Tom Bosley -- who famously played Mr. Cunningham on  Happy Days  -- died this morning at a hospital in Rancho Mirage, CA ...
Average estimates: $250 to $420. Power washers can have pressures of 4,000 psi (pounds per square inch) to lesser pressures of maybe a few hundred and run by gas or electric. This means that professionals will probably use one with less pressure to clean a deck and maybe one with higher pressure to clean a patio.
A professional power washing job can run from $200-$500 or more, depending on the size of your house and the amount of work needed to clean it properly. Pressure washing jobs are generally quoted per square foot of area to be cleaned. Estimate for Do-It-Yourself Pressure Washing: Doing it yourself could run from $75-$500 if you buy or rent a pressure washer. Estimate for Professional Pressure Washing: Hiring a professional could cost from $200-$500, depending on the size of your house. Pressure washing jobs are generally quoted by square feet of area to be cleaned.