This circuit has a power source, a complete path for electrons to flow, and a resistor as the load. An electric circuit is a path in which electrons from a voltage or current source flow. Electric current flows in a closed path called an electric circuit.
A service will typically charge $660 which includes labor and material, to clean the exterior of a 1200-square-foot house. You can rent a power washer for $160 a day and do the job and save75 percent.
1 Paying a professional to power/pressure wash a basic single level deck with around 250 square feet might cost $150 to $250. 2  Larger decks or those requiring heavy cleaning will cost more; a 20 x 20 foot deck might cost $300 to $400. 3  Expect a minimum charge of at least $100. Expect a minimum charge of at least $100. 2  Renting a pressure/power washer for the day might cost $60 to $80 depending on the unitâs capacity. 3  An economical washer can be purchased for $75 to $150, although a more powerful machine will cost at least $150 to $300. 4  Professional grade washers cost $1,000 to $3,000 or more.