Blow out all debris from gutters and insure downspouts are clear. Then blow the debris that came out of gutters from, walkways, sidewalks, driveways and patios. House Wash is done using a process called softwash. Start by checking house electrical outlets and tape up as necessary as well as door key slots. Pre water with low pressure all plants trees, bushes, flowers and shrubs. Using low pressure apply metered water with SH (sodium hypochlorite) and surfactant is optional. Allow to dwell average time is 15-20 minutes, water plants while waiting. Then after dwell time using low pressure rinse all surfaces.