The Wilton Fire Department managed to prevent a house from suffering fire damage, even though its attached garage was heavily damaged late Thursday night. Firefighters responded to an emergency call for a structure fire at 379 Hurlbutt Street around 10:50 p.m., and discovered a two-story, two-car garage \u201cheavily involved\u201d in fire, according to Chief Ronald Kanterman. Although damage to the garage was severe, the fire did not affect the house. \u201cIt\u2019s what we call a good stop,\u201d Chief Kanterman said. The residents were not home, he added, and there were no injuries. The homeowners credited the "excellent" response by the fire department, adding that except for very minor smoke damage, the house was completely saved. The cause of the fire is under investigation, although the homeowners speculated their lawn mower may have been a factor. They told The Bulletin they had been using it heavily until 7 Thursday evening. \u201cWe sent everything we had,\u201d the chief said when asked how many pieces of equipment responded. The initial response included three fire engines, then off-duty firefighters came in with a fourth engine. They had the fire under control in about 40 minutes. Fire departments in Georgetown, Weston, New Canaan and Westport sent tankers in mutual aid and Westport covered the Danbury Road fire headquarters. Chief Kanterman said he did not know who called in the alarm.