Hidden Hearing has called in Road Communications for an awareness-building programme in September.
The 40-year-old audiology company offers traditional and digital hearing aids not available on the NHS.
It has 80 hearing centres across the UK and plans to perform 20,000 free hearing tests throughout the month to boost recognition of its services. Its hearing aids cost from £219 to £3,500 for a digital aid.
The brief includes supporting a regional awareness tour, hosting media launch events in London and Southampton, market research, and a media relations programme targeting regional radio and national press.
Denise Crane, marketing manager at Hidden Hearing, said: 'It's important that consumers know they can have access to an expert audiologist on the high street, and understand that hearing technology has moved on dramatically.'
Road senior account manager Heather Mullins, who will lead the account, said: 'Hearing loss tends to lead to social exclusion, particularly among the older generation. It can often creep up on people and so they are not always aware of the impact it is having on their quality of life.
'We want to cut the time it takes for people to seek help and highlight how easy it is to get expert advice.'
Hearing loss is estimated to affect four million people in the UK, with charity Action on Hearing Loss estimating it takes people an average of ten years to seek help.