Sound Insulation Testing

Building Acoustics Services

Sound Insulation Testing

We are experts in building acoustics. Particularly in sound insulation testing – also known to as sound testing, pre-completion testing or Approved Document E testing. This involves the testing of separating floors and walls.

We conduct this testing for newly built or converted properties for residential use. The results must meet specified sound insulation requirements as per Approved Document E.


How is the sound test done?

We conduct measurements of a noise source on either sound of a partition (the wall or floor in questions). We then apply corrections for echoes and background sound. In addition, where separating floors are present, we also conduct an impact test. All of our sound tests are SITMA accredited.


Sample Testing & Design Reviews.

Our acoustic design review services can help developers to understand the likelihood of passing the sound insulation test before construction begins. This helps to reduce expensive corrective works once the development is complete.

We also offer sound insulation sample testing. This defines the performance of party walls or floors on an individual basis before implementation of a design across a full development.

When a partition fails this assessment, we provide remedial advice. A re-test follows the partition modifications. In addition, NCSL review proposed constructions in order to highlight any concern areas before work commences.


When to Test?

Testing can start when: All walls and floors are complete. Internal and External doors fitted. Windows fitted. Sockets fitted and sealed. 240v power is present on site.


Competitive Prices

We offer sound insulation tests to our clients at extremely competitive prices. We also endeavour to match or beat any like-for-like quotation.

Contact NCSL for more information on sound insulation testing.

You can also have a look at the information provided by the GOV.UK website relating to acoustic testing. We also have a blog post on sound testing which you may find useful.


To book your sound insulation test, call us on 01942 580 340



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