“Very proactive and extremely helpful, especially with technical queries. I would not hesitate to recommend and will certainly be using them again in the future.”



Under CDM2015 regs we have found CASS ALLEN to exercise a level of professionalism and due diligence which is second to none. We would therefore definitely recommend CASS ALLEN as our preferred acoustic consultant, for all of our projects.’


SF - Taylor Wimpey South Thames

“I was very pleased with their technical knowledge and professional approach when dealing with a very awkward purchaser as well as the local authority.”


JH, Telford Homes

“Cass Allen went above and beyond to help with the Acoustic planning performance and conditions regarding the Greenwich Creekside project…”


LM, Capita plc

“Good comprehensive reports and advice at all design stages. Very flexible and professional, provided attendance at acoustic cladding tests at short notice.”


DF, Berkeley Homes

“Cass Allen have assisted us on a number of our projects. I’ve been impressed with their thorough and professional approach.”


MT, Lark Energy

Wishing you a ‘quiet’ Christmas

We have put together a guide with some tips and tricks to ensure you get a quiet and peaceful Christmas break. Please click to read the Cass Allen Guide to a ‘quiet’ Christmas.

Guide to a 'quiet' Christmas

We will be enjoying our peace and quiet from 5pm on Friday 22nd December until 9am on Tuesday 2nd January.

This year we have donated to Momentum, a very worthy charity that offers support to families during long term illnesses. If you would like more information about what they do or to donate yourself please click here.

May we take this opportunity to wish you a joyful Christmas and a Happy New Year.



Get in touch

We hope you’ve enjoyed browsing our website but if you have any questions feel free to call us to talk through any acoustic issues you may be facing on your projects. The best person who can help with specific queries can be found here.