City Airport flight paths in Richmond, Barnes, Fulham, Putney
Overground / Crossrail line-side homes in Camden, Hackney, Ealing
Restaurant or pub neighbour noise in Soho, Shoreditch, Camden
Cold draughty windows where double glazing is out of budget
Acoustic Glazing: FAQs
What is acoustic glazing?
Acoustic glazing is a glass system engineered to block airborne sound. The active ingredient is a laminated pane — two sheets of glass bonded with a polyvinyl-butyral (PVB) interlayer that absorbs and damps sound waves. We use 10.8mm Stadip Silence, the highest-performing acoustic laminate widely available in the UK.
Is acoustic glazing the same as acoustic double glazing?
Acoustic double glazing places acoustic laminate in a sealed two-pane unit (16–20mm cavity); acoustic secondary glazing places it as a second pane 100–150mm behind the original window. The wide cavity makes secondary glazing significantly more effective on low-frequency traffic and aircraft noise — typically 54dB vs 32dB.
How effective is acoustic glazing on London traffic noise?
On a typical Kensington or Chelsea street running at 70–78dB outside, our 10.8mm acoustic secondary glazing brings internal noise down to 20–25dB — quieter than a library. We document before/after dB readings on every project.
Does acoustic glazing work on aircraft noise from Heathrow and City Airport?
Yes — and the wide air cavity is critical here because aircraft noise has strong low-frequency components. We have installed in Richmond, Barnes, Putney and East London flight-path postcodes, with measured reductions of 40–50dB on overhead approach.
Can I get acoustic glazing on a Grade II listed sash window?
Yes. Acoustic secondary glazing is the option Historic England and the Planning Portal explicitly recommend for noise upgrades to listed windows because it is internal, reversible and leaves the historic fabric untouched. We handle listed-building consent paperwork on every project.
How much does acoustic glazing cost per window in London?
Around £650 per standard sash with 10.8mm acoustic laminate, rising for bays, large casements and curved heads. A typical 4–6 window London flat falls between £3,500 and £8,500 fully installed.
Free survey across London
Book a 30-minute on-site noise survey. We measure the dB intrusion at your windows, model the predicted reduction with 10.8mm acoustic laminate, and quote within 48 hours.
Request your free London surveyKeep reading
Deepen your research with our specialist resources — each link goes to a single, focused article so you can compare specifications, benefits and pricing in detail.
- 10.8mm acoustic laminate glass: full London specification
The exact glass build, interlayer and cavity depth we install for 54dB performance.
- Residential secondary glazing for London period homes
Our flagship installation service for sash and casement windows across the capital.
- Heritage & Grade II listed building secondary glazing
100% conservation-officer approval record with reversible, internally fitted units.
- Secondary glazing vs. double glazing for noise reduction
Why a 100–150mm cavity beats a 16–20mm sealed unit on traffic and aircraft noise.
- Secondary glazing prices in London (transparent 2026 rates)
Per-window and whole-flat indicative costs by glass spec and frame type.
- Free London acoustic sound survey
On-site dB measurement and a predicted-reduction model before you commit.