Sound testing rates the amount of sound the soundproofing insulation installed in a building for reduction of sound. It checks the amount of sound transmitted and the amount reduced by the building’s partitions. New structures and reconstructed developments have been mandated by the Building Regulations to test for sound upon completion, since Approved Document E (ADE) was reappraised in 2003.

Not doing so is a costly venture for developers and contractors as Building Control will not give a completion certificate for developments that have not undergone the test. We know how important a sound insulation certificate is to you. That is why we work hard to make certain that you get the certificate quickly. We pride ourselves on the facts that our sound insulation certificates are issued with speed and efficiency.

Our highly qualified site engineers can arrive on site when needed. They will provide verbal results after the test and a written report will be sent to you within 24 working hours.

Our Guarantee

  • Over 15 years experience
  • State of the art equiptment
  • Onsite Support
  • Next Day Report Turn Around
Call us today for a quote on 020 3372 4430
Or you can email us at info@af-acoustics.com

What Sound Insulation Testing Does

To adhere to Building Regulations ADE requirements, adjoining walls, floors and ceilings in a building will have to be tested, except where licensed Robust Details were used. Sound insulation tests examine airborne and impact sound moving between separating walls and floors. The tests include party walls and floors between structures or between spaces within a new development.

What is involved in a Sound Test

Workers on a site will vacate the premises while the sound test is being conducted. This will facilitate an enabling and quiet environment for the tests to be carried out. The process of a sound test is determined by the size and complexity of the site being tested. Most of the time the test will be conducted in 90 minutes, for a simple, regular sized construction.

Once this is done, the sound test engineers give temporary results while they’re still on the site. They will also provide suggested solutions to possible problem areas noted during testing.

The entire report and individual sound test certificate will be sent to you the day after. The way a sound test is conducted is determined by ADE of Building Regulations. It mandates that in all developments, every 10 units in a group or sub-group will undertake one set of tests. It explicitly states what a sub-group is in Section 1. There are three types of grouping criteria that need to be assessed: dwelling houses (including bungalows), flats and rooms for residential purposes, such as student accommodation and hotel rooms, care homes etc. The volume of testing carried out on each group is written below.

Why Should Your Dwelling Undergo Sound Testing

Document E of Building regulations, from 2003, made it compulsory for all new UK constructions to undertake a pre-completion sound test. Results for impact sound should be 62dB L’nTw or less while those for airborne sound insulation should be 45dB DnTw+Ctr or more. This Approved Document, as part of UK Building Regulations helps to ensure that new buildings are constructed to minimum standards that provide reasonable resistance to sound from other parts of the same building and from adjacent buildings. Sound testing is essential due to the fact that sound impacts us wherever we are, whether it’s at home, leisure or the office. Reduced noise in the partitions and flooring of a structure leads to greater ease and a more efficient environment.

Sound insulation and speech privacy are important because not having them results in an unfavourable environment for those living in the development. For example, in a block of flats, your upstairs neighbour may (and not unreasonably) like to have friends over at the weekend, resulting in the playing of loud music. However, the downstairs occupant may be working nights and sleeping throughout the day, thus any inadequate sound insulation between these two flats would cause great disturbance and distress to the downstairs occupant. Sound insulation impacts people’s lives in various ways. Sound insulation is also effective in buildings that have flats with mixed uses. If the building passed the sound test, you can be sure that noise reduction will be effective.

How to Know if You Need Sound Insulation Testing

You need a sound insulation test if you’re:

  • Constructing a nursing home or residential rooms like hostel or hotel rooms,
  • Converting a building with a single dwelling into flats,
  • Constructing a property with two or more units,
  • Using designs without Robust Details to build

Building Regulations Part E discusses sound testing in detail and has made it a requirement.

Either you follow the pre-completion sound testing process stipulated therein or you use Robust Details. This way, you have conformed to the requirements. If you choose the latter, you must use Robust Details which are a approved design details for partitioning walls and floors. The Robust Details scheme means that testing is not necessary, but is strictly limited to the design given in the Robust Details approved list. Sound testing provides more flexibility by allowing different designs and is often therefore more cost effective in many ways compared to the Robust Details Scheme. When on-site pre–completion building sound tests are taken, architects have more scope with their design and can increase the sound insulation performance of the construction.

