• Monitoring
  • Never expect a Mini to outpace a Ferrari. As well as the right driver, you need the right engine.

  • Most of our projects require noise or vibration monitoring, for which we have the knowledge, experience and – just as crucially – the equipment to meet your requirements. We do this by maintaining a number of our own, sound level meters. They can be used to monitor noise levels over a set amount of time or for instant hand-held measurements such as spot-checks on construction noise or noise emissions from an air conditioning unit.

    Our state-of-the-art equipment means we can download long-term noise data remotely to our Brighton offices and send to our clients a text or e-mail alert the moment noise thresholds are exceeded. We have also developed a unique website where all noise monitoring data can be securely stored, interrogated and provide regular reports.

    When additional or specialist equipment is required we have the best of contacts with leading suppliers to secure them on either a hired basis or bought specifically for your project.

    Whatever your requirements – be it a noise survey for a planning application or monitoring noise on large construction sites –  then 7wa is in pole position to help.

  • Modelling
  • Times change and 7wa remains at the heart of acoustics progression and excellence.

  • When 7wa company founder Neil Anderson became involved in acoustic consultancy more than 20 years ago, all calculations were undertaken by hand, maps poured over to obtain distances and sight lines, and complicated equations performed on a calculator.

    Now the 7wa team undertakes nearly all acoustic calculations using state of the art 3D computer modelling programs, including NoiseMap and CadnaA. They allow us to model site terrain, topographical features, buildings, barriers, earth bounds, investigate different mitigation and site layout options and produce noise contour mapping. The effects of industrial noise, construction noise, road traffic, and rail traffic can all be simulated, too.

    Another programme we use, INSUL, calculates sound insulation for work on buildings and schools acoustics; another part of our range of high-tec services includes bespoke spreadsheet programs for analysing noise data and undertaking more straightforward calculations when 3D modelling is not required.

    No matter what your requirements, we have the technology to meet them.

  • Assessment
  • Awareness of the latest rulings on acoustic standards is an important part of what we do. In fact, it’s essential.

  • Our clients can rest assured that we have a huge database of documents and standards that we can refer to when assessing all work. Our knowledge base grows continually with each rule or standard that is released, or we discover more efficient methods of analysis and assessment.

    Here are some of the more common regulations that we tackle for construction issues, planning conditions to requests from local authorities:

    • British Standard 5228
    • Control of Pollution Act
    • National Planning Policy Framework
    • British Standard 8233
    • British Standard 4142
    • World Health Organisation Guidelines for Community Noise
    • Building Bulletin 99

    It’s not all about the glamour, you know!

  • Reporting
  • It has been said before, but it’s good to talk.

  • Every project we undertake sees regular communication with each client. This ranges from a straight-forward on-site report, with accompanying noise data, right up to the more detailed  noise and vibration chapters of an Environmental Impact Statement.

    We pride ourselves on the quality, simplicity and yet robustness of our reports.  We appreciate that acoustic assessments can seem incredibly technical. Therefore, we work to the principle that our client reports should be written in a way that is understood by all.

    Our communications experience extends to presenting and defending technical and non-technical advice to a range of audiences including architects, planners, and local authorities, as well as public enquiries.

    In short, we know what we are talking about!