Crews were dispatched for a reported working fire on West brook Drive in the Sun Valley section of town.  Stations 43 and 39 were on the initial assignment with 39-7 on scene confirming the fire.  35, 28 and 27 were then added to the box.  Crews encountered a one story single family dwelling with fire in two rooms and spreading.  Crews initiated an interior attack and knocked down the bulk of the fire.  Crews remained on scene for extensive overhaul.  No one was injured in the fire.