The pair triumphed in the Aerials, held in association with Campaign, with their "killer Katy" spot for ITV.
The ad supported the recent Coronation Street storyline that saw Katy Harris kill her father after a heated row. It features the familiar Coronation Street theme tune, mixed with the infamous Psycho shower-scene sounds.
The joint runners-up for the award were Tom Drew and Adam Mandlelstam at M&C Saatchi for their British Airways execution "cheesecake - Heathrow to New York", and Jeremy Carr at Miles Calcraft Briginshaw Duffy for his ad for the Metropolitan Police's anti-domestic violence drive, called "whisper".
The award was judged by Al Young, the creative director at FCB London.
He said of the winning ad: "A great example of 'keep it simple, stupid', which is often the best policy with radio. The oh-so-familiar theme tune to Corrie is mixed intermittently with the equally familiar Psycho shower-scene sting to create a weird cosy/sinister soundtrack to dramatise the recent murder on the Street storyline. Dead simple, dead effective."
The winning ads can be heard at the Aerials website, www.aerialsfoundation.co.uk.
Monthly winners are put forward for nomination for the annual Aerial Awards, held each October and voted on by an audience of more than 400 creatives.