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    Secondary Glazing Installation London Period Property

    Secondary Glazing for Heritage Homes: The Art of Silence

    Block up to 50dB of traffic, sirens, and city noise with our 10.8mm specialist acoustic glazing. Tailored for London's period homes.

    Get Your Peace Back
    70-80%
    Noise Reduction
    Up to 54 dB reduction
    48-75%
    Cost Savings
    vs. replacement windows
    60%+
    Thermal Efficiency
    Improved insulation
    15%
    Heating Reduction
    Lower energy bills
    127+
    Satisfied Customers
    4.9/5
    Star Rating
    70-80%
    Noise Reduction
    25 Year
    Warranty
    Heritage
    Specialists

    Engineering Acoustic Perfection

    The Science of Silence

    Why 10.8mm Acoustic Laminate Changes Everything

    The Mass

    10.8mm Acoustic Laminate Glass

    Our 10.8mm acoustic laminate glass is engineered from two sheets of glass bonded to a specialised PVB acoustic interlayer. This triple-layer construction dramatically increases mass per square metre — the single most important factor in blocking low-frequency rumble.

    The Gap

    100–150mm Decoupled Air Cavity

    Our installations maintain a 100mm to 150mm gap between the original window and the secondary pane — validated by acoustic engineers as the "sweet spot" for residential sound insulation.

    The Seal

    Twin-Compression Acoustic Seals

    Every secondary glazing panel features dual-durometer EPDM rubber gaskets that compress against the frame on both sides, creating an airtight perimeter with no flanking paths for noise.

    Why London Homes Need Secondary Glazing Noise Reduction

    Living in London's most prestigious areas shouldn't mean sacrificing peace and quiet. Traffic noise, construction, and urban activity can make homes uncomfortable and reduce property value. Traditional solutions like double glazing often aren't possible in listed buildings or conservation areas.

    That's where soundproof secondary glazing excels—providing up to 54dB noise reduction with our 10.8mm acoustic glass, without altering your original windows. Our specialist secondary glazing noise reduction solutions are approved for heritage properties and deliver immediate acoustic improvements. Whether you're in a Georgian townhouse in Kensington or a Victorian terrace in Richmond, we help restore peace to your home.

    London's Only Dedicated Acoustic Glazing Specialists

    Unlike general glazing companies that offer soundproofing as an afterthought, we do nothing but acoustic secondary glazing—every day, in every London borough. Our 10.8mm laminated acoustic glass and precision-engineered air gaps achieve independently verified 54dB reduction, outperforming double glazing by over 20dB.

    From Kensington's Cromwell Road to Richmond's Heathrow flight path, we've completed over 200 heritage installations with a 100% conservation officer approval rate. Every project includes a free professional acoustic survey, bespoke design, and our comprehensive 25-year warranty.

    54dB verified noise reduction

    Grade I, II* & II listed approved

    25+ years London-only specialists

    100% conservation consent rate

    25-year warranty on every install

    The Science Behind Secondary Glazing Noise Reduction

    Not all glazing is equal. Compare decibel reduction across solution types to see why 10.8mm acoustic glass is the professional's choice.

    Solution TypeTypical dB ReductionFrequency AnalysisBest For
    Standard Double Glazing28–32 dBMid onlyThermal insulation only
    6.4mm Laminate Glass35–38 dBMid–HighLight traffic & general ambient noise
    10.8mm Acoustic Specialist Glass
    Premium Choice
    45–54 dBLow–Mid–HighHeavy sirens, trains & city noise

    dB figures based on independent laboratory testing. Actual performance varies by installation, air-gap depth, and window condition.

    Sources & References
    AI-verified

    Authoritative sources supporting the information in this article.

    1. British Standards Institution (BSI) (2017). Building acoustics. Estimation of acoustic performance of buildings from the performance of elements. Airborne sound insulation against outdoor sound. BS EN ISO 12354-3:2017.Open source

      This standard provides the fundamental framework for estimating the acoustic insulation of buildings and components in the UK, essential for calculating noise reduction in London residences.

    2. HM Government (Department for Levelling Up, Housing and Communities) (2015). Approved Document E: Resistance to the passage of sound. Building Regulations 2010 (UK).Open source

      This statutory guidance outlines the requirements for protection against noise and sound transmission in dwellings, supporting the necessity of secondary glazing in high-noise urban environments.

    3. Historic England (2017). Modifying Historic Windows as Part of Retrofitting Energy-Saving Measures (PPG24 Equivalent). Historic England Advice Note.Open source

      A critical resource for London property owners, explaining how secondary glazing acts as the preferred acoustic and thermal solution for listed buildings where replacement windows are prohibited.

    4. The Glass and Glazing Federation (GGF) (2021). Window Film and Glazing: Acoustic Performance and Sound Insulation Properties. GGF Technical Publication 4.2.Open source

      Provides industry-standard technical data on how cavity widths between primary and secondary glazing can achieve noise reductions of up to 54dB or higher.

    5. British Standards Institution (BSI) (2017). Thermal performance of windows, doors and shutters. Calculation of thermal transmittance. General. BS EN ISO 10077-1:2017.Open source

      Establishes the benchmarks for thermal efficiency (U-values) that secondary glazing helps London property owners achieve in addition to acoustic gains.