At 8.30pm on Thursday (28) one crew from Stanground and one crew from Yaxley were called to a fire on Walgrave in Orton Malborne.
Firefighters arrived to find a well-developed fire involving a shed and a gazebo. The fire also caused heat damage to the windows of the house. The crews extinguished the fire and returned to their stations by 10.35pm.
The cause of the fire is believed to be deliberate. Anyone with information should contact police by visiting www.cambs.police.uk to submit an online report or call Crimestoppers on 0800 555111.