It is incredibly uneven, so I am going to take away part of the old concrete floor and renew it. I believe it is past levelling with any screed. The previous owner must have laid it whilst drunk.
When I have done this, I will need to level it with screed.
Can anyone reccomend a self levelling floor compound that is easy to use and to obtain?
I have never done this before, so is it really self levelling if I just spread it as evenly as possible?