Firefighters are in the final mop-up stage at the fireground on Loburn Whiterock Road, Loburn in North Canterbury, FENZ said.
Three crews are working in the area on Sunday hunting down and extinguishing hotspots.
The Loburn fires started on Friday afternoon and burned through approximately ten hectares destroying two houses, a converted church, ten sheds and a number of cars and machinery.
Overnight crews at the vegetation fire on Racecourse Road in Amberley extinguished a number of hotspots, FENZ said.
On Sunday, five crews, assisted by one digger and tankers are back on the fireground to continue this work.
The Amberley fire started on Friday afternoon and burnt an area roughly one kilometre by 500 metres, forcing nearby residents to evacuate their homes.
FENZ is urging Canterbury residents to take extreme care with all activities that could cause a spark that will set vegetation on fire. All fire permits have been suspended until 8am Monday.
Every household in a rural area should have an evacuation plan in case of wildfire because in the current conditions, fires move quickly and are very challenging to put out, FENZ added.