If the windows are older or more delicate, it's best to use a lower PSI (between 1300 and 1600 PSI) to avoid damage. Optimal results are obtained with a pressure washer that operates in a range of 1200 to 1500 PSI. This lower pressure setting ensures that the cleaning process is effective without risking damaging window components. The ideal is to choose a pressure washer with adjustable settings, one that can operate between 1300 and 1700 pounds per square inch (PSI).
This PSI range is powerful enough to provide deep cleaning without damaging windows. If the window frames are made of aluminum or vinyl, pressure washing shouldn't be a problem. Wood-framed windows require special attention to detail. Check the glazing between the frame and the glass; it must be intact and solid.
Take a moment to observe the window stripping and the caulking around the frame where it meets the cladding. Both must be in good condition so that water cannot penetrate the structure. Use a Ryobi cordless pressure washer with a bottle with an attachment for mixing cleaners. Mix dish soap (such as Dawn) and water to spray windows.
Let it sit for a while, rinse with the pressure washer and allow them to air dry. You can also use a pressure washer to clean windows that are out of your reach, Trezza says, but you'll have to be careful to avoid damaging them. It can be a little difficult to control, he says. Some pressure washers allow you to adjust pressure, which can make it easier to control the flow. Precautions to be taken include setting the washer to the lowest available psi, using a wide spray nozzle, and spraying windows at an angle rather than from the front.
And always make sure that the windows are tightly closed to prevent water from entering. You can pressure wash window screens without any problem if you use a lower PSI setting to avoid damaging the delicate screen material. Whether you choose to pressure wash your windows or opt for traditional cleaning methods, the key is to prioritize the safety and durability of your windows.
