can anybody please help me with my kitchen floor, it is very uneven, i need to know if i need a new floor or if i can get away with leveling it out. How do i know if i need a new one and if so how do i do it, i would really appreciate some help on this matter, as i dont want to get ripped off by having someone in, please help me if you can asap, it is in my kitchen and is concrete.