If you live in Columbus or anywhere in the Chattahoochee Valley, you already know Georgia
weather doesn’t do your home’s exterior any favors. Between the heat, humidity, and heavy
spring rains, mold, mildew, and algae have everything they need to take hold — often faster
than homeowners expect. So how often should you actually be pressure washing? Here’s a
realistic breakdown.
The General Rule: Once a Year
For most Columbus homes, once a year is a reasonable baseline for a full exterior wash —
siding, driveway, walkways, and roof. Spring is a popular time, since it clears away winter
grime and gets your home ready for the humid months ahead when algae and mildew growth
accelerates.
What Can Push That Timeline Up
Shaded, Humid Yards
Homes surrounded by trees or with limited direct sunlight tend to stay damp longer,
which speeds up mold and algae growth. If your siding is often shaded, consider washing
every 6-9 months instead of annually.
Homes Near Red Clay or Unpaved Areas
Georgia’s red clay soil splashes and stains easily during heavy rain, especially on lower
siding and driveways. If this is a recurring issue at your property, more frequent
driveway and lower-siding cleaning may be worth it.
Visible Staining or Slippery Surfaces
Don’t wait for a calendar date if you’re already seeing green or black streaks, or if
a walkway or pool deck feels slippery — that’s algae buildup, and it’s both a
maintenance and safety issue worth addressing right away.
What About Roof Washing?
Roofs generally need cleaning less often than siding or driveways — every 2-3 years is
typical, unless you’re seeing noticeable black streaking (algae) sooner. Because roof
cleaning requires a gentler soft-wash method to avoid shingle damage, it’s worth having a
professional assess timing rather than guessing.
Not Sure Where Your Home Stands?
Every property is a little different depending on shade, drainage, and exposure. If you’re
unsure whether your home is due, a local pro can take a quick look and let you know what
actually needs attention — no guesswork required.