Answer by  
                                                                                          icanoutfishyou (1148)
                                                            
                          
                          
                                                          Leveling a floor in order to lay laminate may just involve spreading a patching compound over concrete, or may be as involved as having someone repair the subfloor structure of your home.  If you lay a straight edge on your floor and can see more than 1/8" deviation, you should not install the floor without leveling.