Acoustic Design Advice for my Sound Insulation Test

Acoustic Design Advice for my Sound Insulation Test

We at APT Sound Testing pride ourselves on offering a comprehensive acoustic design service for party walls and floors to help you development attain compliance with Building Regulations Part E at the first attempt. If you send through the relevant drawings such as sections and floor plans during the design stages of the project, we can check the design is adequate and if there appears to be any junctions or details where ‘noise flanking’ may occur, we can then advise if any changes are required to lower the chance of sound test failures.

APT Sound Test Engineer undertaking sound insulation testing in London


There are many factors to consider when considering good acoustic design, and they are usually split up into five key factors. If used together or in various combinations they will improve sound insulation properties over a wide range of frequencies. The main factors are:

                    1. Mass
                    2. Isolation
                    3. Absorption
                    4. Resilience
                    5. Stiffness

Also, noise flanking transmission may in some cases be the dominant pathway between adjoining dwellings, especially in existing buildings where you are planning to convert offices/large houses into flats. Here are just a few of the potential noise flanking areas:

                    1. Structural Steels
                    2. Windows built very close to Internal partitions
                    3. Inner leaf of the external wall
                    4. External wall cavities
                    5. External façade or outer leaf
                    6. Roof structure


APT Sound Testing can advise on all types of acoustic design, whether it’s during the initial design of a new build project and/or undertaking sample sound testing and design during a refurbishment/renovation project. We also undertake UKAS accredited sound insulation testing providing a ‘one stop’ solution for all your acoustic requirements.

As we are a multi UKAS accredited testing laboratory, you can be sure our reportage is of the highest standard and will be accepted by the tasked London Building Control body. As all our testing is carried out in house (we do not subcontract work) which allows us to provide highly competitive pricing whilst maintaining the highest testing standards. It is our ongoing aim to provide a friendly and proactive service from design stage to handover.

We offer cost effective ‘one stop solution’ for all your sound testing requirements. We also offer large cost savings for developers requiring multiple services such as Air Tightness, Sound Insulation and Ventilation Testing throughout London and the South East.

We undertake our sound testing services throughout London and the South East, If you would like more information in regards to sound testing service and/or acoustic design services, please contact us on 01525 303905 or or call Darren direct on 07775 623464.