The fire was reported at about 8:15 p.m. Wednesday, Aug. 22, said Battalion Chief Rob Lindner of the Woodside Fire Protection District.
Two firefighters suffered minor injuries. They were treated on the scene and stayed on duty, firefighters said.
The residents, a man and a woman, were at home at the time of the fire and made the 911 call, firefighters said.
The fire apparently started in the garage and then spread to the house, including the attic, which meant that firefighters had to ventilate the roof of the house, Battalion Chief Lindner said.
Nine fire engines and several fire agencies helped fight the fire. Woodside district battalion chiefs declared a second alarm after determining the fire was threatening the woods around the home.
While a fire crew maintained a watch overnight, the fire itself was contained within the first hour, firefighters said.
The fire damaged a power line that was arcing during the fire, and melted a gas meter. Firefighters allowed the gas to burn off safely until Pacific Gas & Electric workers arrived to shut off the supply.