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Sound Transmissions
Paths can be interrupted by insulation and blocking air paths. A material's insulation is governed by mass, stiffening and damping...more

Sound Insulation
Two parameters describe sound insulation; Dw and Rw. Dw is the insulation between rooms. Rw is the lab-tested insulation of a wall/floor...more
Cobham - Commercial Part E Testing - 020 3390 0301
The office that covers this area is: London
Phone Number: 020 3390 0301 Email: cobham@e2consultants.co.uk
E2 Consultants delivers Sound Insulation Testing for new or refurbished dwellings in compliance with Part E of the Building Regulation in Cobham and nationwide.
We actively encourage clients to seek our services at the earliest opportunity as it is possible that the noise mitigation measures required in some instances, could dictate significant changes to external and internal layouts. Therefore our early involvement could remove the need for costly revisions.
As part of our service in Cobham we can also offer advice on the additional requirements of Approved Document Part E including the control of reverberation in common areas and the performance of internal walls and floors.
Our consultants at Cobham can guide you through the process to ensure the best possible chance of achieving sound test passes.
E2 Consultants are specialists in the provision of high quality and practical acoustic consultancy to both the public and private sectors; typically working with residential and commercial developers, architects, planning consultants, industry, local planning authorities and environmental services.
Call 020 3390 0301 or email cobham@e2consultants.co.uk to get a quote from one of Cobham consultants..
Pre-Completion Testing - The following table outlines the sets of tests required for new and converted properties:
Property Types | Test Requirements |
Dwelling-houses Including bungalows |
Normally, one set of tests should comprise of two individual Sound Insulation Tests (SITs)(two airborne tests):1. Living room (wall) And 2.Bedroom (wall) |
Flats with separating floor but not walls |
Normally, one set of tests should comprise of four individual SITs (2 x airborn, 2 x impact): 1. Living room (Airborn), 2.Living room (Impact), 3. Bedroom (airborn) and 4. Bedroom (Impact) |
Flats with separating floor and walls |
Normally, one set of tests should comprise of six individual SITs (4 x airborne, 2 x impact): 1. living room/living room (floor, airborne), 2. living room/living room (floor, impact), 3. bedroom/bedroom (floor, airborne), 4. bedroom/bedroom (floor, impact), 5. living room/living room (wall, airborne) and 6. bedroom/bedroom (wall, airborne) |
Rooms for Residential Purposes |
To conduct a set of tests, the sound insulation between the main rooms should be measured according to the principals set out above for new buildings and material change of use, but adapting them to suit the circumstances. |
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For further Commercial Part E Testing information for your area, be sure to check out Sound-Testing-London.co.uk.
Our other services include:
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Commercial Part E Testing can also be known as:
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Copyright 2025 E2 Specialist Consultants Limited
Company No. 06728970
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