Driveways, walkways, patios, fences and siding washed back to the colour they actually are. Pressure and nozzle matched to the surface, because the wrong setting on soft wood or old siding does damage that does not wash off.
A lot of PoCo is family housing that has been in the same hands a while, so first visits are usually a deep clean rather than a maintenance one.
Tell us the address and what needs doing. You get a firm price back, usually the same day.