Cost To Power Wash House 2024 Cost. Smaller areas, like walkways and driveways, are less expensive to power wash than larger. The average cost to power wash, stain, and seal a deck is $1.57 to $4.04 per square foot.

Input your state, service type, extra cleaning needs, and material type, and get an estimate based on square. Learn how to estimate the cost to pressure wash a house based on size, materials, and complexity.