flat rate of $400, but can be more if the house is larger than 4000sqft. Pressure washing patios and driveways runs about 40 cents per square foot. Gutter Cleaning- Put simply, it’s $1/foot/story. For those of us that have been out of school for a while, first-floor gutters run $1 for each linear foot, second-story gutters are $2 per foot, third-floor gutters are $3 per foot, and so on, but please don’t make me go any higher than that! *We also try to stick to a $180 minimum on gutter cleaning jobs