average cost to pressure wash a deck
$0.54. Get an INSTANT estimate of the cost to Power Wash Deck! Our free calculator uses recent, trusted data to estimate costs for your Deck Power Washing project. For a basic 500 square feet project in zip code 47474, the benchmark cost to Power Wash Deck ranges between $0.31 - $0.54 per square foot* .To estimate costs for your project: 1.ur free calculator uses recent, trusted data to estimate costs for your Deck Power Washing project. For a basic 500 square feet project in zip code 47474, the benchmark cost to Power Wash Deck ranges between $0.31 - $0.54 per square foot* . To estimate costs for your project: