Working smoke alarms likely woke the occupants of a home in Raupunga that was all-but destroyed by a roaring blaze on Thursday night.
Firefighters from Wairoa were called to a fire that began inside the ceiling of a property on Putere Rd about 10pm and arrived to find the house fully alight.
A Fire and Emergency spokeswoman said two appliances, one tanker and one truck, were at the scene dealing with the fire until nearly 2am.
She said the property was significantly damaged.