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.
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.
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.
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.