Cost of Sound Testing

We can send quotation that’s completely free of charge and is based on the kind of development you have. We have tested all types and sizes of construction in the UK and issue a report and sound test certificate within 24 working hours. We offer one of the best prices. If you get a better price from another company, let us know and we will try to beat it.

When can I carry out the sound insulation tests?

A sound test is usually conducted just before the construction is completed, and when all the doors and windows have been fixed. However, we can test your building earlier to check for problems. For your sound tests to be conducted successfully we need the property to be quiet, with workers not near the rooms to be tested during the test time (a noisy environment makes the test difficult and sometimes unsuccessful). We also need access to all units unless the test program has been compiled earlier. Finally, we need 240V power supply.

The Procedures of a Sound Insulation Test

The method of taking the test is not complex and our sound test engineers can explain it thoroughly on site, if you wish. The separating walls undergo airborne tests while separating walls and floor undergo airborne and impact tests.

A pink or white noise generator and a large speaker is used for the test in the biggest room between the two undergoing testing. The sound generated and received is measured with a sound level meter. The meter is also used to measure the background sound, to ensure that it’s 10dB lower than the source sound, as is the standard. More background sound leads to creating a higher source sound. When conducting airborne sound insulation tests, two speakers are placed in each source room. The noise level in the receiving room is measured to get the sound difference between the source and receiving room.

This basic level difference is then ‘corrected’ to allow for the reverberation time (the time is taken, in seconds, for a noise source to decay by 60dB) and the existing levels of background noise monitored whilst in the receiving room. Impact tests are conducted by fixing a tapping machine on the floor. The room under it is then measured for the noise levels. Calculations are undertaken, and results achieved. The results are crosschecked to ensure they meet Document E of Building Regulations target. This is of course, a somewhat simplified explanation without the various mathematical formulae involved, but helps to explain the process.

Call us today for a quote on 020 3372 4430
Or you can email us at info@af-acoustics.com

What Sound Insulation Testing Equipment do we use?

Our high-tech sound insulation machines are UKAS calibrated and our accredited expert engineers conduct the test using Building Regulations present criteria. An airborne test is used to check how much sound is moving through the air between partitions. We use a loudspeaker and noise generator that produces white or pink noise on one side of the partition, and measure with a sound level meter on both sides to calculate the sound insulation performance of the partition. Sound level meter is also used for impact tests. Alongside it, a tapping machine that drops metal hammers is used. The tests are carried out in rooms suitable for residential use like bedrooms, lounges and kitchens. Test findings are compiled in a report and issued to the client. The report will be accepted by Building Control and used for signing off your project.

These kinds of properties should undergo a sound insulation test:

Sound Insulation Testing checks for both airborne and impact noise travelling through new or existing buildings. This may affect party walls and floors between new and existing buildings, or between spaces within a new development.

Two or more new build dwellings or flats

With the sound test, you can be certain that the property has a good acoustic performance.

Redevelopment of a building with a single dwelling into flats

When the development is completed, ADE of Building Regulations should be checked, and sound insulation tested accordingly.

Designs without Robust Details

The Robust Details scheme was set up in 2004 by Robust Details Ltd as a way to help architects and builders design and construct separating elements with the confidence that the separating wall and/or floor will be capable of achieving the sound performance parameters in Approved Document E, and comply with the Building Regulations. If the building design does not strictly adhere to Robust Details, a sound insulation test becomes necessary to meet Building Regulations. The minimum criterion is based on various factors such as the purpose of the development and if it is a permanent dwelling or rooms to be used as residences like students’ accommodations and hotels.

Which areas of the UK does AF Acoustics cover?

AF Acoustics is an acoustics design services and consultancy company. Our clients can be found nationwide, especially in Bowes-Park. Our clientele also include government agencies, architects, and organisations involved in planning and environmental consultancy. You can find our consultants all over the south east region of the country. That way we give you the most affordable quotation that will meet your budget needs.

Why you should pick AF Acoustics for your sound testing

Our sound insulation testing expertise at AF Acoustics have aided several home and business owners in Bowes-Park. We come highly recommended by our clients because of the guarantees when you work with us

15 years’ experience

With more than 15 years of experience, we have a deep knowledge of our customers’ industry and provide actionable strong advice tailored to their needs. By doing this, we have been able to continuously satisfy clients in the UK and meet their acoustic needs for over 15 years, providing great value for money.

