If you really want to lower it - rent a scrabbler for 1/2 a day
If you really want to lower it - rent a scrabbler for 1/2 a day
or pour some self levelling screed in the low parts .. so what you have to make good with tile adhesive is not excessive.
With SBR it will stay together at 10mm IME. However we are talking more than that by the time the self levelling is over the top.
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.