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    Secondary Glazing Noise Reduction London specialist logo

    Secondary Glazing Products London

    Every window we treat in London uses one of three opening styles. The style you choose decides how the window is used day to day, how the panel seals and the acoustic ceiling the installation can reach. Our specialist systems can reduce external noise by up to 54dB in suitable configurations; actual performance depends on the existing window, glass specification, air-gap depth, installation quality, room construction and noise frequency.

    Sliding Secondary Glazing

    The most-specified opening style in London — full window access without removing a panel.

    • 51dB Peak noise reduction
    • 100mm+ Recommended cavity
    • £480 From, per window

    Delivered by Secondary glazing installers London — Survey, manufacture and fitting of vertical and horizontal sliding units.

    Read the sliding secondary glazing guide

    Hinged Secondary Glazing

    Full swing-clear access — the specification for deep reveals, shutters and awkward openings.

    • 53dB Peak noise reduction
    • 180° Opening arc
    • £520 From, per window

    Delivered by Residential secondary glazing — Hinged casement units fitted throughout London homes and flats.

    Read the hinged secondary glazing guide

    Lift Out Secondary Glazing

    The quietest and most affordable option for windows you rarely need to open.

    • 54dB Peak noise reduction
    • £390 From, per window
    • 0 Moving parts

    Delivered by Heritage and listed building glazing — Fully reversible lift-out panels for consent-sensitive windows.

    Read the lift out secondary glazing guide

    Choosing by property or noise type

    If you already know the problem rather than the product, start from the solutions hub instead — it groups pages by property type, noise source and room.

    Prices, surveys and next steps

    All products carry a 10-year standard warranty, extended to 25 years on Premium and Heritage specifications.

    Request a quote0207 060 1572

    Choosing the right secondary glazing product

    Match the unit to the window and the noise

    The right product depends on how your existing window opens, how much reveal depth is available and what noise you are trying to reduce. Horizontal sliding units suit most sash windows, hinged panels work well on casements, and fixed or lift-out panels are the most discreet option for windows that are rarely opened.

    Glass choice matters as much as frame style. Acoustic laminated glass is our usual recommendation for traffic and bus rumble, while standard laminated glass suits quieter streets where draught-proofing and thermal comfort are the priority.

    • Horizontal sliders for sash windows and wide bays.
    • Hinged and lift-out panels for casements and fixed lights.
    • Acoustic laminated glass for low-frequency traffic noise.
    • Slim frames finished to blend with period interiors.

    What every product has in common

    Every unit is made to measure, fitted inside the existing window and sealed around the perimeter. Noise reduction of up to 54dB is achievable in suitable configurations; actual results depend on the existing window, the surrounding wall and the quality of installation.