How to Pressure Wash a Concrete Driveway

Driveways endure constant abuse from oil leaks, tire marks, and trapped organic growth that slowly dull the appearance of your home's exterior. Over time, concrete becomes porous, acting like a sponge for grime that a standard garden hose simply cannot touch. A thorough pressure wash strips away this buildup, restoring the bright, clean look of new masonry while preventing the slick moss and algae that cause hazards during wetter months. Achieving professional results requires more than just spraying water at the ground. If you use too much pressure or move the nozzle too quickly, you risk etching deep lines into the concrete surface. The secret lies in using the right nozzle tip, maintaining a consistent distance, and utilizing a dedicated surface cleaner attachment to ensure even coverage without leaving behind the dreaded zebra-stripe pattern.

  1. Clear the Stage First. Remove all vehicles, potted plants, and loose debris from the driveway. Use a stiff-bristled broom to sweep away surface dirt and rocks that could become projectiles.
  2. Break Down the Grime. Apply a dedicated concrete cleaner or degreaser to heavy oil or grease patches. Let the solution dwell for 10 to 15 minutes to break down the carbon bonds without letting it dry on the concrete.
  3. Assemble Your Arsenal. Connect the high-pressure hose to the washer and the surface cleaner attachment. Ensure all connections are clicked firmly into place to avoid pressure drops during the job.
  4. Mow the Concrete Clean. Place the surface cleaner flat on the concrete before squeezing the trigger. Move the attachment in slow, overlapping rows similar to how you would mow a lawn.
  5. Precision Edges Matter. Switch to a standard 25-degree spray nozzle to clean the perimeter edges and curbs where the surface cleaner cannot reach. Keep the wand at a consistent 45-degree angle to push water and dirt away from the house.
  6. Sweep Away the Mess. Use a low-pressure spray or your garden hose to push the loosened mud and dirty water toward the street drainage. Work in a single direction to keep the driveway clear of standing sludge.