Sound Insulation Testing

Sound insulation testing is essential for determining how effectively noise is prevented from travelling through a building's structure. Whether you are developing new-build homes, converting existing properties, or constructing purpose-built flats, UK Building Compliance provides pre-completion acoustic testing to Part E of the Building Regulations — ensuring your properties deliver the quiet, comfortable living environments that occupants expect and the law requires.

What Is Sound Insulation Testing?

Sound insulation testing, also known as acoustic insulation testing, measures how well party walls and party floors prevent noise from passing between adjoining dwellings. The testing is carried out pre-completion and comprises two distinct test types: airborne sound insulation tests and impact sound transmission tests.

During an airborne sound insulation test, our technicians use a loudspeaker and amplifier to generate a range of frequencies in one room. Sound level meters record the decibel levels in both the source room and the adjoining room, measuring how much noise travels through the party wall or floor construction.

During an impact sound transmission test, a standardised tapping machine with five metal hammers strikes the party floor to simulate the sound of footsteps. Our technicians then measure how much noise is transmitted to the room below, determining the floor's effectiveness at reducing impact noise.

Together, these tests provide a comprehensive picture of the acoustic separation between dwellings and confirm whether your construction meets the minimum performance standards set out in Part E of the Building Regulations.

Why Do You Need Sound Insulation Testing?

Sound insulation testing is required under Approved Document E (Part E) of the Building Regulations for new-build dwellings that share party walls or party floors with adjoining properties. This includes new-build houses, flats, apartments, and conversions of existing buildings into residential use.

Poor sound insulation is one of the most common complaints from occupants of new homes. Inadequate acoustic separation can lead to noise complaints, disputes between neighbours, and even legal action. Part E sets minimum performance standards to ensure that all new residential properties provide an acceptable level of acoustic privacy.

Without passing sound insulation test results, your building control body cannot sign off the relevant plots. This directly impacts your ability to complete handovers, sell properties, and close out your project. Commissioning acoustic design consultancy at the design stage and testing at the right point in the build programme helps you avoid costly remediation work and project delays.

Our Sound Insulation Testing Process

UK Building Compliance delivers a professional, efficient sound insulation testing service designed to keep your project on track.

1. Quotation and scheduling — We assess the number of tests required based on your development layout and the Part E sample requirements. Our team provides a clear quote and schedules testing to fit your build programme.
2. Site preparation guidance — We advise on the condition your properties need to be in for testing, including completion of party wall and floor finishes, and access requirements between adjoining units.
3. Airborne testing — Our technicians set up loudspeaker equipment in the source room and calibrated sound level meters in the receiving room. Multiple frequency measurements are taken and averaged to produce the airborne sound insulation result.
4. Impact testing — The standardised tapping machine is placed on the party floor, and sound levels are measured in the room below across the required frequency range.
5. Results and certification — We calculate the results against the Part E performance criteria and issue your sound insulation test certificate. If any tests do not meet the required standards, we advise on remedial measures.

What's Included

• Pre-completion sound insulation testing to Part E standards
• Both airborne and impact testing as required by the project
• Assessment of required sample size based on your development layout
• Calibrated, professional-grade acoustic testing equipment
• Sound insulation test certificates for building control submission
• Guidance on remedial measures if tests do not initially pass
• Coordination with other testing services including air tightness testing and ventilation testing

Who Needs Sound Insulation Testing?

Sound insulation testing is required for a range of residential construction projects:

• New-build houses with party walls — Semi-detached and terraced houses sharing walls with adjoining properties.
• Purpose-built flats and apartments — All new-build flatted developments with party walls and/or party floors between dwellings.
• Conversions — Properties being converted into flats or multiple dwellings, including barn conversions, office-to-residential conversions, and house-to-flat conversions.
• Student accommodation and care homes — Purpose-built accommodation with shared party structures.

Developers, housebuilders, architects, and housing associations all rely on sound insulation testing to demonstrate Part E compliance and achieve building control sign-off.

Why Choose UK Building Compliance?

UK Building Compliance has carried out thousands of sound insulation tests across the United Kingdom, working with developers and housebuilders on projects ranging from single conversions to large multi-unit developments. Our technicians are experienced, professional, and thorough.

We hold accreditations with ATTMA, Stroma, ABBE, BPEC, Elmhurst, and UKAS, ensuring every test meets the highest professional standards. Our complete building compliance service means your sound testing can be coordinated with air pressure testing, ventilation testing, and SAP calculations — reducing the number of site visits and minimising disruption to your build programme.

Based in Hinckley, Leicestershire, we provide nationwide coverage with competitive pricing. Call us on 01455 242297 for a free quote.