Firefighters were called to the home in the town located about 500 kilometers north of Montreal, at about 3 p.m. after someone working at a nearby home spotted the fire.
A video posted to YouTube shows the flames erupting from the front door of the 4th Avenue home as firefighters arrived.
The bodies were found after emergency crews extinguished the flames. Pierre Tremblay, spokesperson for the Sûreté du Québec, said the bodies were transported to the local hospital.
The identity of the victims has not yet been determined.
The fire is considered suspicious and the cause is still under investigation.