How Often Should You Pressure Wash Your Driveway?

Most homeowners in West Plains and Howell County wait way too long between driveway cleanings. The common answer you'll hear is 'once a year' — and while that's a decent baseline, the real answer depends on your specific situation.

The General Rule of Thumb

For most residential driveways in Missouri, once every 12 to 18 months is a good target. That keeps algae and mold from getting established, prevents oil stains from becoming permanent, and keeps your concrete looking well-maintained.

But there are situations where you need it more often.

Clean More Often If You Have...

• Heavy tree cover — leaves, sap, and shade create perfect conditions for algae and mold
• Oil or fluid leaks from vehicles — the longer oil sits, the deeper it penetrates
• A north-facing driveway that stays damp and shaded
• High traffic — delivery vehicles, multiple cars, frequent use
• A HOA or you're selling the house — curb appeal matters

What Happens If You Wait Too Long?

Concrete is porous. Over time, algae, mold, and oil work their way deeper into the surface. What would have come off easily with a professional clean at the one-year mark becomes a much harder job at year three or four — and some stains become essentially permanent if left long enough.

Beyond staining, algae and moss growth make driveways dangerously slippery when wet. This is especially true in the Ozarks where moisture is frequent. A slippery driveway is a liability, especially if you have elderly family members or visitors.

Signs You Need a Clean Right Now

• You can see green or black growth on the surface
• The driveway looks noticeably darker than when it was new
• Oil stains have been sitting for more than a few months
• It feels slippery or soft underfoot when wet
• You're putting the house on the market

The bottom line — don't wait until your driveway looks terrible to call. A regular cleaning schedule keeps it easy to maintain and prevents permanent damage. Once a year is a great habit. Twice a year if you have trees overhead or heavy traffic.