hi everyone. ive come across a group of houses that have cladding on them @ b4 i knock em would like 2 know how much 2 quote em.looks like they were never cleaned .should i chemical them 1st @ScrubbaDubDub then pure water r custys tap water...?? which would b best?? do i charge by d metre @f so how much?? would apprecicate any advice.im an l plate water fed poler from dublin.