Emergency services arrived at Market Place in the town at around 9.15am after a shop manager reported hearing voices coming from the roof
Fire crews were helped by a local photography company who used a drone to pinpoint their location.
A fire service spokesman said they were ‘immensely grateful’ to the photography company for their assistance.
The teenagers were brought safely to the ground around two hours later with the help of the Aerial Ladder Platform from Lincoln South.
Source: ITV