East Coast Main Line Window Noise
LNER Azuma services hit 125 mph through the DN postcodes — the low-frequency rumble punches straight through single-glazed sashes and, more often than homeowners realise, straight through 1990s-era double glazing too.
The frequency signature of a fast train
Passenger services centre their acoustic energy at 40–125 Hz — well below the coincidence dip of a typical 4/16/4 double-glazed unit. This is the exact band that a mismatched-pane secondary system is designed to absorb.
The specification we install near the ECML
6.8 mm laminated on the secondary pane, 100 mm cavity, compression seals full perimeter. Rw improvement of 12–15 dB over the primary window alone — the rumble drops from a felt vibration to a distant hum.
Common ECML-side streets we cover
Bessacarr (DN4), Bennetthorpe (DN2), Rossington (DN11), Bawtry (DN10) and Hexthorpe (DN4) — standard survey coverage from our Sheffield base within 24 hours.
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South Yorkshire's specialists in secondary glazing — survey, measure, manufacture and install.