How to Properly Pressure Wash Your Concrete Driveway

Driveways endure constant abuse from vehicle fluids, tire tracks, and the gradual accumulation of organic growth. Over time, that grey concrete turns a dull, spotted brown that diminishes your home's curb appeal. A professional-grade cleaning isn't just about appearances; it removes contaminants that can slowly erode the surface of the slab if left to sit for years. Executing this project effectively requires more than just blasting water at the ground. You need to balance pressure and technique to avoid etching the concrete or creating uneven lines. When done correctly, your driveway will look like it was just poured, with a consistent texture and color across the entire span.

1. Sweep the Slate Clean. Remove all vehicles, potted plants, and loose debris from the driveway. Use a stiff-bristle push broom to sweep away any rocks, leaves, or grit that could be flung by the water spray.
2. Attack the Stains First. Apply a dedicated concrete degreaser to any visible oil or grease spots. Let the cleaner dwell on the surface for 10 to 15 minutes before scrubbing with a stiff nylon brush.
3. Prime Your Machine. Connect your garden hose to the water supply and the machine, ensuring the water is flowing before you start the engine. Attach the surface cleaner peripheral, which is essential for preventing uneven 'zebra' striping.
4. Wash Top to Bottom. Begin at the highest point of the driveway and work toward the lowest point. Move the surface cleaner in slow, overlapping passes to ensure uniform coverage without missing spots.
5. Flush Away the Grime. Switch to a standard 25-degree spray nozzle to rinse the lifted dirt and soapy residue away. Push the debris toward the lawn or a drain, working from the top down.
6. Spot-Check for Perfection. Allow the concrete to dry completely so you can see if any spots were missed. Once dry, rinse off any debris that landed on the siding or foundation of the house.