How to Pressure Wash a Driveway Without Damaging It
Done wrong, a pressure washer can etch stripes into concrete that never fully go away. Here's how to do it evenly and safely.
1. Clear and Pre-Treat
Sweep off loose debris, and pre-treat any oil stains or heavy dark patches with a concrete degreaser — pressure alone often won't fully lift oil stains.
2. Use the Right Nozzle
A wide fan tip (25° or 40°) spreads the pressure out and is much safer for concrete than a narrow 0° tip, which can gouge or etch the surface if held too close or too long in one spot.
3. Keep the Wand Moving
Hold the nozzle 12-18 inches from the surface and keep it moving in even, overlapping passes — lingering in one spot is exactly what causes uneven, striped-looking concrete.
4. Work in Sections
Rinse a manageable section at a time so cleaner and dirty water doesn't dry back onto areas you've already done.
When to Call a Pro Instead
Pavers, stamped or colored concrete, and older or already-cracked concrete are much easier to damage with a pressure washer than they are to fix afterward — if you're not confident in your equipment or technique on those surfaces, it's worth having it done professionally.
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