Fire crews from Lancaster and Morecambe were called to a house in Heysham on Tuesday evening after fire broke out in the chimney.
Firefighters were called to the scene in Westminster Road just before 5.30pm after a member of the public reported seeing smoke in a first floor bedroom.
When they arrived they found a small amount of smoke in a second floor bedroom.
Upon investigation with a thermal imaging camera they found the incident involved the chimney.
Crews assisted in dealing with the fire in the chimney and made the scene safe. There were no casualties.