Around 1pm companies 1 & 5 were requested as RIT to 43 Park Ave in the City of Derby for a house fire. Derby units arrived wih heavy smoke showing from a 2.5 story house. Engine 2 arrived and was put to work upon arrival assisted Derby crews and Engine 52 continued in for RIT. Derby Engine 11 had the fire knocked down quickly and all searches were negative. The fire was placed under control in under 15 minutes.