Client Feedback

We are unique in that we provide a set of guarantees ensuring all our clients always receive responsive, clear and pragmatic guidance and solutions. These guarantees have led to us delivering well over 3000 successful projects working alongside many of the UK’s leading developers, contractors and architects.


“Competent, smart and flexible, that’s how I would describe CA business model against the needs of a competitive main contractor as Midgard. Over the past few years we have been delivering with Cass Allen, working together as a team, several high end projects and their contribution has always being proven as essential”

Emanuele Calabro, Pre-Construction Design Director, Midgard


“I have worked with Cass Allen on a few different scale projects. They have always been very accommodating and helpful. Chris will always go the extra mile to ensure we receive information when required even with tight time-frame. They are a pleasure to work with and I look forward to any future projects.”

Phoebe Evans-Khan, Trainee Technical Coordinator, Hill


Colmore Tang Construction

“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.”

Antony Plumbridge

Taylor Wimpey South Thames

“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.”

Stephen Farr, Technical Manager, Taylor Wimpey South Thames

Willmott Dixon

“Cass Allen are extremely proactive in their approach, always timely and provide their expertise in a very user-friendly manner. They are exceptionally cost aware and always endeavour to provide cost effective solutions. They are a pleasure to work with and an invaluable member of the design team.”

Luke Cronin, Technical Manager, Willmott Dixon

Telford Homes plc

“Cass Allen have worked on almost every Telford Homes scheme. The repeat business and continued relationship thrives on the service we receive, day in day out. They work very closely with us to provide a solution that works for us. They’re a proven asset to our business.”

Daryl Diggons, Senior Technical Coordinator, Telford Homes plc

Taylor Wimpey South Thames

“Cass Allen has worked on a number of commissions for Taylor Wimpey. Commercially focused, Cass Allen consistently provides a professional and pro-active service which is very much aligned to finding and providing the right solution for the client.”

David Rowland, Technical Manager, Taylor Wimpey South Thames

Telford Homes

“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

Telford Homes

“A thorough and efficient service, very easy to work with and crucially very proactive in finding solutions. The site was positioned over Network Rail & HS1 assets so was particularly sensitive from a noise and vibration perspective and Cass Allen’s work here has proved invaluable.”

RJ, Senior Technical Co-Ordinator, Telford Homes

Capita plc

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

Liam McGuigan, Project Manager, Capita plc

Berkeley Homes (South East London)

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

David Farrell, Senior Technical Manager, Berkeley Homes (South East London)

Berkeley Homes (South East London) Ltd

“I have dealt with 4-5 different members of Cass Allen. I find them all to be very helpful, proactive and very practical. I also found them very willing to engage with Planners to agree a more practical approach than had been agreed by a previous Acoustician working on our behalf.”

Ricky Allgood, Technical Manager, Berkeley Homes (South East London) Ltd

Bouygues UK

“Cass Allen have provided an effective and co-operative approach throughout the duration of the project with advice upon all acoustic matters inclusive of the requirements for Planning, BREEAM, Code for Sustainable homes and acoustic testing. The staff at Cass Allen were always prompt in their response to questions relating to all types of acoustic matters.”

Graham CANN, Design Manager, London South East, Bouygues