Cost To Power Wash House 2024. — it may seem odd to pay the national average cost to pressure wash a house—$296—to pressure wash house siding. Water temperatures in the gulf of mexico.
— the cost to pressure wash a house is $0.10 to $0.50 per square foot, according to angi, making the total price for a typical house $100 to $650. The average cost to pressure wash a house is $170 to $360, with most homeowners spending about $265.