Window cleaning often takes a lot more effort than just wiping with a rag and window spray. Irrespective of whether you are doing routine home maintenance or repainting the trim on the windows, it is good to learn a few tricks in getting rid of dirt and debris with a pressure washer. Following are the things you should do.
Assess The Problem You Are Dealing With
Take a close look at the panes and see that none of the caulking has started to crumble. Also, ensure that the glazing around the panes is intact. If you are going to re-caulk or re-glaze afterward, refrain from using the pressure washing method until that is over.
Check for and note any spots on the trim that need repainting, because you will be using the pressure washer to loosen some of that paint. The only issue is if the spray is too strong and you accidentally damage exposed wood.
Water The Soil Under The Window To Wash
Soak the soil a bit, so that later, if any chemicals in the washing soap drip down, will be diluted to a degree.
Use Special Soap Concentrate
Add multi-purpose soap made expressly for pressure washers, into the reservoir you will draw from. On most soap packages, they mention that it is safe for siding, windows, etc. Install the soap tip to the end of the sprayer wand, so that when you activate it, this will strengthen the escaping stream of water.
Apply Soap Using The Pressure Washer
Turn on the pressure washer and then start the wand. With the soapy spray pointing at the trim, keep the wand tip aligned at 45 degrees to the window. This is to help lift any dirt or debris from the trim, sill, and pane. It is also a lot more effective than simply blasting a straight spray. It gets loose paint flakes off, leaving the window trim ready for a new coat of paint.
Rinse The Windows
Turn the pressure washer off, and then switch the tip to a general use set. This will have an angle of 15 to 20 degrees and is good for removing soap from the surface, as well as loosened dirt particles. Spray from top to bottom to clean the window completely.
After you are done, see that the glazing and caulk are in good condition, and then allow some time for the window to dry before priming it. Check out our other posts for more tips on house cleaning San Jose.