It is highly recommended that you join a professional body. The student price is low and the benefits to your career are great. Upon graduating you can apply for Associate Membership and with a couple of years experience, full Membership. The next step is becoming a Chartered Engineer, two options are available.

CIBSE

The Chartered Institute of Building Services Engineering accredits the course for further learning, if an accredited  BEng (Hons) in Building Services has been awarded. This follows the standard route for becoming a Chartered Engineer and assumes substantial professional experience has been gained.

Institute of Acoustics

Through the Institute of Acoustics and following the non-standard route, you can become a Chartered Engineer. This normally requires a Masters degree in Acoustics, an honour degree and a portfolio of evidence of your professional work, usually this takes at least five years to build. A mentor takes you through the process which culminates in a interview with at least two Chartered Engineers.