8 Tips for Adding Curb Appeal and Value to Your Home Here are eight ways to help your home put its best face forward. Next: Tip #1: Wash your house's face Tip #1: Wash your house's face Before you scrape any paint or plant more azaleas, wash the dirt, mildew, and general grunge off the outside of your house. REALTORS® say washing a house can add $10,000 to $15,000 to the sale prices of some houses. A bucket of soapy water and a long-handled, soft-bristled brush can remove the dust and dirt that have splashed onto your wood, vinyl, metal, (11 comments)