Competitive prices

Compared to other sound insulation testing service in Bowes-Park, our prices are extremely competitive. This is because we want you to be able to afford the best expert sound testing service there is. To get a free quote for your dwelling, contact us today.

Prompt and productive consultancy

We will listen to your needs, present you with robust solutions and deliver acoustic consultancy through our considerable experience. When you contact us for expert direction, we make it our utmost priority and convey exact answers quickly. We suggest compelling solutions that are in accordance with your present and long-term needs.

Flexible test dates

Your convenience is essential to us. This is the reason we provide you with adaptable choices that allow you to pick test dates that are most advantageous for you. If you want to schedule sound insulation testing in Bowes-Park, phone or email us immediately.

Next day reporting

Getting your report quickly ensures you can take immediate action. We work towards issuing test reports within the next working day, despite the size or complexity of the construction. That way, you can take immediate action on the recommendations given. Our reports are thorough and cover all the important issues.

The sound testing services we provide

AF Acoustics provide a scope of exhaustive and detailed acoustic solutions for clients across the country, making certain our techniques have the best quality and performance. To find out more about we can help you with your acoustics needs, call or email us right away.

Airborne and impact tests for floors/ceilings

These are taken on separating floors/ceilings between residences. The measurement of the extent of noise transmitted directly through impact from one adjoining room to another is known as impact testing. The adjoining floors/ceilings of rooms intended as residences usually have both impact and airborne sound tests.

Testing in line with Part E of Building Regulations

AF Acoustics sound testing adheres to ADE which stipulates information bearing on the sound resistance and performance of a property. The impact sound test of new dwellings should be 62dB L’nTw or less and airborne sound insulation 45dB DnTw+Ctr or more while impact results for reconstructed properties should be 64dB L’nTw and airborne sound insulation 43dB DnTw+Ctr or more.

Sound Insulation Testing

Our services and expertise is unbeatable and we are glad to work with our clients to help pass their sound insulation tests. A new dwelling may have to undergo an airborne and impact test to meet the benchmark of greater than 45dB DnTw+Ctr and less than 62dB L’nTw. When working with AF Acoustics, developers and project managers get acoustic advice right from the start of the building project. That way, they can make sure their developments have a good sound performance. Contact us today for more information about our sound testing services or to book a no obligation quote, free of charge.

Call us today for a quote on 020 3372 4430
Or you can email us at info@af-acoustics.com

BB93 Acoustic Design testing in Schools

Building Bulletin 93 (BB93) describes the minimum requirement for the acoustics of a school building. It also stipulates how a school can conform to Building Regulations. If you’re developing a new school in Bowes-Park, we can test it to find out if it aligns with BB93.

Acoustic design details

We have provided acoustic design services and consulting to various clients with different types and sizes of dwellings. We also give customised solutions and have a deep understanding of acoustic merchandise. Due to this fact, we will provide precise design answers suitable for the specific needs of the construction.

It is critical to get right professional assistance ahead of schedule from a highly qualified acoustic specialist. AF Acoustics can assist you with identifying the right acoustic propertiesfor your project at very early on in the construction process and tell you the best way to get them, utilizing a deep know-how of acoustic design.

We are able to help with:

Creating acoustic detail plans for architects involved in residential construction that conform to Document E of Building Regulations, BS8233 and so on. Detail plans in commercial, educational and healthcare project for adhering to the prescribed standard. Specifications and design details that enable good sound insulation and reduction of noise in residences. Public address and sound reinforcement (conference rooms / lecture theatres etc.)

Call Our Experts Now For A Sound Insulation Testing Quote

AF Acoustics is a leading acoustic consultancy. It provides the following services: architectural and building acoustics, acoustics design, survey and investigation in the field of planning and noise, and examining and controlling air vibrations while conducting air leakage tests. We want to give you expert guidance and provide working solutions, whether you are an individual or an organisation. For a quotation, call or email info@af-acoustics.com

020 3372 4430 Contact us

Provide us with the following data

When contacting us for sound insulation testing quote, we will need you to provide the following information

Location of property

Where is your development situated in Bowes-Park

Number of dwellings in the structure

Number of dwellings on the property

Total number of floors

For the right calculation of your quotation, tell us how many levels are in your building.

Configuration of dwellings (no. of units per level)

How many units are on each floor? Knowing this will help us give you an appropriate quotation.

