An alert mail carrier called Easton dispatch to report a house with fire rolling up the side towards the roof on Friday.  Firefighters got on scene within minutes and were able to hold the flames to the exterior.  Officials say timing was critical with this one as a few minutes more would have made a big difference in damage to the house.  Additional Easton volunteers and career firefighters responded for search, ventilation and overhaul.  Easton Police and EMS were on hand to help.  Fairfield, Trumbull and Weston Fire Departments also responded.