Mechanical Plant – BS4142

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New mechanical industrial and commercial noise sources vary from small air conditioning units attached to a office, shop or even a residential property, upto large-scale noise-generating commercial developments, such as petrol stations, warehouses, office blocks, restaurants and industrial developments.

Our acoustic consultants undertake BS4142 acoustic surveys. This involves liaison with the local authority (council), involves noise monitoring, often for periods in excess of 24-hours, so as to capture background sound levels. Our detailed reports, detail mechanical plant maximum noise levels, calculate sound level transmission from source to nearby noise sensitive receptors and where appropriate provide noise mitigation measures. Where solutions are required in order to demonstrate compliance, HA Acoustics always consider a range of both sound attenuation options and cost impact to our clients.

For more information on our noise impact assessment, BS4142 reports for mechanical, industrial and commercial noise emitting sites, please contact us on 01245 206 250 (Chelmsford) or 0203 371 9801 (London) or 01752 426 118 (Plymouth). Alternatively, email:

We’d be glad to give you our professional advice, on discuss your project in-depth and provide you with a no-obligation quotation.

BS 4142:2014 is a British Standard used by Local Authorities (Councils) as an indicator to find out if the proposed development will impact upon nearby noise sensitive receptors.

HA Acoustics is able to undertake noise monitoring at your site, and provide a comprehensive acoustic report, undertaken in accordance with BS 4142:2014 standards.

HA Acoustics predominantly serves East Anglia, London and the South-East, but does operate throughout the whole of the UK, having undertaken acoustic surveys from Norfolk to Cornwall.