Kind of structure

The type of building, as different building types typically require a different testing.

New property or reconstructed dwelling

These two go require different types performance, so let us know which one it is and you’ll get an accurate test and quotation.

Sound testing regulations

Our sound insulation tests are conducted in accordance with Part E Building Regulations in England and Wales and Section 5 of the Scottish Building requirements. You can also get credits for Code for Sustainable Homes and EcoHomes environmental assessment projects.

Part E of building regulations resistance to the passage of sound (England and Wales)

Our expert engineers can issue certificates for the sound insulation testing. They can visit the site and conduct the test that will lead to getting a certificate which is in line with Building Regulations and Building Control requirements.

Standard division for developments (Scotland)

Section 5.1 of the Scottish Building Standards states “Every building must be designed and constructed in such a way that each wall and floor separating one dwelling from another, or one dwelling from another part of the building, or one dwelling from a building other than a dwelling, will limit the transmission of noise to the dwelling to a level that will not threaten the health of the occupants or inconvenience them in the course of normal domestic activities.” Tests should be performed after construction, using the procedures given in annex 5.C. of the Scottish Standards. Standard 5.1 does not apply to: fully detached houses or roofs or walkways with access solely for maintenance, or solely for the use of the residents of the dwelling below.

How to get a pass certificate for your sound test

Make sure you pass your sound test by having efficient sound insulation included in the building design. It saves time and money and helps you avoid repair work and re-test expenses. We offer design services that help you construct separating walls and floors with good sound performance that meet ADE demands. Whether you want some initial tests on your project, or comprehensive reports at the end, we can help you at the level that you need. Take the following action to give your building the best opportunity to pass the sound insulation test: Inner and outer doors and windows have been installed and can be used Skirting boards are fixed are sealed Light fittings and switches and plug sockets are fitted and working. Our expert acoustic consultants work with planners, developers, architects and contractors from the beginning of the design stage till when the property is finished to ensure it meets the conditions of Document E 2003.

Investigation and report certificates

We try to issue a certificate to give you the details of the test evaluation and report, by the next day. After the test, our site engineers will provide verbal results and advise you on how to solve potential problem or future areas of concern. 6. Even before you get the certificate, you get the verbal results of the test. First, our completely skilled and competent sound insulation test engineers give you a verbal result at the site. They also offer advice on potential problems. Then the test report certificate is sent to you within 24 working hours, when feasible.

What do the results look like?

A sound insulation certificate will be issued whether the Sound Testing results and report indicate compliance with Part E of the Building Regulations or not. In the event that some part of the building does not meet up with the conditions of Document E, remedial work and a retest is required. We give remedial design advice to help you achieve Building Regulations standards.


Sound Insulation FAQ’s

The minimum requirements depend on a variety of factors such as if the development is a new build or refurbished, whether the development is intended to be a permanent dwelling, or classified as “rooms of residential purposes” (e.g. hotels, student accommodation, etc).

New builds must achieve impact sound test results of no more than 62dB L’nTw and airborne sound insulation of no less than 45dB DnTw+Ctr. Converted properties must achieve impact results of 64dB L’nTw or lower and airborne sound insulation of no less than 43dB DnTw+Ctr.

Flanking sound (or flanking noise) is sound that transmits between spaces indirectly, going over or around, rather than directly through the main separating element. This can allow sound to transmit between spaces even though the main separating element itself provides good acoustic insulation. Engaging our services at an early stage allows us to check designs and add necessary measures to prevent this occurring after construction. In the worst cases, flanking can exceed the direct transmission and lead to a failed test, despite highly specified partitions.

In the case of impact sound, the building construction is caused to vibrate as a result of a physical impact, such as footsteps on floors or stairs. The resulting vibration is radiated into other rooms in the building.

We can provide preliminary results on the day of test. We strive to deliver next day reporting in all scenarios regardless the complexity or size of the project. The delivered report will be comprehensive and detailed, to ensure all relevant issues are covered. The best recommendations can also be sent in a separate report or email.

We can normally conduct up to a maximum of three sets of tests per day. One set is two airborne floor tests, two airborne wall tests and two impact floor sound tests.

When it comes to the acoustic tests, a full set of tests should take approximately 90 minutes.

The requirements of sound insulation testing are fully detailed in the Building Regulations Approved Document, available here [link], under Part E (2003).

