Firefighters in Caledon battled a fully involved house fire for more than five hours on Wednesday afternoon.

Towering flames and heavy smoke filled the air surrounding the house just after 1 p.m. on Old School Road.

Crews arrived to find the garage fully engulfed as the fire spread to the attached home.

No one was injured.

Fire officials are trying to find what led to the fire that caused more than half a million dollars in damages.