GB - i tell my customers that wfp will get it 85-95% clean.
If they want restoration, then its going to cost more - conny ladders, hand cleaning on and off with upvc cleaner = alot more time
As yet i havent had anyone take me up on the restoration. Because people only ring to have upvc fascias & gutters OR conny roofs cleaned once they are green, then my 85-95% is fantastic to them
HAd a customer who hadnt had her fascias cleaned for 10 years (since they were put up there when the house was built). She expected 60% better and was overwhelmed when they came out at 95%