i need a pressure wash a block patio 55 square metres. I can price the jet washing, but the sealing is a problem.
I understand i have to wait until its completely dry, then apply the coats. But how long will it take, how much should i charge, and do i need more than one coat?
oh yeah, and there is some oil on the blockwork, been there for a couple of years, anyone know of any chemicals to use to get it up?
thanks guys!
Richy