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Living under a Heathrow flight path? Discover how specialist acoustic glazing can reduce aircraft noise by up to 54dB and restore peace to your home.
Every 90 seconds during peak hours, another aircraft passes over West London on its approach to Heathrow. For the estimated 725,000 people living under the flight paths, this constant overhead traffic creates a noise challenge that standard windows simply cannot address.
If you live in Hounslow, Richmond, Kew, Chiswick, Hammersmith, or any of the areas beneath Heathrow's approach and departure routes, you'll know exactly what we mean. The good news? Specialist acoustic glazing can transform your home from a noise hotspot into a peaceful retreat.
Aircraft noise is particularly challenging to block because of its characteristics:
Standard double glazing, designed primarily for thermal insulation, typically reduces noise by 25-32dB. Against aircraft noise peaks of 80dB+, this still leaves internal levels of 50dB or more—equivalent to a loud conversation and far above WHO recommendations for healthy living.
The physics is straightforward: sound reduction improves with the size of the air gap between glass layers. Double glazing's 16-20mm gap is simply too small to significantly attenuate low-frequency aircraft noise.
Secondary glazing creates a gap of 100mm or more between your existing window and the new inner unit. This larger cavity is dramatically more effective:
| Glazing Type | Air Gap | Aircraft Noise Reduction |
|---|---|---|
| Single glazing | N/A | 20-24dB |
| Standard double glazing | 16-20mm | 25-32dB |
| Acoustic double glazing | 16-20mm | 32-38dB |
| Secondary glazing (6mm) | 100mm+ | 38-42dB |
| Secondary glazing (10.8mm acoustic) | 100mm+ | 48-54dB |
The difference between 32dB and 54dB reduction is enormous. Every 10dB represents a perceived halving of volume. With premium acoustic secondary glazing, an 80dB aircraft overflight becomes a barely-noticeable 26dB whisper indoors.
Heathrow Airport operates a noise insulation scheme for the most affected properties. If you live within the scheme's boundary, you may be eligible for:
However, the scheme has limitations:
For expert secondary glazing advice and free consultations for listed buildings in London, contact Secondary Glazing Specialist on 020 7060 1572.
Dr Sarah Chen
Building Physics Consultant
Every 90 seconds during peak hours, another aircraft passes over West London on its approach to Heathrow. For the estimated 725,000 people living under the flight paths, this constant overhead traffic creates a noise challenge that standard windows simply cannot address.
If you live in Hounslow, Richmond, Kew, Chiswick, Hammersmith, or any of the areas beneath Heathrow's approach and departure routes, you'll know exactly what we mean. The good news? Specialist acoustic glazing can transform your home from a noise hotspot into a peaceful retreat.
Aircraft noise is particularly challenging to block because of its characteristics:
Standard double glazing, designed primarily for thermal insulation, typically reduces noise by 25-32dB. Against aircraft noise peaks of 80dB+, this still leaves internal levels of 50dB or more—equivalent to a loud conversation and far above WHO recommendations for healthy living.
The physics is straightforward: sound reduction improves with the size of the air gap between glass layers. Double glazing's 16-20mm gap is simply too small to significantly attenuate low-frequency aircraft noise.
Secondary glazing creates a gap of 100mm or more between your existing window and the new inner unit. This larger cavity is dramatically more effective:
| Glazing Type | Air Gap | Aircraft Noise Reduction |
|---|---|---|
| Single glazing | N/A | 20-24dB |
| Standard double glazing | 16-20mm | 25-32dB |
| Acoustic double glazing | 16-20mm | 32-38dB |
| Secondary glazing (6mm) | 100mm+ | 38-42dB |
| Secondary glazing (10.8mm acoustic) | 100mm+ | 48-54dB |
The difference between 32dB and 54dB reduction is enormous. Every 10dB represents a perceived halving of volume. With premium acoustic secondary glazing, an 80dB aircraft overflight becomes a barely-noticeable 26dB whisper indoors.
Heathrow Airport operates a noise insulation scheme for the most affected properties. If you live within the scheme's boundary, you may be eligible for:
However, the scheme has limitations:
Many homeowners choose to install their own higher-specification secondary glazing rather than wait for scheme assistance or accept standard-grade products.
We have extensive experience installing acoustic secondary glazing in properties beneath Heathrow's flight paths, including:
For homes directly under flight paths, we recommend:
10.8mm acoustic laminate (6mm glass + 0.76mm acoustic PVB + 4mm glass)
The laminated construction with acoustic interlayer specifically targets the low frequencies that characterise aircraft noise. Standard float glass, even at greater thickness, cannot match its performance.
Minimum 150mm where reveal depth permits. Larger gaps provide better low-frequency attenuation. For shallow reveals, we can sometimes achieve effective gaps using angled installations.
Acoustic performance depends entirely on creating an airtight seal. Even small gaps can significantly reduce effectiveness. We use compression seals, brush seals, and acoustic-grade sealants throughout.
Heavy-duty aluminium frames with thermal breaks. The frame must support the weight of acoustic glass (10.8mm laminate weighs approximately 27kg/m²) without flexing or compromising seals.
Recent installation in Richmond (directly under eastern approach):
The homeowner reported: "For the first time in fifteen years, we can't hear the planes from inside the house. We can finally sleep with the windows effectively 'closed' to noise while still being able to open the secondary glazing for ventilation when we want fresh air."
Effective acoustic glazing creates an airtight seal—which raises ventilation questions. Options include:
We'll assess your specific situation and recommend the appropriate ventilation strategy.
Many properties under flight paths—particularly in Richmond, Kew, and Chiswick—are listed or in conservation areas. Secondary glazing is ideal for these situations:
For a typical 4-bedroom house under a flight path:
If aircraft noise is affecting your home, request a free acoustic survey. We'll measure your current noise exposure, assess your windows, and provide a detailed specification and quotation.
Call 020 7060 1572 to speak with an acoustic glazing specialist who understands the specific challenges of Heathrow flight path noise.
London's leading secondary glazing specialists for Grade I, Grade II, and Conservation Area properties. Every project begins with a complimentary heritage survey.
