Firefighters were dispatched about 8:45 a.m. Sunday to the 3200 block of 73rd Avenue Court Northwest after a homeowner called 911 to report smoke coming from the garage.
Smoke detectors alerted those in the house of the fire, and one person tried to put out the blaze with a portable extinguisher, but was not successful.
No one was hurt.
Gig Harbor Fire & Medic One firefighters quickly put out the flames before the fire got to the main house.
The fire started in some electrical wiring, and the damage is estimated at $8,000.