Latest News

Sound Propagation Level Calculator updated

Our Interactive Sound Propagation Level Calculator has been rewritten to work with modern web browsers.  

Improvements include:

  • Add a second barrier or building
  • Control the ISO9613 barrier attenuation limit
  • No longer Flash-based so it works on all modern devices
  • Save your results as an image
  • Draw on the wavelengths

Check it out at

Previous News

Decibel calculator added to our online tools

We have added a new tool to perform basic arithmetic calculations with decibel sound levels includin...(read more)

MAS Environmental featured in the Parliamentary Review as a representative of best practice

MAS Environmental has been featured in this year's Parliamentary Review:- "a document that loo...(read more)


Mike Stigwood
& Terri Stigwood


01223 441671
or 01223 510430

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14 South Road,
Cambs, CB24 9PB

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