Removing the dirt, mildew and other grime that builds up over even a short time can make a building look almost like new. Now’s a good time to bust out the power washer before the weather turns too cold.
Follow these steps to get the best results from your power washing:
Prepare the area. Make sure all windows and doors are tightly closed, and clear out any furniture or other items on the ground nearby. Place plastic drop cloths over any bushes or plants to ensure the detergent doesn’t harm them. Also, cover all light fixtures and electrical boxes.
Presoak first. Use the low-pressure setting to loosen dirt. Treat mildew spots with a solution of bleach, mildew remover and water. If these spots are particularly stubborn, you might also need to hand-scrub them. Rinse the presoak before moving on.
Power wash in sections. Moving the nozzle from side to side over discrete sections, wash from the bottom up, and then rinse from the top down. Use hot water so that you need less detergent.