What does it mean when a contractor says he uses low pressure washing methods? Low pressure washing is using very low pounds per square inch (psi) of water pressure to clean with. Contractors using low pressure rely on their cleaners to do the work and the gallons per minute (gpm) to do the washing and rinsing. This method of low pressure, quality cleaners, and high gallons per minute is very effective in cleaning most anything on your property. This method also eliminates risk of damaging your property like forcing water behind your home’s siding or shredding the wood fibers on your deck.
Contractors not using the low pressure method will be using high water pressure to blast the surface clean instead of depending on quality cleaners to do the work. High pressure can no doubt damage vinyl siding, decks, roofs, and even certain types of cement and brick. Make sure you, or the contractor you hire, use the low pressure washing method.