STAMFORD — A dog warned its master of a fire that severely damaged a home in North Stamford early Monday morning.

Fire Capt. Philip Hayes said a 911 call came in reporting the fire on Long Ridge Road at 3:35 a.m. Firefighters responded with six engines, a ladder truck a rescue company and a water tanker.

Stamford Engine Company #9 from Roxbury Fire Station was first to arrive on scene to find a well involved fire on the first floor of the home, with flames having blown out a large picture window on the front of the house.

The sole occupant and her poodle mix escaped the fire without injury. The woman told firefighters that her dog came up to her second-floor bedroom and began barking. When she went downstairs, she heard the smoke detectors and saw fire in the living room behind a piano.

Firefighters quickly stretched a hose line into the first floor of the structure and extinguished the main body of fire using water from the initial response resources. The fire was brought under control in approximately 40 minutes. The last crews left the scene at 6:30 a.m..

The first floor of the home was extensively damaged by smoke and heat, with less severe damage throughout the structure, Hayes said.

Hayes said the incident serves as a reminder of the importance of smoke detectors on every floor of a home and in every bedroom. Fortunately, no one was injured at this incident due to the alertness of the occupant’s pet dog and the activation of smoke detectors, Hayes said.

The fire marshal’s office will continue an investigation to determine the cause and origin of the fire.