This requires all residential buildings to be tested when they involve walls and/or floors. These are known as party elements.

Assuming no tests are failed, building control bodies should stipulate at least one set of tests for every ten dwelling-houses, flats or rooms for residential purposes in a group or sub-group.

New builds must achieve impact sound test results of no more than 62dB L’nTw and airborne sound insulation of no less than 45dB DnTw+Ctr. Converted properties must achieve impact results of 64dB L’nTw or lower and airborne sound insulation of no less than 43dB DnTw+Ctr.

We recommend that if possible, we are contacted before a build to provide a design review and advice on how to meet quality standards.

Should the test fail, we can offer advice on how to improve the sound insulation. We have consulted on hundreds of building projects in the past, and have ensured all of them have met the building regulations. If a sound insulation test fails, we can give remindial advice to ensure the tests passes later.

We understand that most clients would prefer testing to take place as soon as possible. Once you get in touch we will schedule the test at the earliest available opportunity.

You can call us today to set up an appointment for sound insulation testing. Our scheduling is flexible so that you can get the service you need at your convenience.

Ideally, a test should be carried out as early as possible as problems are more difficult to fix the further along you are. Where possible, it’s recommended that testing is carried out before kitchens or bathrooms are installed. The minimum that we require to be able to carry out a test is:

  • All doors, windows and seals should be fully fitted and closable
  • All electrical fittings should be fitted and working
  • 240V mains power must be available on-site in all rooms
  • Gaps in walls and floors should be fully sealed
  • All walls and ceilings should be plastered
  • There should be no holes remaining in floors or ceilings
  • Testers will require access to all rooms on all levels

Pre-completion sound testing is a building regulation requirement for all purpose built & “formed by material change of use” (i.e. refurbished) properties since 2003. Sound testing is undertaken in a percentage of properties in each development to ensure that the separating walls & floors between habitable rooms of neighbouring properties meet the minimum requirements as defined by Approved Document E, commonly referred to as ADE.

From 2003, Approved Document E states that all new UK builds must undergo pre-completion sound insulation testing. New builds must achieve impact sound test results of no more than 62dB L’nTw and airborne sound loss of no less than 45dB DnTw+Ctr. Converted properties must achieve impact results of 64dB L’nTw or lower and airborne sound loss of no less than 43dB DnTw+Ctr. Approved Document E sets out details pertaining to the resistance to the passage of sound.

This Approved Document, as part of UK Building Regulations helps to ensure that newly built or converted houses and residencies, flats and residential spaces and other relevant buildings are constructed to minimum standards that provide ‘reasonable resistance to sound from other parts of the same building and from adjacent buildings.’ All of our tests are fully compliant with Approved Document E and our expert team have been carrying out compliant tests for many years, for thousands of satisfied customers throughout the UK.

We understand the sectors our clients work in. Our advice is not only technically robust but also practical and helpful to our client’s particular situation. At AF Acoustics, we always look at the bigger picture and work towards the ultimate development goal.

In order to provide you best solutions, we will listen to your needs, present you with robust solutions and deliver acoustic consultancy through our considerable experience. Our ever-expanding knowledge-base allows us to provide cost-effective and streamlined solutions.

Our consultants are very experienced and have a proven track record on both small scale projects and major projects. As we are a lean and small company, we have lower overheads and therefore offer exceptional value for money.

Airborne sound (or airborne noise) is sound that is transmitted through the air. Airborne Sound Insulation is the insulation against noise originating in air, e.g. voices, music, motor traffic, wind. The greater the airborne sound insulation between two rooms, the lower the resulting sound level in the receiving room.

This is unlike Impact Sound Insulation that protects against noise originating directly on a structure by blows or vibration e.g. footsteps above, furniture being moved, drilling and hammering the structure.

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Call us today for a quote on 020 3372 4430
Or you can email us at info@af-acoustics.com
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Adrian Finn

AF Acoustics lead Acoustic Engineer, Adrian is your first port of call for all sound insulation testing questions enquiries and surveys.

Working Hours

  • Monday 08:00 - 18:00
  • Tuesday 08:00 - 18:00
  • Wednesday 08:00 - 18:00
  • Thursday 08:00 - 18:00
  • Friday 08:00 - 18:00
  • Saturday Closed
  • Sunday Closed