Cricklewood Glass - Quality Products & Services Since 1986

Now At Larger Premises: Unit 6d, Atlas Business Centre, Oxgate Lane, London, NW2 7HJ

Glass - Glazing - Secondary Glazing - Soundproof Windows - Splashbacks & Worktops -  Double Glazing & Units - Mirrors - Table Tops - In fact, Everything Glass!

Sound Proof Double Glazing, Noise Reduction Windows & Soundproof Windows London



Heliport House The London Heliport Battersea SW11 Soundproof Windows Case Study Secondary Glazing London

Case Study - Sound Proofing Windows

The London Heliport Front Airside View Noise Reduction Windows Case Study Secondary Glazing London
The London Heliport Rear Roadside View Soundproofing Windows Case Study Secondary Glazing London
The London Heliport Aerial View Sound Proof Windows Case Study Secondary Glazing London

Heliport House is the five-storey building on what was originally Battersea’s Westland Heliport - after ownership changes, the facility is now officially known as NetJets London Heliport.

The Heliport is London’s only licensed heliport and has been operating since 1959, for both business and leisure customers, and now also provides services to Police Air Support units, the Air Ambulance and to both UK and foreign Military Services.

Heliport House is probably the noisiest location in London when the helicopters are landing and taking off, between the hours of 7.00 am and 11.00 pm daily - at 100 feet from the average helicopter - you are experiencing 100 dB of noise!

The Problem and Requirement for Sound Proof Windows

Heliport House Noise was a Major Problem before Installation of Soundproof Double Glazing Secondary Glazing London

The property comprises Arrivals, Departures and storage facilities on the ground floor, a residential Penthouse Suite and Offices plus Conference facilities on the intervening three floors.

Noise had been an ongoing problem for the occupants of Heliport House for many years - despite the sealed unit double glazing fitted throughout the building.

In common with most buildings, most of the noise enters through the windows, hence the need for noise reduction windows, preferably soundproof windows!

The Solution and Secondary Glazing for Soundproof Double Glazing

Police Air Support and the Air Ambulance use the Heliport Sound Proofing Windows Secondary Glazing London

In July of 2004 we were approached by the new Managing Agents, for whom we had previously provided sound proof windows and noise reduction windows in various London properties and locations.

Because of the noise, the Agents were experiencing problems letting out the space and there had been a history of a high turnover of residents - despite the prime London location on the south bank of the Thames and only a 15 minutes’ walk from both over ground and underground stations.

A specialist Acoustic Engineer was called in to take accurate measurements of the sound levels, frequencies and vibration. This was especially important, because most of the noise comes from a helicopter's main rotor.

Helicopter Rotor Blades 100 dB of Noise at 100 Feet Soundproof Windows London Secondary Glazing London

As the rotor turns, the air pressure drops above each blade and rises below it (lifting the helicopter up). To even out the pressure differences, air then flows around the rotor blades, creating a concentrated vortex of sound vibration, spinning away from the helicopter.

In consultation with the Acoustic Engineer, we then recommended secondary windows glazed with 6.4mm Stadip ® Silence laminated glass - imported from the St-Gobain Glass Company in France.

Stadip ® Silence glass has a clear PVB interlayer - specially formulated and patented to cut down noise transmission including vibration.

We were confident that this would further reduce the noise still coming through the existing double glazing, to finally create truly soundproof windows.

The Successful Installation of the Soundproofing Windows

Commercial Helicopter taking off from the Heliport Case Study Sound Proof Double Glazing Secondary Glazing London


Our recommendations were accepted by the client for an initial test phase and we installed the secondary sound proofing windows to part of the building during September 2004.

The client was both delighted and amazed by the noise reduction.

Following the success of this initial project, we were quickly contracted to carry out two further phases, during November and December of the same year.

The result, we believe, is the best soundproof windows in London - despite the property being in the noisiest location!

Further information:

pdf Download our Secondary Glazing Brochure

Thank you for visiting - please Contact Us if we can be of any further help.