It can be as easy as cleaning carpet and it can be nightmare. Lots of things to go wrong that you can't hide by pushing the pile in the other direction.
Hidden topical sealers that rear their ugly heads as you proceed to cause them to peal.
Cracks and loose grout hidden under dirt that she is convinced YOU caused!
Learning the hard way that stone can't take the same PSI that a porcelain can.
"That grout was not all white and blotchy BEFORE you sealed it!!!!"
"Why are my base boards bulging out like that now?"
Finding out that the last owner color sealed the grout....woops!
The joy of the next day call back to come and look at her Sugar Frosted Terracottas..
A hour long video will only set you up to fail..
Spend LOTS of time on
www.dirtygrout.com and our hard surface room here, do some ride alongs, take the
IICRC class and first of all spend lots of time in tile stores learning to identify everything.